cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Exploring the Strongly-Interacting Regime of Effective Multi-Body Interactions in a Trapped Ultracold Atom System
Creators: name: Honda, Kantaro
name: Takasu, Yosuke
name: Haruna, Yuki
name: Nishida, Yusuke
name: Takahashi, Yoshiro
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A two-body interaction or force between quantum particles is ubiquitous in nature, and the microscopic description in terms of the bare two-body interaction is the basis for quantitatively describing interacting few- and many-body systems. Alternatively, the effective description in terms of an effective two-body interaction successfully captures the essence of the systems. However, for several important observations, the explanation in terms of an effective two-body interaction is not satisfactory, and the effective three-body interaction has played an essential role in understanding the systems. In this study, we investigate a few-body system comprising of ultracold bosons tightly confined in a deep optical lattice site, which is effectively described as zero-dimensional bosons. By combining an occupancy-resolving high-resolution laser spectroscopy with an inter-orbital Feshbach resonance controlling the bare two-body interaction over a wide range, we experimentally reveal the behaviors of few-atom systems in a strongly interacting regime. Our results, for which perturbative calculations do not provide proper explanations, serve as a valuable and precise benchmark for theoretical approaches to strongly interacting few-body systems. As one important illustration, we obtain a clear signature of an effective four-body interaction evidenced by the binding energies of four and more atoms. This work is an important step for our deeper understanding of strongly interacting few-body systems.
description: 16 pages, 7 figures
Scribble Hides Class: Promoting Scribble-Based Weakly-Supervised Semantic Segmentation with Its Class Label
Creators: name: Zhang, Xinliang
name: Zhu, Lei
name: He, Hangzhou
name: Jin, Lujia
name: Lu, Yanye
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Scribble-based weakly-supervised semantic segmentation using sparse scribble supervision is gaining traction as it reduces annotation costs when compared to fully annotated alternatives. Existing methods primarily generate pseudo-labels by diffusing labeled pixels to unlabeled ones with local cues for supervision. However, this diffusion process fails to exploit global semantics and class-specific cues, which are important for semantic segmentation. In this study, we propose a class-driven scribble promotion network, which utilizes both scribble annotations and pseudo-labels informed by image-level classes and global semantics for supervision. Directly adopting pseudo-labels might misguide the segmentation model, thus we design a localization rectification module to correct foreground representations in the feature space. To further combine the advantages of both supervisions, we also introduce a distance entropy loss for uncertainty reduction, which adapts per-pixel confidence weights according to the reliable region determined by the scribble and pseudo-label's boundary. Experiments on the ScribbleSup dataset with different qualities of scribble annotations outperform all the previous methods, demonstrating the superiority and robustness of our method.The code is available at https://github.com/Zxl19990529/Class-driven-Scribble-Promotion-Network.
Japanese Migration to Brazil : How Japanese Immigrants Assimilated into Brazilian Society while Preserving their Culture
Creators: name: Grael, Sofia
Publisher: name: The University of British Columbia
Year: 2022

description: This research will follow the migration of Japanese individuals to Brazil in the early 1900s after a shortage of manual labor in Brazilian plantations and a lack of work in Japan. The Japanese established in Brazil and their hard labour resulted in them becoming farm owners. Nowadays, Japanese Brazilians are responsible for great empires of production in the countryside and contribute significantly to the national economy. Through the analysis of journal articles and primary sources such as documents of application to citizenship and photographs, I will analyse whether Japanese Brazilians created an isolated community within Brazil or successfully integrated into Brazilian culture and society. I will argue that Japanese immigrants in Brazil chose structural methods of self-isolation to preserve their culture, referring to the creation of Japanese schools, religious temples, country clubs, and commerce, while being open to the Brazilian population and customs. Is the creation of Japanese neighbourhoods a reality of self-isolation, external segregation, or a method of preserving the Japanese culture and faith?
Hilbert Space Fragmentation and Subspace Scar Time-Crystallinity in Driven Homogeneous Central-Spin Models
Creators: name: Kumar, Abhishek
name: Frantzeskakis, Rafail
name: Barnes, Edwin
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the stroboscopic non-equilibrium quantum dynamics of periodically kicked Hamiltonians involving homogeneous central-spin interactions. The system exhibits a strong fragmentation of Hilbert space into four-dimensional Floquet-Krylov subspaces, which oscillate between two disjointed two-dimensional subspaces and thus break the discrete time-translation symmetry of the system. Our analytical and numerical analyses reveal that fully polarized states of the satellite spins exhibit fragmentations that are stable against perturbations and have high overlap with Floquet eigenstates of atypically low bipartite entanglement entropy (scar states). Motivated by the breaking of discrete time translation symmetry by Floquet-Krylov subspaces, we introduce a novel type of time crystal that we call a ``subspace time crystal''. We present evidence of robust time-crystalline behavior in the form of a period doubling of the total magnetization of fully polarized satellite spin states that persists over long time scales. We compute non-equilibrium phase diagrams with respect to a magnetic field, coupling terms, and pulse error for various interaction types, including Heisenberg, Ising, XXZ, and XX. We also discuss possible experimental realizations of scar time crystals in color center, quantum dot, and rare-earth ion platforms.
description: 19 pages, 10 figures, 1 table, PRB published version
To Seize the Means of Production or the Means of Destruction : Temperance, Prohibition, and British Columbia’s Working Class
Creators: name: Ryder, Morgan
Publisher: name: The University of British Columbia
Year: 2022

