bluuebunny/crossref_metadata_2025 huggingface dataset:
From a Tall Man to “Zhan the Chinese Giant”
Authors: Men Bozhou
Published: September 2024

Since the 1970s, institutionalized enfreakment as represented by the Victorian freak show has provided scholars with a lens through which to examine nineteenth-century Western societies. However, current scholarship sidesteps questions such as how people in colonized countries perceived their enfreaked compatriots and how they negotiated their positions in the new international order as symbolized by this globalized entertainment industry. This article addresses these questions through a case study of Zhan Wu, the celebrated “Chinese giant” in Euro-American freak shows from approximately 1865 to 1887 who was, at the time, a spectacle in Chinese print media. The article argues that the way the Chinese media represented Zhan's body, shifting from nonchalance to disdain and then to eventually viewing it as a symbol of China's recent suffering, epitomizes a history of cooperation and mutual influence among the global entertainment industry, print media, and their consumers worldwide. More important, it reveals that as China's mass media and reading public joined in a global imaginaire that enfreaked the Chinese as a race, they were not merely incorporated by this discourse; they also reshaped it to express their understandings about a new Chinese identity that was to emerge in the fin de siècle era.
Socio-demographic analysis of destination selection factors for Himalayan Hill destinations
Authors: Badoni Manish , Rawat Babita , Aggarwal Megha
Published: September 2024

Background The towering peaks of the Himalayas lie in troves of captivating hill destinations, especially in India. Each destination aims to provide tourists with unique experiences and breath-taking landscapes. Understanding the tapestry of factors that weave the allure of these destinations and draw visitors from diverse backgrounds remains intriguing. Method This study delves into the socio-demographic tapestry of Himalayan hill destination selection, unraveling the complex interplay of demographic characteristics, social influences, and individual motivations that shape tourists’ choices. Results This study aims to answer why different tourists have different travel choices and what factors are the drivers behind such choices. The results show that destination selection factors are similar irrespective of respondents’ socio-demographic variabilities; however, for a few factors, the results are reversed. Conclusion The study has implications for policymakers and the limitations of the research discussed at the end.
Homeless patients requiring haemodialysis: incidence, caseload characteristics, and implications for care
Authors: White Carla , Ní Cheallaigh Clíona , Griffin Brenda
Published: September 2024

Background Homelessness is a recognized risk factor for the development of kidney failure. However, the risk of requiring renal replacement therapy (RRT) in homeless populations remains unknown. Furthermore, access to and provision of RRT for homeless populations have not been described. Methods We performed a retrospective study of all patients who newly commenced in-centre haemodialysis at St. James’s Hospital, Dublin, from January 2021 to December 2023. Housing status was captured using registered addresses and a review of social workers’ assessments. Homelessness was defined according to the European Typology on Homelessness and Housing Exclusion Criteria. Using publicly available census and homelessness data, we estimated the risk of commencing haemodialysis among homeless and non-homeless populations in the catchment area. Results The overall prevalence of homelessness among adults in the catchment area was approximately 2000/270,000 (0.74%). Of the 74 patients who commenced haemodialysis over the 3-year period, 13 (17.6%) were homeless. There was a significant difference in the incidence of commencing haemodialysis between non-homeless and homeless individuals in the catchment area (p<0.001, chi-square test). Among patients who commenced haemodialysis, the mean age was 53 years in homeless patients and 62 years in non-homeless patients (p<0.05, one-way ANOVA). 3/13 homeless patients (23%) had received nephrology healthcare at least 3 months prior to haemodialysis, compared with 39/61 non-homeless patients (64%) (p <0.05, chi-square). Of the three homeless patients who had received three months of nephrology healthcare prior to haemodialysis, all three patients commenced haemodialysis via an arteriovenous fistula. Mental health comorbidities were more frequent among homeless patients than among non-homeless patients (23% versus 8%) (not statistically significant), as were substance use disorders (38% versus 7%) (p<0.05, chi-squared test). Conclusion The incidence of kidney failure requiring haemodialysis was higher in homeless adults than in their non-homeless peers. Homeless patients were younger and started haemodialysis more urgently. There is an unmet need for nephrology healthcare for the homeless population.
Empowering Global AMR Research Community: Interactive GIS dashboards for AMR data analysis and informed decision-making
Authors: Opiyo Stephen Obol , Nalunkuma Racheal , Nanyonga Stella Maris , Mugenyi Nathan , Kanyike Andrew Marvin
Published: September 2024

Background Antimicrobial Resistance (AMR) is a critical global public health concern, demanding effective tools for research, data analysis, and decision-making. This study proposes a groundbreaking approach to empower the global AMR research community by introducing interactive Geographic Information System (GIS) dashboards. These dashboards aim to facilitate comprehensive data analysis of AMR across multiple countries, providing insights into antimicrobial usage (AMU), resistance patterns, and geographic distribution. Methods The approach involves developing GIS dashboards that integrate and harmonize AMR data from diverse sources, including clinical laboratories, surveillance networks, and public health agencies. A comprehensive dashboard was created to encompass data from multiple countries, providing advanced analysis and visualization tools. Another dashboard was developed with a specific focus on Kenya and Uganda to enable comparative analysis of AMR within these regions. Additionally, a simulated dataset for Kampala, Uganda, was generated to address data gaps in this area. Results The GIS dashboards serve as powerful tools for visualizing and analyzing AMR-related datasets, providing stakeholders with a comprehensive view of the global AMR landscape. These dashboards offer valuable insights into antimicrobial usage, resistance patterns, and geographical distribution. The centralized platform facilitates data exploration and analysis, aiding researchers, policymakers, and healthcare professionals in making informed decisions to combat AMR. Conclusions In conclusion, the study demonstrates that the developed GIS dashboards empower stakeholders by providing valuable insights and informed decision-making capabilities. The dashboards serve as essential tools for addressing the global challenge of AMR, allowing for a deeper understanding of the problem and informing effective strategies. The approach outlined in this study has the potential to significantly contribute to the ongoing efforts to combat AMR on a global scale.
The genome sequence of an ichneumonid wasp, Hyposoter dolosus (Gravenhorst, 1829)
Authors: Broad Gavin R. ,   Natural History Museum Genome Acquisition Lab,   Darwin Tree of Life Barcoding collective,   Wellcome Sanger Institute Tree of Life Management, Samples and Laboratory team,   Wellcome Sanger Institute Scientific Operations: Sequencing Operations,   Wellcome Sanger Institute Tree of Life Core Informatics team,   Tree of Life Core Informatics collective,   Darwin Tree of Life Consortium
Published: September 2024