description: This thesis approaches opinions on temperance and prohibition among early twentieth-century British Columbia’s working-class considering scholarship on temperance as an international progressive movement, rather than a moral reform movement. ‘Temperance activism’ has long been deployed by oppressed populations across the world in response to oppressors’ use of alcohol as a tool of domination, subjugation, and exploitation. Leaders of oppressed populations have harnessed temperance to promote organization in resistance movements against their oppressors, as well as to economically starve them. Harsh conditions for British Columbia’s working class led them to organize and engage in politics to resist capitalist oppression. This thesis seeks to determine whether the leaders among the working class who were devoted to improving working-class lives viewed temperance activism and prohibition of alcohol as a tool in overcoming capitalist oppression, despite the general unpopularity of prohibition among the working class. To answer this question, I look to working-class publications and working-class organizations’ official stances on the question of prohibition in an attempt to locate temperance activism.
Quantum state of fields in $SU(\infty)$ Quantum Gravity ($SU(\infty)$-QGR)
Creators: name: Ziaeepour, Houri
Publisher: name: arXiv
Year: 2024
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Our Universe is ruled by quantum mechanics and should be treated as a quantum system. $SU(\infty)$-QGR is a recently proposed quantum model for the Universe, in which gravity is associated to $SU(\infty)$ symmetry of its Hilbert space. Fragmentation of its infinite dimensional state due to random quantum fluctuations divides the Universe to approximately isolated subsystems. In addition to parameters of their {\it internal} finite rank symmetries, states and dynamics of subsystems are characterized by 4 continuous parameters and the perceived classical spacetime is their effective representation, reflecting quantum states of subsystems and their relative evolution. At lowest order the effective Lagrangian of $SU(\infty)$-QGR~has the form of Yang-Mills gauge theories for both $SU(\infty)$ - gravity - and internal symmetries defined on the aforementioned 4D parameter space. In the present work we study more thoroughly some of the fundamental aspects of $SU(\infty)$-QGR. Specifically, we clarify the impact of the degeneracies of $\mathcal{SU}(\infty)$ algebra on the construction of the model; describe mixed states of subsystems and their purification; calculate measures of their entanglement to the rest of the Universe; and discuss their role in the emergence of local gauge symmetries. We also describe the relationship between what is called {\it internal space} of $SU(\infty)$ Yang-Mills with the 4D parameter space, and analytically demonstrate irrelevance of the geometry of parameter space for physical observables. Along with these topics, we demonstrate the equivalence of two sets of criteria for compositeness of a quantum system, and show uniqueness of the limit of various algebras leading to $\mathcal{SU}(\infty)$.
description: 34 pages, 1 figure. version accepted by Academia Quantum; It includes a proposal for testing QGR using coherent lensed astronomical masers
Double-mixing CP violation in $B$ decays
Creators: name: Song, Wen-Jie
name: Shen, Yin-Fa
name: Qin, Qin
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study a long-overlooked CP violation observable, termed double-mixing CP violation, which arises from the interference between two neutral meson oscillating paths involved in a decay chain. The double-mixing CP violation is beneficial for the precise test of the Standard Model CKM mechanism, as it offers the potential to extract weak phases without pollution from strong dynamics. To provide a comprehensive understanding of the double-mixing CP violation, we perform phenomenological analyses on the cascade decays of the $B^0_d$ and $B^0_s$ mesons. Our results show that the double-mixing CP violation can be very significant in certain decay channels, such as $B^0_s \to ρ^0 K \to ρ^0(π^-\ell^+ν_\ell)$. In addition, we employ the decay process $B^0_d \to D^0 K \to (K^-π^+)(π\ellν)$ to demonstrate that the involved strong and weak phases can be directly determined from the experimental data without any theoretical inputs.
Space Complexity of Euclidean Clustering
Creators: name: Zhu, Xiaoyi
name: Tian, Yuxiang
name: Huang, Lingxiao
name: Huang, Zengfeng
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computational Geometry (cs.CG)
subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences

description: The $(k, z)$-Clustering problem in Euclidean space $\mathbb{R}^d$ has been extensively studied. Given the scale of data involved, compression methods for the Euclidean $(k, z)$-Clustering problem, such as data compression and dimension reduction, have received significant attention in the literature. However, the space complexity of the clustering problem, specifically, the number of bits required to compress the cost function within a multiplicative error $\varepsilon$, remains unclear in existing literature. This paper initiates the study of space complexity for Euclidean $(k, z)$-Clustering and offers both upper and lower bounds. Our space bounds are nearly tight when $k$ is constant, indicating that storing a coreset, a well-known data compression approach, serves as the optimal compression scheme. Furthermore, our lower bound result for $(k, z)$-Clustering establishes a tight space bound of $Θ( n d )$ for terminal embedding, where $n$ represents the dataset size. Our technical approach leverages new geometric insights for principal angles and discrepancy methods, which may hold independent interest.
description: Accepted by SoCG2024, TIT2025, in IEEE Transactions on Information Theory, 2025
The algebra $\mathcal{D}(W)$ via strong Darboux transformations
Creators: name: Parisi, Ignacio Bono
name: Pacharoni, Inés
Publisher: name: arXiv
Year: 2024
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 33C45, 42C05, 34L05, 34L10

description: The Matrix Bochner Problem aims to classify weight matrices $W$ such that the algebra $\mathcal D(W)$, of all differential operators that have a sequence of matrix-valued orthogonal polynomials for $W$ as eigenfunctions, contains a second-order differential operator. In \cite{CY18} it is proven that, under certain assumptions, the solutions to the Matrix Bochner Problem can be obtained through a noncommutative bispectral Darboux transformation of some classical scalar weights.
 The main aim of this paper is to introduce the concept of strong Darboux transformation among weight matrices and explore the relationship between the algebras $\mathcal{D}(W)$ and $\mathcal{D}(\widetilde{W})$ when $\widetilde{W}$ is a strong Darboux transformation of $W$. Starting from a direct sum of classical scalar weights $\widetilde W$, and leveraging our complete knowledge of the algebra of $\mathcal D(\widetilde W)$, we can easily determine the algebra $\mathcal D(W)$ of a weight $W$ that is a strong Darboux transformation of $\widetilde W$.
description: 23 pages. arXiv admin note: text overlap with arXiv:2311.16325
Recommendations to Enhance Ecosystem Services in the False Creek South Neighbourhood Association’s Plans for the Campus of Care
Creators: name: Lan, Xinyue
name: Yip, Erin
name: Traulsen, Emma
Publisher: name: The University of British Columbia
Year: 2022

description: Urban planning is the art of giving design, structure and care to the cities, which has become increasingly important as more people live in urban areas. In a changing world due to climate and land-use changes, it is vital to consider sustainability in urban planning. The False Creek South Neighborhood Association (FCSNA) is preparing a proposal to the City of Vancouver for a supportive housing complex called the Campus of Care (CoC). While there has been some consideration on the social aspects that the FCSNA wishes to incorporate into their proposal, little attention has been given to how the CoC can supply relevant ecosystem services (ES). The report provides suggestions developed for the plans of the CoC in order to reduce the environmental impact of the proposed infrastructure while increasing the presence of ES.
Some homological properties of category $\mathcal{O}$, VII
Creators: name: Mazorchuk, Volodymyr
Publisher: name: arXiv
Year: 2024
Subjects: subject: Representation Theory (math.RT)
subject: FOS: Mathematics

description: We describe Calabi-Yau objects in the regular block of the (parabolic) BGG category $\mathcal{O}$ associated to a semi-simple finite dimensional complex Lie algebra. Each such object comes with a natural transformation from the Serre functor to a shifted identity whose evaluation at that object is an isomorphism.
description: Revised version with some minor changes following the comments of the referee
A Distant Reading of Gender Bias in Dutch Literary Prizes
Creators: name: Visser, Noa
name: Van Cranenburgh, Andreas
name: Nguyen, Dong
Publisher: name: Zenodo
Year: 2022