We present a genome assembly from an individual male Hyposoter dolosus (ichneumonid wasp; Arthropoda; Insecta; Hymenoptera; Ichneumonidae). The genome sequence spans 222.70 megabases. Most of the assembly is scaffolded into 12 chromosomal pseudomolecules. The mitochondrial genome has also been assembled and is 27.89 kilobases in length.
The genome sequence of the common flesh fly, Sarcophaga carnaria (Linnaeus, 1758)
Authors: Falk Steven , Mitchell Ryan , Akinmusola Ruth Y. ,   University of Oxford and Wytham Woods Genome Acquisition Lab,   Natural History Museum Genome Acquisition Lab,   Darwin Tree of Life Barcoding collective,   Wellcome Sanger Institute Tree of Life Management, Samples and Laboratory team,   Wellcome Sanger Institute Scientific Operations: Sequencing Operations,   Wellcome Sanger Institute Tree of Life Core Informatics team,   Tree of Life Core Informatics collective,   Darwin Tree of Life Consortium
Published: September 2024

We present a genome assembly from an individual male common flesh fly, Sarcophaga carnaria (Arthropoda; Insecta; Diptera; Sarcophagidae). The genome sequence has a total length of 744.10 megabases. Most of the assembly is scaffolded into 6 chromosomal pseudomolecules, including the X sex chromosome. The mitochondrial genome has also been assembled and is 19.98 kilobases in length. Gene annotation of this assembly on Ensembl identified 15,248 protein-coding genes.
USING MARKETING TOOLS TO ATTRACT THE ATTENTION OF APPLICANTS TO THE EDUCATIONAL PROGRAM
Authors: Ashurbekov R. , Kashtanova YEkatyerina , Shchegulina Oksana
Published: September 2024

The article focuses on the need for marketing activities by institutions of higher education in the context of increasing competition in the educational services market. The main tasks and functions of marketing in the activities of higher education institutions are highlighted. The approaches to determining the essential characteristics of an educational product of a higher education institution are analyzed. The forms and methods used to promote educational programs of the university are considered. Special attention is paid to marketing tools to attract the attention of applicants to the educational program. The article describes the content marketing methodology for creating useful and meaningful information to attract the attention of potential applicants to the educational program. The role and place of the graduating department in the marketing activities of the university to attract future students and ensure the effectiveness of communication interaction is determined. A program has been developed to study the peculiarities of communication between the graduating department and potential applicants. Based on the analysis of the results obtained, significant directions for attracting motivated applicants and gaining their trust in the educational program being implemented have been established. It is proposed to use a research focus that will help determine the competitive position of the educational program being implemented from the point of view of potential applicants and obtain data to improve the educational product promotion program, create and maintain an attractive image of the graduating department and reduce the risks of losing motivated and well-trained applicants.
PROFESSIONAL STRESS IN THE CONTEXT OF GLOBAL CHANGES
Authors: Gasparovich E. , Fang Chengming
Published: September 2024

In the modern world, the HR brand occupies a key place in the company’s personnel strategy. Demonstrating its values and mission allows a company to attract only those employees with whom the company has similar views. At the same time, the development of internal HR branding increases the loyalty of personnel, which in the future also allows increasing brand awareness among job seekers.

The formation of an HR brand directly depends on the events and tools that the company chooses for itself. The significance of the study is due to the fact that in the modern world, the competitiveness of an organization is determined not only by the quantity and quality of products produced, but also by the quality of human capital that needs to be attracted and retained. The formation of an HR brand contributes to solving organizational problems in two vectors: implementing the HR management process within the organization; attracting potential personnel using the attractiveness of the company’s HR brand.

HR branding is a set of activities that are organized and implemented by the company’s HR/PR departments. Their main goal for fulfilling organizational tasks is to increase the company’s recognition in the market, attractiveness to potential future employees, and increase the company’s support from existing personnel. External HR branding is manifested in organizational activities aimed at increasing the attractiveness of potential personnel and hiring candidates who meet the requirements. Intra-organizational HR branding is aimed at developing loyalty, support, involvement and commitment of staff to the interests and mission of the organization. The company’s HR brand, as an important component of its effective development, is part of the organization’s mission, serves to achieve its goals in a competitive market.
Evaluation of Quality Attributes and Rheological Behavior of Tahini with Addition of Natural Sweetener and Cocoa Liquor
Authors: Castillo Piedad Montero , Zuñiga Karina Vivanco , Alvarez Delibeth Cuadro
Published: September 2024