description: Dutch authors have been criticizing the homogeneity and the dominance of white men authors in Dutch literary prize nominations and the Dutch literary scene. This homogeneity is clearly seen in the Dutch literary prizes, as 80% of the winners of the two most prominent Dutch literary prizes are men. This research investigates whether it is possible to identify author gender inequality in Dutch literary prizes using quantifiable literary qualities.
Navigating the Quantum Divide(s)
Creators: name: Gercek, A. Ayda
name: Seskir, Zeki C.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Physics and Society (physics.soc-ph)
subject: History and Philosophy of Physics (physics.hist-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: This article explores the potential divides from emerging quantum technologies (QT) on society, covering impacts on science, technology, geopolitics, and societal structures. We aim to challenge the concept of a single "quantum divide" by offering a comprehensive view. We propose four divides: in science, technologies, between countries, and within societies. The "Quantum Divide in Science" highlights gaps among scientists and access inequalities in research communities. The second divide, "Quantum Divide in Technologies through Path-dependency," looks at technology adoption processes. The "Quantum Divide between Countries" examines adoption reasons and outcomes across countries with varying development levels. Lastly, the "Quantum Divide within Societies" addresses societal implications, one of the most discussed in literature. We propose directions to navigate these divides, noting their interconnectedness and impact on innovation ecosystems. This study guides those interested in the quantum divide, navigation strategies, and QT's influence on scientific, technological, international, and societal institutions.
description: 21 pages, 4 figures
Library Labs at KBR: Digital Research Lab, CAMille, Data Science Lab and LabEL
Creators: name: Birkholz, Julie
name: Deseure, Brecht
name: Gribomont, Isabelle
name: Lu, Tan
Publisher: name: Zenodo
Year: 2022
Subjects: Digital Humanities
Library Science
Electronic Literature
Data Science

description: In this poster, we will introduce four labs which have been created at KBR in the past two years to further support this mission and foster research partnerships within KBR and beyond. These four labs are funded by the Belgian Science Policy Office (BELSPO) FED-tWIN programme – a federal research programme to support sustainable cooperations between Federal Scientific Institutions and Belgian universities. The joint mission of these projects is to lead the acquisition, preservation, dissemination and investigation of several subsets of the cultural and historical heritage which is either already part of KBR's collection, or which is being acquired in the context of KBR's mission.
PathM3: A Multimodal Multi-Task Multiple Instance Learning Framework for Whole Slide Image Classification and Captioning
Creators: name: Zhou, Qifeng
name: Zhong, Wenliang
name: Guo, Yuzhi
name: Xiao, Michael
name: Ma, Hehuan
name: Huang, Junzhou
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: In the field of computational histopathology, both whole slide images (WSIs) and diagnostic captions provide valuable insights for making diagnostic decisions. However, aligning WSIs with diagnostic captions presents a significant challenge. This difficulty arises from two main factors: 1) Gigapixel WSIs are unsuitable for direct input into deep learning models, and the redundancy and correlation among the patches demand more attention; and 2) Authentic WSI diagnostic captions are extremely limited, making it difficult to train an effective model. To overcome these obstacles, we present PathM3, a multimodal, multi-task, multiple instance learning (MIL) framework for WSI classification and captioning. PathM3 adapts a query-based transformer to effectively align WSIs with diagnostic captions. Given that histopathology visual patterns are redundantly distributed across WSIs, we aggregate each patch feature with MIL method that considers the correlations among instances. Furthermore, our PathM3 overcomes data scarcity in WSI-level captions by leveraging limited WSI diagnostic caption data in the manner of multi-task joint learning. Extensive experiments with improved classification accuracy and caption generation demonstrate the effectiveness of our method on both WSI classification and captioning task.
Determining Guilt in Eighteenth-Century England : Revisiting the Old Bailey Record
Creators: name: Westwood, AJ
Publisher: name: The University of British Columbia
Year: 2022

description: This thesis delves into the concept of guilt in eighteenth-century England and how it was determined by the courts. Through the analysis of murder trials from the Old Bailey Court Records, this thesis works to address questions regarding what the public perceptions of male violence were, as well as, how much eighteenth-century politeness and codes of civility and honour influenced court proceedings, the deliberation of the judges and juries, as well as the defences made by accused men in court. This thesis also looks into gendered violence and whether or not there are similarities or variable differences in the kinds of verdicts received by men involved in domestic murder compared to those received by men who murder those of the same gender.
title: Treibhausgasneutralität und die Ziele der natürlichen Kohlenstoffsenke sind noch erreichbar
Creators: name: Purr, Katja
name: Voß-Stemping, Judith
name: Schultz, Karlotta
Publisher: name: Umweltbundesamt
Year: 2025
Subjects: subject: Treibhausgasneutralität
subject: Senken
subject: natürlicher Klimaschutz
subject: Technische Senken
subject: Negativemissionen
subject: 500 Naturwissenschaften und Mathematik
subject: Klima | Energie
subject: Climate | Energy