Tahini is a globally recognized creamy paste made from sesame seeds, whose seeds are widely produced in Colombia but little used in the production of products. Therefore, the objective of this study was to evaluate the quality attributes through proximal, microbiological, and sensory analysis, and the rheological behavior of tahini with the addition of natural sweetener, honey, and cocoa liquor as sensory additives, using local crops. A 2X2X2 factorial design with sesame paste, honey concentration, and cocoa liquor as factors were used to prepare tahini. Proximal, microbiological, and sensory analyses were carried out to determine the bromatology, microbiological suitability, and sensory acceptability, respectively. The rheological behavior was studied by shear rate sweep, controlling the deformation 1x10-² s-1 to 1x10-² s-1 with a fit to the Ostwald de Waele model. The rheological characterization of the formulations showed that all of them exhibited pseudoplastic flow behavior, with F4 standing out as having a higher apparent viscosity. Finally, formulation F4 showed the best bromatological, rheological, and sensory characteristics, demonstrating that the incorporation of new ingredients can modify traditional tahini to promote its consumption.
The Effect of Prawns Shell Carotenoprotein Insertion on the Quality and Oxidative Stability of Tuna Eye Oil
Authors: Trilaksani Wini , La Dia Wa Ode Nur Asma , Ramadhan Wahyu
Published: September 2024

The oxidation of polyunsaturated fatty acids (PUFAs) reduces the nutritional value of fish oil supplements and poses health risks due to the formation of free radicals and oxidative compounds. Consequently, preventing or minimizing oxidation in these supplements is a critical concern in the production industry. Tuna eye (TE) oil, similar to other fish oils, is highly prone to oxidation, leading to the need for antioxidant enhancement. Carotenoprotein, rich in astaxanthin from shrimp shells, is a powerful natural antioxidant that can potentially stabilize PUFAs in TE oil, but the application to TE oil has not been previously explored. Therefore, this study aimed to evaluate the effect of shrimp shell-derived carotenoprotein on the quality and oxidative stability of TE oil during storage. The proximate composition of tuna eye and shrimp by-products was analyzed during the investigation process. Initial TE oil and TE oil with added carotenoprotein were assessed for free fatty acid content, acid value, peroxide value, p-anisidine value, total oxidation value, and heavy metal content. Carotenoprotein was evaluated for its color and antioxidant activity. The TE oil was combined with 0.4%, 0.6%, and 0.8% (v/v) concentrations of carotenoprotein and examined for stability using the Schaal oven test method at 40°C. The variations in these concentrations were systematically selected to determine potential concentration-dependent effects on TE oil oxidative stability. The results showed that on day 60 of TE oil storage at room temperature, oxidative degradation was significantly influenced by carotenoprotein concentration. Free fatty acids increased to 1.39%, while the values of acid, peroxide, anisidine, and total oxidation identified at the 0.4, 0.6, and 0.8% concentrations were 1.61, 1.50, and 1.24 mg KOH/kg, 18.87, 15.98, and 13.29 meq/kg, 10.80, 11.40, and 9.70 meq/kg, as well as 48.54, 43.36, and 36.28 meq/kg, respectively. Moreover, 0.8% carotenoprotein addition was found to effectively prevent TE oil deterioration compared to the control group.
Development of Spray Drying of Powdered Oolong Tea Incorporated with Chinese Jujube Beverage
Authors: Wirivutthikorn Wattana
Published: September 2024

One useful economic crop which is utilized worldwide is Chinese jujube. It offers both nutritional and therapeutic benefits. Meanwhile, Oolong tea is a semi-oxidized form of tea which has a flavour that falls somewhere between black tea and green tea. Finally, spray-drying is an important technique used in food preservation. This current study sought to assess the most suitable use of Chinese jujube along with appropriate levels of maltodextrin when creating a mixed Oolong tea which incorporates Chinese jujube and is subsequently processed via spray-drying. Oolong tea served as the control sample, while evaluations were carried out on 60%, 70% and 80% blends of Chinese jujube with maltodextrin which served as a carrier agent at concentrations of 20 g, 30 g, 40 g and 50 g. These solutions underwent spray-drying where the respective inlet and outlet temperatures were 190°C and 80°C. An evaluation of the physico chemical, microbiological and sensory evaluation were performed. There was evidence of an increase in the total phenolic compounds, whereas in contrast there was a decline in antioxidant activity. L* and +a* showed no statistically significant difference, although for +b* a statistically significant difference was found. For products with mixed Chinese jujube and Oolong tea, the moisture, water activity and pH values were shown to be lower, although there was an increase in total soluble solids. In the evaluation, flavour and overall acceptability for Treatment 4 (80% Chinese jujube) achieved the highest respective ratings at 8.17 and 8.13 on the 9-point scale. This demonstrates that spray-drying can be beneficial in the context of powdered particles. The combination of Chinese jujube and powdered Oolong tea provides good antioxidant properties and offers strong potential for applications in the food sector.
In vitro Bioaccesibility of Phenolic Compounds from the Halophytes Suaeda Edulis and Suaeda Esteroa: Opportunity for the Development of Novel Foods
Authors: Becheleni Francyelli Regina Costa- , Troyo-Diéguez Enrique , Ruiz-Hernández Alan Amado , Ayala-Niño Fernando , Bustamante-Salazar Luis Alejandro , Salazar-López Norma Julieta , Robles-Sánchez Rosario Maribel
Published: September 2024