description: Aktuelle sektorübergreifende Szenarienarbeiten des Umweltbundesamtes zeigen, dass mit einer ambitionierten Minderungsstrategie Treibhausgasneutralität bis 2045 theoretisch noch ohne die Technologie der Kohlenstoffabscheidung und -einlagerung möglich ist. Werden ergänzend technische Maßnahmen in die Transformation integriert, werden robust Treibhausgasneutralität und schon 2045 Netto-Negativemissionen ermöglicht. Ein moderater Hochlauf der technischen Negativemissionen in einer Größenordnung von -6 Mio. t CO2 bis 2045 scheint angemessen. Die festgelegten Ziele für den Sektor ⁠⁠LULUCF⁠ können in 2045 noch erreicht werden. Gelingen kann dies mit einer Offensive für Wälder, Moorböden und Agroforst, die zu den wichtigsten Elementendes Instrumenten- und Maßnahmenspektrums zählen.
Link Node: A Method to Characterize the Chain Topology of Intrinsically Disordered Proteins
Creators: name: Lang, Danqi
name: Chen, Le
name: Li, Jingyuan
Publisher: name: arXiv
Year: 2024
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: It is well-known that intrinsically disordered proteins (IDP) are highly dynamic, which is related to their functionality in various biological processes. However, the characterization of the intricate structures of IDP has been a challenge. Here, we analyze the chain topology of IDPs to characterize their conformations, in combination with molecular dynamics simulation (MD). We systematically compute the Gauss Linking Number ($GLN$) between segments in IDP, and show that the resulting GLN Map can effectively depict an unconventional structure -- physical link, i.e., the entanglement between two segments. The crossing points of physical links are further identified and denoted as Link Nodes. We show that the probability distribution of Link Nodes is highly heterogeneous and there are certain residues that largely affect the chain topology of IDP. Moreover, the structural fluctuations of the vicinity of these residues are largely suppressed, i.e., Link Node provides useful information about the topological constraint imposed on the residues during the conformation fluctuations of IDP. We further reveal that the evolution of the chain topology is considerably slow (with a timescale of hundreds of nanoseconds), which is distinct from the flipping of residue contact.
Time-resolved measurement of acoustic density fluctuations using a phase-shifting Mach-Zehnder interferometer
Creators: name: Shoji, Eita
name: Maddi, Anis
name: Penelet, Guillaume
name: Biwa, Tetsushi
Publisher: name: arXiv
Year: 2024
Subjects: subject: Applied Physics (physics.app-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Phase-shifting interferometry is one of the optical measurement techniques that improves accuracy and resolution by incorporating a controlled phase shift into conventional optical interferometry. In this study, a four-step phase-shifting interferometer is developed to measure the spatio-temporal distribution of acoustic density oscillations of the gas next to a rigid plate. The experimental apparatus consists of a polarizing Mach-Zehnder interferometer with a polarization camera capable of capturing four polarization directions in one shot image and it is used to measure the magnitude and the phase of density fluctuations through a duct of rectangular cross-section connected to a loudspeaker. The results are compared with the well-established thermoacoustic theory describing the thermal coupling between acoustic oscillations and rigid boundaries, and the results show a very good agreement for various ratios of the (frequency-dependent) thermal boundary layer thickness to the plate spacing. This measurement technique could be advantageously employed to analyze more complex heat transfer processes involving the coupling of acoustic oscillations with rigid boundaries.
description: The following article has been accepted by the Journal of Acoustical Society of America (JASA). After it is published, it will be found at https://pubs.aip.org/asa/jasa
Supplementary document for High selectivity and reversible Eu3+ sensor based on GSH-capped AgZnInS QDs - 6198624.pdf
Creators: name: zixin, fang
name: Huang, Yan
name: yun, zhang
name: Zhao, Feng
name: Li, Feng
name: Zhu, Quanshui
name: Jiang, Guangyu
Publisher: name: Optica Publishing Group
Year: 2025
Subjects: Uncategorized

description: Supplementary Material
Geochemical, mineralogical, and molecular scale speciation characterization of mine wastes from the Tar Creek Superfund Site, Tri-State Mining District, Oklahoma, U.S.A.
Creators: name: White, Sarah Jane O
name: Piatak, Nadine
name: McAleer, Ryan
name: Hayes, Sarah M
name: Schaider, Laurel A.
name: Shine, James P.
name: Seal, Robert R
name: Green, Carlin J
name: Hoppe, Darryl A
Publisher: name: U.S. Geological Survey
Year: 2022
Subjects: Germanium, Hemimorphite, Sphalerite, Mine Wastes