Halophytic plants grow in high salinity environments and present phytochemicals with antioxidant properties, such as phenolic compounds; due to the uncertain availability of healthy foods, there is a growing interest in their nutritional potential. However, their bioactive compounds with beneficial health effects are limited in their bioaccessibility. The objective of this study was to subject S. edulis and S. esteroa to an in vitro digestion process to evaluate the bioaccessibility and total antioxidant capacity of phenolic compounds during three phases of digestion. We determined phenolic compounds, flavonoids, and antioxidant capacity by colorimetric methods and phenolic composition by UHPLC-DAD. Total phenols, total flavonoids, and total antioxidant capacity by DPPH and TEAC in the three phases of digestion (oral, gastric, and intestinal) of S. esteroa were higher than in S. edulis, founding 4.84 % higher in total phenol content, and 0.05 % in total flavonoid content; also, and 28.94 and 23.93 % higher in total antioxidant capacity by DPPH and TEAC, respectively in the intestinal digestion phase. The bioaccessibility of S. edulis was higher than in S. esteroa; the intestinal was the phase reflecting more bioaccessible compounds. The bioaccessibility percentages of total phenols and flavonoids were 590.16 and 1012.93 %, and the percentage recovery of total antioxidant capacity by DPPH and TEAC were 181.37 and 139.74 %. We identified phenolic acids ferulic, p-Coumaric, and synaptic (hydroxycinnamic), gallic and protocatechuic (hydroxybenzoic), the flavonoids catechin (flavan-3-oles), myricetin and ruthin (flavonols), naringenin and naringin (flavonones). S. esteroa presented bioactive compounds in higher concentrations than S. edulis due to the stress imposed by its habitat; nevertheless, the determined bioactive compounds of S. edulis showed a higher bioaccessibility because it was managed under local improvement.
Clinical characteristics of renal anastomotic hemangioma
Authors: Huang Kai
Published: September 2024

In this editorial, we comment on the article by Chen and Cai. We focus on renal anastomotic hemangioma, which is a rare benign hemangiomatous disease. This disease has unique clinical characteristics. Its biological behavior is benign, but its imaging results are similar to those of renal cancer. Renal anastomotic hemangioma is easy to misdiagnose and can lead to unnecessary radical nephrectomy. Therefore, urologists need a better understanding of this disease. We believe that patients with renal anastomotic hemangioma should receive individualized diagnosis and treatment to avoid overtreatment.
TDT-MIL: a framework with a dual-channel spatial positional encoder for weakly-supervised whole slide image classification
Authors: Zhang Hongbin , Feng Ya , Zhang Jin , Li Guangli , Wu Jianguo , Ji Donghong
Published: September 2024

The classic multiple instance learning (MIL) paradigm is harnessed for weakly-supervised whole slide image (WSI) classification. The spatial position relationship located between positive tissues is crucial for this task due to the small percentage of these tissues in billions of pixels, which has been overlooked by most studies. Therefore, we propose a framework called TDT-MIL. We first serially connect a convolutional neural network and transformer for basic feature extraction. Then, a novel dual-channel spatial positional encoder (DCSPE) module is designed to simultaneously capture the complementary local and global positional information between instances. To further supplement the spatial position relationship, we construct a convolutional triple-attention (CTA) module to attend to the inter-channel information. Thus, the spatial positional and inter-channel information is fully mined by our model to characterize the key pathological semantics in WSI. We evaluated TDT-MIL on two publicly available datasets, including CAMELYON16 and TCGA-NSCLC, with the corresponding classification accuracy and AUC up to 91.54%, 94.96%, and 90.21%, 94.36%, respectively, outperforming state-of-the-art baselines. More importantly, our model possesses a satisfactory capability in solving the imbalanced WSI classification task using an ingenious but interpretable structure.
Photon-number resolution with SNSPDs via statistical analysis of electrical traces
Authors: Schapeler Timon , Lamberty Niklas , Hummel Thomas , Schlue Fabian , Stefszky Michael , Brecht Benjamin , Silberhorn Christine , Bartley Tim J.
Published: September 2024

We present a large, high-precision data set of SNSPD traces. Statistical analysis tools can identify relevant features to gain optimized photon-number resolution with SNSPDs. Rising edge and peak amplitude show photon-number resolution up to n = 4.
Compressive Tomography of Unstructured High-Dimensional Photonic Entanglement
Authors: McCutcheon Will , Goel Suraj , Valencia Natalia Herrera , Mackay Euan , Leedumrongwatthanakun Saroch , Malik Mehul
Published: September 2024

Entanglement-based quantum networks require characterising resources shared between distant nodes. We distribute high-dimensional (d = 131×131 > 214) entangled states through multi-mode fibres, characterise them using compressive sensing (compression ratios ≤ 0.00103) and certify reconstruction fidelity (F ≥ 0.9441).
Waveguide-based reconfigurable quantum network at telecom wavelength
Authors: Rincón Leonardo , Fainsin David , Namdar Peter , Roman-Rodriguez Victor , Zanin Guilherme , Treps Nicolas , Diamanti Eleni , Parigi Valentina
Published: September 2024

We present a source of frequency multipartite entangled states, which can be tailored into a quantum network through oriented measurements of its nullifiers.
Quantum Control and Waveguide Integration of Diamond Tin-Vacancy Spin Qubits
Authors: Beukers Hans K.C. , Waas Christopher , Pasini Matteo , Codreanu Nina , Brevoord Julia M. , Turan Tim , Hanson Ronald
Published: September 2024

We show coupling of an SnV center to a diamond waveguide of 20% with almost transform-limited optical transitions. Besides, we show control over the SnV spin qubit and extend its coherence to over a millisecond.
Comparing Weak References For Quantum Long-Baseline Telescopy
Authors: Brown Matthew , Allgaier Markus , Raymer Michael , Smith Brian
Published: September 2024

We compare the signal-to-noise ratio for different measurements that could be used for stellar interferometry. We find that single-photon sources with number-resolved detection outperform other weak local oscillator states.
Limited quantum advantage for stellar interferometry via CV teleportation
Authors: Huang Zixin , Baragiola Ben Q. , Menicucci Nicolas C. , Wilde Mark M.
Published: September 2024

We consider stellar interferometry in the continuous-variable (CV) quantum information formalism and use the quantum Fisher information (QFI) to characterize the performance of three key strategies: direct interferometry, local heterodyne, and a CV teleportation-based strategy. In the high-transmission regime, the CV teleportation strategy is inferior to DI. Curiously, in the high-loss regime, a small region of loss exists where the CV teleportation strategy slightly outperforms both DI and local heterodyne. We describe this advantage as limited because it occurs for a small region of loss, and the magnitude of the advantage is also small. We argue that practical difficulties further impede achieving any quantum advantage, limiting the merits of a CV teleportation-based strategy for stellar interferometry.
Integration of Surface Ion Traps and Metalens with a High Collection Efficiency
Authors: Lim Hae , Froech Johannes , Choi Minho , Majumdar Arka , Mouradian Sara
Published: September 2024

We present a system integrating metalenses with surface ion traps, simultaneously achieving a large FOV and a high NA. We describe the fabrication process and report simulation results on the trapping properties and collection efficiency.
Continuous variable entanglement in a cold-atoms mirrorless optical parametric oscillator
Authors: Borba G. C. , Moreira R. S. N. , Cruz L. S. , Martinelli M. , Felinto D. , Tabosa J. W. R.
Published: September 2024

We explore both the internal and external atomic degrees of freedom to demonstrate the observation entangled light via multiple cascading parametric FWM in a sample of cold cesium atoms.
Purification of Heralded Single Photons by Conditional Pumping
Authors: Kao Yung-Cheng , Chuu Chin-Sung
Published: September 2024

We experimentally demonstrated a novel approach to purify the heralded single photons from parametric down conversion. By implementing a conditional pumping scheme, we observed the reduction of g2(0) without scarifying the generation rates.
Integrated Photonics for the Monlithinc Generation and Detection of Quantum Continuous Variable States of Light
Authors: Green Oliver , Matthews Jonathan C.F. , Ferranti Giacomo
Published: September 2024

We present plans to unite sources of continuous variable quantum light and detectors on a single silicon photonics chip. This includes the extension of chip based homodyne detection to the pulsed regime.
Entanglement-efficient distributed quantum computing
Authors: Wu Jun-Yi , Andres-Martinez Pablo , Forrer Tim , Mills Daniel , Matsui Kosuke , Henaut Luciana , Yamamoto Kentaro , Soeda Akihito , Duncan Ross , Murao Mio
Published: September 2024

We introduce an embedding-enhanced nonlocal-handling technique to save the entanglement consumption in distributed quantum computing (DQC) between two quantum processing units. The embedding technique is incorporated into the Steiner-tree distribution for DQC over heterogeneous networks.
Traceable Device-Independent Randomness as a Service
Authors: Kavuri Gautam A. , Palfree Jasper , Reddy Dileep V. , Zhang Yanbao , Mazurek Michael D. , Stevens Martin J. , Bienfang Joshua C. , Abellán Carlos , Mitchell Morgan W. , Mirin Richard P. , Nam Sae Woo , Knill Emanuel , Shalm L. Krister
Published: September 2024

We implement a traceable protocol for device-independent random number generation. Our demonstration involves transparently integrating a device-independent RNG into a public randomness beacon, and feeding 7434 random number pulses into the beacon over 39 days.
Optoacoustic entanglement in Brillouin-active waveguides
Authors: Zhu Changlong , Genes Claudiu , Stiller Birgit
Published: September 2024

Entanglement is a key resource to many emerging quantum technologies. Here, we present a scheme to engineer bipartite entanglement between traveling acoustic phonons and photons in Brillouin-active waveguides at a modest high environment temperature.
Fiber-pigtailed Quantum Dot Hybrid Circular Bragg Gratings
Authors: Rickert Lucas , Vajner Daniel , Helversen Martin v. , Schall Johannes , Rodt Sven , Reitzenstein Stephan , Zolnac Kinga , Musial Anna , Sek Grzegorz , Li Shulun , Niu Zhichuan , Heindel Tobias
Published: September 2024

We report on the deterministic fabrication of high-performance hybrid circular Bragg gratings (hCBGs) with embedded InAs/GaAs quantum dots and their direct and permanent fiber-pigtailing to single mode fibers. The devices exhibit spontaneous emission lifetimes <50ps resulting in experimental Purcell factor well beyond 15. The fiber-pigtailed devices show excellent temperature stability and unprecedented performance in terms of the single photon purity.
Noise Reduction of a Fiber-memory Photon Source for Temporal Multiplexing
Authors: Tannous Ramy , Bustard Philip J. , Poitras Daniel , England Duncan , Sussman Benjamin J.
Published: September 2024

Multiplexing nonlinear photon pair sources provides a path towards a near-deterministic photon source. Here we present a significant noise reduction in a fiber-cavity integrated spontaneous four-wave-mixing source, designed for temporal multiplexing.
A New Programmable Quantum Simulator with Strontium Rydberg Atoms in Optical Tweezer Arrays
Authors: Gavryusev Vladislav , Guariento Luca , Giardini Veronica , Fantini Andrea , Storm Shawn , Catani Jacopo , Inguscio Massimo , Fallani Leonardo , Cappellini Giacomo
Published: September 2024