description: Germanium (Ge) is an increasingly important element used in critical technologies for communication, defense, and computing. However, Ge is scarce, and there is no United States (U.S.) primary production. Additionally, the environmental behavior of Ge is poorly understood. Germanium does not generally form its own minerals, but is instead recovered as a byproduct of zinc mining or of coal fly ash. It has been deemed critical by the U.S. and globally, and investigations of its geologic concentration, environmental fate and transport, and potential for recovery are crucial for maintaining a sustainable supply. A relevant study site to explore questions of environmental behavior and the potential to recover Ge from mine wastes is the Tar Creek Superfund site in Oklahoma, U.S., a district historically mined for Zn and Pb, with elevated Ge concentrations. Here we present data on the concentration, mineral hosts, and speciation of germanium in mine wastes from this site.
Non-Markovian skin effect
Creators: name: Kuo, Po-Chen
name: Yang, Shen-Liang
name: Lambert, Neill
name: Lin, Jhen-Dong
name: Huang, Yi-Te
name: Nori, Franco
name: Chen, Yueh-Nan
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The Liouvillian skin effect and the non-Hermitian skin effect have both been used to explain the localization of eigenmodes near system boundaries, though the former is arguably more accurate in some regimes due to its incorporation of quantum jumps. However, these frameworks predominantly focus on weak Markovian interactions, neglecting the potentially crucial role of memory effects. To address this, we investigate, utilizing the powerful hierarchical equations of motion method, how a non-Markovian environment can modify the Liouvillian skin effect. We demonstrate that a non-Markovian environment can induce a ``thick skin effect", where the skin mode broadens and shifts into the bulk. {We further identify that the skin-mode quantum coherence can only be generated when the coupling contains counter-rotating terms}, leading to the coherence-delocalization and oscillatory relaxation with a characteristic linear scaling with system size. Remarkably, both the skin-mode and steady-state coherence exhibit resistance to decoherence from additional environmental noise. These findings highlight the profound impact of system-bath correlations on relaxation and localization, revealing unique phenomena beyond conventional Markovian approximations.
description: 15 pages, 9 figures
$^{13}$C Hyperpolarization with Nitrogen-Vacancy Centers in Micro- and Nanodiamonds for Sensitive Magnetic Resonance Applications
Creators: name: Blinder, Rémi
name: Mindarava, Yuliya
name: Korzeczek, Martin
name: Marshall, Alastair
name: Glöckler, Felix
name: Nothelfer, Steffen
name: Kienle, Alwin
name: Laube, Christian
name: Knolle, Wolfgang
name: Jentgens, Christian
name: Plenio, Martin B.
name: Jelezko, Fedor
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Nuclear hyperpolarization is a known method to enhance the signal in nuclear magnetic resonance (NMR) by orders of magnitude. The present work addresses the $^{13}$C hyperpolarization in diamond micro- and nanoparticles, using the optically-pumped nitrogen-vacancy center (NV) to polarize $^{13}$C spins at room temperature. Consequences of the small particle size are mitigated by using a combination of surface treatment improving the $^{13}$C relaxation ($T_1$) time, as well as that of NV, and applying a technique for NV illumination based on a microphotonic structure. Monitoring the light-induced redistribution of the NV spin state populations with electron paramagnetic resonance, a strong polarization enhancement for the NV spin state is observed in a narrow spectral region corresponding to about 4\% of these defect centers. By combining adjustments to the `PulsePol' sequence and slow sample rotation, the NV-$^{13}$C polarization transfer rate is improved further. The hyperpolarized $^{13}$C NMR signal is observed in particles of 2 $μ$m and 100 nm median sizes, with enhancements over the thermal signal (at 0.29 T magnetic field), of 1500 and 940, respectively. The present demonstration of room-temperature hyperpolarization anticipates the development of agents based on nanoparticles for sensitive magnetic resonance applications.
description: 49 pages, 29 figures (main text: 15 pages, 5 figures and Supporting Information: 34 pages, 24 figures) Uploaded new version on March 24th, 2024: corrected affiliations, some typos/formatting
Understanding urban climate-resilient cyclists: A solution to reducing individual motorized transport
Creators: name: Pitois, Louis
name: Chevance, Guillaume
name: Green, James
name: Benmarhnia, Tarik
Publisher: name: University of Limerick
Year: 2025
Subjects: classificationCode: 42
subject: Health sciences
subject: FOS: Health sciences