Ultra-cold interacting Rydberg Strontium atoms trapped in reconfigurable optical tweezers can simulate quantum magnetism and energy transport. I will present our setup and planned capabilities, including electric field control, 3D traps and single site addressing.
Extending the lifetime of collective Rydberg qubits
Authors: Kurzyna Stanisław , Niewelt Bartosz , Mazelanik Mateusz , Wasilewski Wojciech , Parniak Michał
Published: September 2024

Collective Rydberg excitations stored in atomic ensembles posses many advantages, such as strong coupling to light and immunity to single-atom loss. We present a scheme that allows 10-fold lifetime extension of collective Rydberg excitations, fully mitigating motional decoherence.
Towards High-Fidelity Gates for the Nitrogen-Vacancy Center in Diamond
Authors: Yun Jiwon , Bartling Hans P. , Schymik Kai-N. , van Riggelen Margriet , Enthoven Luc A. , van Ommen Hendrik Benjamin , Babaie Masoud , Sebastiano Fabio , Taminiau Tim H.
Published: September 2024

We realize high-fidelity gates for the two-qubit system formed by NV center. Using gate set tomography, we report gate fidelities exceeding 99%, and analyze the origin of the errors.
Photonic control of atom-like qubits using 2D scanning waveguide-on-cantilever “ski-jumps”
Authors: Wen Y. Henry , Zimmermann Matthew , Saha Matt , Palm Kevin J. , Greenspon Andrew S. , Dong Mark , Clark Genevieve , Witte Alex , Leenheer Andrew J. , Gilbert Gerald , Eichenfield Matt , Englund Dirk R.
Published: September 2024

We demonstrate 2D beam steering of a single-mode waveguide beam-spot with >10K resolution in a piezo-driven waveguide-on-cantilever scanner with broadband visible transmission and show local addressing of single color centers in diamond.
100-km Entanglement Distribution with Co-existing Quantum and Classical Signals in a Single Fiber
Authors: Rahmouni A. , Kuo P. S. , Li-Baboud Y.S. , Burenkov I. A. , Shi Y. , Jabir M. V. , Lal N. , Reddy D. , Merzouki M. , Ma L. , Battou A. , Polyakov S. V. , Slattery O. , Gerrits T.
Published: September 2024

We demonstrate metropolitan-scale polarization entanglement distribution with co-existing quantum and WR-PTP classical synchronization signals in the same single-core fiber. We achieved high-fidelity entanglement between nodes separated by 100 km of optical fiber.
Programmable High-Dimensional Quantum Circuits in Space and Time
Authors: Goel Suraj , Leedumrongwatthanakun Saroch , Valencia Natalia Herrera , Srivastav Vatshal , Danese Dylan , Tavakoli Armin , Conti Claudio , Pinkse Pepijn W. H. , McCutcheon Will , Malik Mehul
Published: September 2024

We harness the complex mixing process inside a commercial multi-mode fibre to program high-dimensional linear optical circuits for photonic qudits encoded in transverse space and time-of-arrival, and demonstrate their use for high-dimensional entanglement certification.
Integrating a fibre cavity with an ion trap for scalable quantum computing
Authors: Gao S. , Kassa E. , Kavungal V. , Oya S. , Okuno D. , Teh S. , Takahashi H.
Published: September 2024

Integrating optical micro-cavity with ion traps is essential to achieve interconnection between ion traps, which is a promising approach for scalable quantum computing. Here we demonstrate some of the key technologies required for this purpose.
Opto-Electronic Operation of an SNSPD with a Cryogenic Laser
Authors: Thiele Frederik , Lamberty Niklas , Hummel Thomas , Bartley Tim
Published: September 2024

We demonstrate an opto-electronic operation of an SNSPD at 1K, utilizing a photodiode bias and a cryogenic laser for signal-readout. The cryogenic photonic link reduces the heatload and maintains a high performance of the SNSPD.
Engineering Spectral Purity of Telecom Wavelength Photons Generated via SPDC for Multi-partite Quantum Communication
Authors: Conrad Johanna , Gómez Rodrigo , Leipe Markus , Ponce Meritxell Cabrejo , Steinlechner Fabian
Published: September 2024

We report on engineering spectrally pure photon pairs via SPDC and provide a comprehensive characterization of periodically and aperiodically poled KTP crystals as well as Hong-Ou-Mandel experiments between photons produced in distinct SPDC crystals.
Entangling Quantum Memories at High Rate using Gottesman-Kitaev-Preskill Qudits
Authors: Dhara Prajit , Jiang Liang , Guha Saikat
Published: September 2024

We propose an interface between solid-state quantum memories and Gottesman-Kitaev-Preskill encoded photonic qubits using cavity-assisted controlled phase gates [1, 2]. Our protocol yields capacity-approaching high rate of heralded entanglement among quantum memory registers in the low-loss regime.
Scaling Behaviour of Multinode Quantum Computers Connected with Imperfect Ebits
Authors: Stack John , Beghelli Alejandra
Published: September 2024

We distributed random circuits across multinode quantum computers with 2 to 6 nodes connected by imperfect ebits and studied scaling behaviour via an upper bound. High computational accuracy is achieved for ebit infidelity below 10−3.
Suppressing Polarization Mode Dispersion with the Quantum Zeno Effect
Authors: Nodurft Ian C. , Perez Alejandro Rodriguez , Naimipour Naveed , Shaw Harry C.
Published: September 2024

We show theoretically that a quantum Zeno effect can protect circularly polarized photons from polarization mode dispersion. This is accomplished by introducing absorbing material resonant with the polarization mode opposite that of the passing photon.
Halting single photon dissipation by Zeno effect
Authors: Vetlugin A. N. , Sidorova M. , Guo R. , Soci C. , Zheludev N. I.
Published: September 2024

We experimentally demonstrate that a single photon propagating through multiple absorbers in intricate optical networks can experience a significant reduction in dissipation rate as the number of absorbers increases.
A Arduino-Based Quantum Key Distribution System From Off-the-Shelf Electroncis
Authors: Klingmann Fabian , Stephan Mira , Noack Alexander , Kirrbach René
Published: September 2024

We propose a quantum key distribution system operated only by two Arduinos. We demonstrate the transmission of 7ns pulses using LEDs and detection with 55ps accuracy by the Arduinos. We estimate the photon detection rate.
Impact of Noise on Multipartite Entanglement Distribution in Quantum Networks
Authors: Lam Hahn , Sutcliffe Evan , Beghelli Alejandra
Published: September 2024

We examine non-ideal entanglement swapping and fusion operations in single-path and multipath routing for multipartite entanglement distribution. Results show the distance-invariant multipartite distribution rate of multipath routing is lost in the presence of noise.
Two-Pumps-Based Entanglement Generation Source Enabling Entanglement-Assisted Communication over Beyond Strong Atmospheric Turbulence Channels
Authors: Djordjevic Ivan B. , Nafria Vijay
Published: September 2024

Two S-/L-band pumps, satisfying PPLN-waveguide quasi-phase-matching-condition, are used to generate bright entangled-photons providing needed flexibility in wavelength-selection over entire C-band. By performing phase-conjugation on idler photons, we demonstrate entanglement-assisted communication at 1Gb/s over 1.5km FSO link operated in beyond strong turbulence regime.
Precision Thermal Feedback Wavelength Stabilized Adiabatic Single-Photon Quantum Key Transmitter
Authors: Hsu Shih-Chang , Lin You-Cheng , Lin Gong-Ru
Published: September 2024

Ultra-stable quantum-key transmitter with precision wavelength/phase control is approached using passively adiabatic package and actively thermal feedback controller to achieve decoding visibility of 99.4%, quantum bit-error-ratio of 3.06×10-2, and secure-key-rate of >42 kbit/s.
Towards practical squeezed light distribution with digital signal processing
Authors: Nguyen Huy Q. , Chin Hou-Man , Hajomer Adnan A.E. , Andersen Ulrik L. , Gehring Tobias
Published: September 2024

We propose and experimentally demonstrate a method for recovering squeezed light after detection with a free-running receiver station. We achieve approximately 1 dB of squeezing without the need for pre-aligning polarization or locking frequency and phase.
Engineering and certification of multimode non Gaussian states of light
Authors: Tripier-Mondancin Niels , Roeland Ganaël , Bouchereau Yann , Rincón Leonardo , Barral David , Walschaers Mattia , Parigi Valentina , Treps Nicolas
Published: September 2024

We use double homodyne detection to sample the Q-Husimi function of a photon-subtracted mutlimode squeezed vacuum state. Thereafter, we perform a fidelity estimation protocol to certify the Wigner negativity and stellar rank of the generated state.
Single-pair measurement of the Bell parameter
Authors: Virzì S. , Rebufello E. , Atzori F. , Avella A. , Piacentini F. , Lussana R. , Cusini I. , Madonini F. , Villa F. , Gramegna M. , Cohen E. , Degiovanni I. P. , Genovese M.
Published: September 2024

We present the first single-pair Bell inequality test, able to obtain a Bell parameter value for every entangled pair detected. After the measurements, each pair still presents a noteworthy amount of entanglement to be exploited for further quantum-protocols.
Imperfections in heralding three-photon GHZ states for quantum computing applications
Authors: Somhorst F. H. B. , Renema J. J.
Published: September 2024

We compute the effect of imperfections, specifically partial photon indistinguishability, on a linear-optical scheme that heralds three-photon Greenberger-Horne-Zeilinger (GHZ) states for use in a recently demonstrated scheme for fusion-based quantum computation.
Enhanced light collection from solid-state qubits in silicon carbide through grayscale hard-mask lithography
Authors: Bekker Christiaan , Jones Alexander , Cheng Xingrui , Salter Patrick , Smith Jason , Arshad Muhammad J. , Cilibrizzi Pasquale , Lomax Peter , Wood Graham S. , Cheung Rebecca , Knolle Wolfgang , Ross Neil , Gerardot Brian , Bonato Cristian
Published: September 2024

A scalable, shape-controllable method for nanofabrication of high-aspect-ratio microlenses in silicon carbide is presented. Light collection from these lenses is investigated, and an enhancement in collection efficiency of a factor 4.4±1.0 is demonstrated.
QOSST: A Highly Modular Open Source Platform for Continuous Variable Quantum Key Distribution Applications
Authors: Piétri Yoann , Schiavon Matteo , Acosta Valentina Marulanda , Gouraud Baptiste , Vidarte Luis Trigo , Grangier Philippe , Rhouni Amine , Diamanti Eleni
Published: September 2024

We present a highly modular Open Source Software to perform CV-QKD experiments. The software is hardware agnostic and was benchmarked on bulk and integrated receivers, reaching state of the art secret key rates.
MacZac: ultra low QBER time-bin qubit and qudit generator
Authors: Scalcon Davide , Bazzani Elisa , Vallone Giuseppe , Villoresi Paolo , Avesani Marco
Published: September 2024

The qubit encoding with low quantum-bit-error-rate (QBER) is crucial in effective quantum communications as it directly influence the final key-rate. We here introduce Mac-Zac scheme leveraging on intrinsically-stable interferometer reaching parts in 105 of base contrast.
Differential Quantum Gravimeters for field measurements
Authors: Janvier C. , Rosenbusch P. , Majek C. , Desruelle B.
Published: September 2024