description: Climate change has increasingly adverse effects on cycling, especially in relation to climate-sensitive hazards such as heatwaves, natural disasters, and air pollution [1]. Modal shifting from cars to bikes is an evidence-based strategy for reducing local greenhouse gas emissions and air pollution in cities [2]. The development of connected and secure cycling infrastructure and improved accessibility to cycle-sharing programs have contributed to an increase in daily cycling trips. Bike supportive policies have further boosted cycling in the US, China, Europe, South America, and Asia [3]. For instance, Amsterdam saw a 15% increase in cycling following infrastructure improvements, while Sevilla and Bogotá had 10% gains, and Vancouver and Paris saw smaller (~5%) increases [3]. Despite the progress, climate change and climate-sensitive hazards increasingly threaten bike use in cities [1]. Here, we summarize current evidence on the effects of heatwaves, natural disasters, and air pollution on urban cycling, highlighting the critical threat to its use. Investigating conditions facilitating the climate resilience of cyclists, defined as their ability to bounce back from climate-sensitive hazards, is essential [4].
New variants of arithmetic quantum ergodicity
Creators: name: Humphries, Peter
name: Thorner, Jesse
Publisher: name: arXiv
Year: 2024
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: We establish two new variants of arithmetic quantum ergodicity. The first is for self-dual $\mathrm{GL}_2$ Hecke-Maass newforms over $\mathbb{Q}$ as the level and Laplace eigenvalue vary jointly. The second is a nonsplit analogue wherein almost all restrictions of Hilbert (respectively Bianchi) Hecke-Maass cusp forms to the modular surface dissipate as their Laplace eigenvalues grow.
description: 28 pages. arXiv admin note: substantial text overlap with arXiv:2103.05634
Symmetries & Correlations in Continous Time Crystals
Creators: name: Mukherjee, Ankan
name: Ibrahim, Yeshma
name: Hajdušek, Michal
name: Vinjanampathy, Sai
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We demonstrate the inadequacy of mean-field theory by exploring the effects of initial state correlations on the dynamics of continuous time crystals, necessitating higher-order cumulant expansions. We exemplify this using cat states for which the mean field fails to predict a phase transition but the second order cumulant expansion theory captures it. Motivated by the symmetries of the system, we choose a truncation of cumulant theory at the second-order and demonstrate that it is sufficient to accurately capture the dynamical features overlooked by the mean-field.
description: 9 pages, comments welcome
Input-to-State Stability of Newton Methods for Generalized Equations in Nonlinear Optimization
Creators: name: Cunis, Torbjørn
name: Kolmanovsky, Ilya
Publisher: name: arXiv
Year: 2024
Subjects: subject: Optimization and Control (math.OC)
subject: Systems and Control (eess.SY)
subject: FOS: Mathematics
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: We show that Newton methods for generalized equations are input-to-state stable with respect to disturbances such as due to inexact computations. We then use this result to obtain convergence and robustness of a multistep Newton-type method for multivariate generalized equations. We demonstrate the usefulness of the results with other applications to nonlinear optimization. In particular, we provide a new proof for (robust) local convergence of the augmented Lagrangian method.
description: Submitted to 2024 Conference on Decision and Control
Examining Attachment Style in Hookup Culture : The Societal Normalization of Trauma-Based Partner Selection
Creators: name: Ardelean, Aida
Publisher: name: The University of British Columbia
Year: 2022