Our Differential Quantum Gravimeter (DQG) measures simultaneously the mean gravitational acceleration and its vertical gradient to 10 nm/s2 and 0.1 E = 10-10 s-2, respectively. This is state-of-the-art. We give recent results including surveying.
Superconducting Diamond bus for Defect Centers Coupling
Authors: Chapnick Sarah , Cuenca Jerome A. , Williams Oliver A. , Zajac Joanna M
Published: September 2024

We propose, model and manufacture a novel resonator design for defects coupling in diamond. We employ resonator made of diamond that becomes superconducting when dopped with high concertation of Boron.
Tuning Inter-qubit Coupling Strengths by Sideband Driving
Authors: Chien Wei-Chen , Lin Chung-Li , Lai Tse-Yu , Kuo Watson , Chen Yen-Chun , Chen Chiidong
Published: September 2024

The iSWAP operation between two qubits serves as a means to quantify the inter-qubit coupling strength. We examine the inter-qubit coupling strength when the qubit frequency is modulated at 80 MHz. The coupling strength between qubits, mediated by various sidebands generated from the frequency modulation, can be dynamically tuned, following the Bessel dependencies. This dynamically tunable coupling between qubits provides a straightforward approach to create a testing ground for versatile quantum models.
Proposed optical test of continuous-variable contextuality
Authors: Liu Zheng-Hao , Neergaard-Nielsen Jonas. S. , Andersen Ulrik. L.
Published: September 2024

Based on the encoding of a qubit into an oscillator, we show how an optical test of continuous-variable quantum contextuality can be achieved using the photon’s spatial modes. We provide a concrete state-independent construction.
Order-Invariant Quantum Correlations in non-Hermitian Interferometers
Authors: Wolterink Tom A. W. , Heinrich Matthias , Scheel Stefan , Szameit Alexander
Published: September 2024

We identify sequences of concatenated two-mode systems that perform distinct linear optical transformations, whereas their two-photon behavior is invariant under reversal of the order. We experimentally verify this behavior in non-Hermitian interferometers of varying composition.
Probing NV Center Coupled Metal-Dielectric-Metal Architectures for Quantum Technologies
Authors: Singh Nitesh , Sehgal Drisha , Venkatesan Ananth , Nair Rajesh V
Published: September 2024

We experimentally demonstrated the emission rate and intensity enhancement of NV centers mediated by metal-dielectric-metal cavity coupling. Results show the wide tunability of cavity mode, a vital platform for coupling various quantum emitters.
Nonclassicality of Seeded Optical Parametric Oscillator in the Single-Photon Regime
Authors: Lee Chanseul , Yoon Tai Hyun
Published: September 2024

We discuss nonclassicality of nondegenerate optical parametric oscillator operating far below-threshold with weak seed fields. We show nonclassical measure that depends on the seeding amplitude ratio has the same values for intra- and extra-cavity fields.
Experimental Simulation of Loop Quantum Gravity on a Photonic Chip
Authors: Anguita Malaquias Correa , van der Meer Reinier , Huang Zichang , Qu Dongxue , Hooijschuur Peter , Liu Hongguang , Han Muxin , Renema Jelmer J. , Cohen Lior
Published: September 2024

We experimentally simulate a basic transition amplitude of Loop Quantum Gravity on an integrated photonic chip, and show that this amplitude falls within 4% error from the theoretical prediction.
Performing Joint Measurements of Light with Quantum Computers
Authors: Dimitroff Spencer D. , Sarovar Mohan
Published: September 2024

We establish a model employing transduction of optical states to qubits in a quantum computer followed by quantum computation to ease the difficulty of performing joint measurements of optical quantum states.
Nonlinear quantum optics at your fingertips: a multipurpose student-lab experiment on sensing with undetected photons
Authors: Zeja Marthe , Mann Felix , Pearce Emma , Ramelow Sven
Published: September 2024

We present a student-lab setup using a multipurpose nonlinear interferometer, enabling exploration of quantum interference and undetected photon sensing for mid-IR imaging and spectroscopy to facilitate hands-on understanding of modern quantum optics.
Topology optimization of high-performance optomechanical resonator
Authors: Shi Yincheng , Wang Fengwen , Høj Dennis , Sigmund Ole , Andersen Ulrik Lund
Published: September 2024

The quality factor of resonator is described by a dilution factor defined as the ratio of tension to linear strain energies. We implement topology optimization of resonators with the dilution factor as an objective. The finite element model combines mesh refinement and a mixed formulation to accurately model the boundary effects in eigenmode.
Hardware and Machine Learning Optimization of Diamond Quantum Sensors
Authors: Milas P. , Mahtab S. S. , Sujeta T. , Spencer M. G. , Ozturk B.
Published: September 2024

Quantum sensing with nitrogen vacancy (NV) color center defects in diamond was optimized with hardware and machine learning approaches, which led to the development of small footprint quantum sensor devices.
Unbalanced Interferometer beyond Coherence Length by Amplitude Measurement
Authors: Zhang Yunxiao , Tang Xuan , Guo Xueshi , Liang Cui , Li Xiaoying , Ou Z. Y.
Published: September 2024

We report the recovery of interference in an interferometer with path imbalance well beyond coherence length of the input field. This is achieved by direct amplitude measurement via homodyne detection.
Quantum secured-imaging using decoy state heralded single photon source
Authors: Vernekar Siddhant , Xavier Jolly
Published: September 2024

Considering a low mean photon number regime, we make a comparative analysis investigating the superior performance of decoy state heralded single photon source, making it ideal choice for integrating QKD protocols for secure quantum imaging.