description: Based on the theory of attachment, people are going to love someone the way they themselves have experienced love. As young adults finish their studies and enter their careers, there is a social expectation for many to find a lasting relationship and settle down. If young adults developed an insecure attachment style during childhood, this could lead to the possible recreation of intergenerational trauma when seeking a long-term partner. Much has been written about hookup culture on university campuses and the impacts that it has on mental and emotional health (i.e. Garcia 2012, Machia 2020, etc.), but less has been written on whether hookup culture impacts or is a product of one's attachment. My project aims to explore how the attachment styles developed in childhood contribute to participation in hookup culture during university. Twenty participants who identified as current or previous students attending a Canadian university and residing in British Columbia were recruited to participate in this study. A series of semi-structured hour-long interviews were conducted following the completion of a preliminary survey. These surveys examined participants attachment styles and self-esteem levels. Participants were also asked a series of questions about their experiences with hookup culture and casual sex. It was found that participants scoring high on anxiety and avoidance are more likely to experience lower levels of self-esteem than participants scoring low on anxiety. However, participants scoring high on avoidance experience higher levels of regret than participants scoring low on avoidance. Further, individuals that had a fearful avoidant attachment were more likely to experience feelings for a casual hookup partner. Finally, the study found that participants with fearful avoidant attachment were more likely to be single. However, participants with secure attachment were more likely, on average, to have a friend with benefits or one night stand than insecure participants. [This project file was replaced on January 6, 2023]
Secure Full-Duplex Communication via Movable Antennas
Creators: name: Ding, Jingze
name: Zhou, Zijian
name: Wang, Chenbo
name: Li, Wenyao
name: Lin, Lifeng
name: Jiao, Bingli
Publisher: name: arXiv
Year: 2024
Subjects: subject: Information Theory (cs.IT)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: This paper investigates physical layer security (PLS) in a movable antenna (MA)-assisted full-duplex (FD) system. In this system, an FD base station (BS) with multiple MAs for transmission and reception provides services for an uplink (UL) user and a downlink (DL) user. Each user operates in half-duplex (HD) mode and is equipped with a single fixed-position antenna (FPA), in the presence of a single-FPA eavesdropper (Eve). To ensure secure communication, artificial noise (AN) is transmitted to obstruct the interception of Eve. The objective of this paper is to maximize the sum secrecy rate (SSR) of the UL and DL users by jointly optimizing the beamformers of the BS and the positions of MAs. This paper also proposes an alternating optimization (AO) method to address the non-convex problem, which decomposes the optimization problem into three subproblems and solves them iteratively. Simulation results demonstrate a significant performance gain in the SSR achieved by the proposed scheme compared to the benchmark schemes.
description: The paper has been accepted by Globecom2024
Review on Quantum Walk Computing: Theory, Implementation, and Application
Creators: name: Qiang, Xiaogang
name: Ma, Shixin
name: Song, Haijing
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Classical random walk formalism shows a significant role across a wide range of applications. As its quantum counterpart, the quantum walk is proposed as an important theoretical model for quantum computing. By exploiting the quantum effects such as superposition, interference and entanglement, quantum walks and their variety have been extensively studied for achieving beyond classical computing power, and they have been broadly used in designing quantum algorithms in fields ranging from algebraic and optimization problems, graph and network analysis, to quantum Hamiltonian and biochemical process simulations, and even further quantum walk models have proven their capabilities for universal quantum computation. Compared to the conventional quantum circuit models, quantum walks show a feasible path for implementing application-specific quantum computing in particularly the noisy intermediate-scale quantum era. Recently remarkable progress has been achieved in implementing a wide variety of quantum walks and quantum walk applications, demonstrating the great potential of quantum walks. In this review, we provide a thorough summary of quantum walks and quantum walk computing, including aspects of quantum walk theories and characteristics, advances in their physical implementations and the flourishingly developed quantum walk computing applications. We also discuss the challenges facing quantum walk computing, toward realizing a practical quantum computer in the near future.
description: 61 pages, 8 figures
การมีส่วนร่วมของประชาชนในการป้องกันปัญหาอุทกภัยในพื้นที่ลุ่มน้ำยมตอนล่าง
Creators: name: ปิยะดา วชิระวงศกร
name: ณัฏฐิณี ดีแท้
Publisher: name: คณะบริหารการพัฒนาสิ่งแวดล้อม สถาบันบัณฑิตพัฒนบริหารศาสตร์
Year: 2016
Subjects: การมีส่วนร่วมของประชาชน, ลุ่มน้ำยม, อุทกภัย

description: 2, 12, วารสารการจัดการสิ่งแวดล้อม
Local Jordan-Wigner transformations on the torus
Creators: name: O'Brien, Oliver
name: Lootens, Laurens
name: Verstraete, Frank
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We present a locality preserving unitary mapping from fermions to qubits on a 2D torus whilst accounting for the mapping of topological sectors. Extending the work of Shukla et al. [Phys. Rev. B 101, 155105], an explicit intertwiner is constructed in the form of a projected entangled pair operator. By encoding the information about the charge sectors (and if applicable the twisted boundary conditions) in ancillary qubit(s), the intertwiner becomes a unitary operator which exchanges boundary conditions and charge sectors.
description: 5 pages, many figures, comments welcome
แนวทางการพัฒนาเมืองอุตสาหกรรมเชิงนิเวศในพื้นที่เทศบาลเมืองมาบตาพุด
Creators: name: สมชาย มุ้ยจีน
Publisher: name: คณะบริหารการพัฒนาสิ่งแวดล้อม สถาบันบัณฑิตพัฒนบริหารศาสตร์
Year: 2016
Subjects: การพัฒนาอย่างยั่งยืน, มาบตาพุด, เมืองอุตสาหกรรมเชิงนิเวศ

description: 2, 12, วารสารการจัดการสิ่งแวดล้อม
Theory of time-bin entangled photons from quantum emitters
Creators: name: Bracht, Thomas K.
name: Kappe, Florian
name: Cygorek, Moritz
name: Seidelmann, Tim
name: Karli, Yusuf
name: Remesh, Vikas
name: Weihs, Gregor
name: Axt, Vollrath Martin
name: Reiter, Doris E.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Entangled photon pairs form the foundation for many applications in the realm of quantum communication. For fiber-optic transfer of entangled photon pairs, time-bin encoding can potentially offer an improved stability compared to polarization encoded qubits. Here, we lay the theoretical foundations to describe the measurement of time-bin entangled photons. We derive multi-time correlation functions of the time-bin encoded photon pairs, corresponding to quantum state tomographic measurements. Our theory can be the starting point to extend the simulations to include all kinds of loss or decoherence effects that apply in a specific quantum system for realistic simulation for time-bin entanglement from quantum emitters.
description: 8 pages, 3 figures
Scalable 3D molecular graphics on the web
Creators: name: Rose, Alexander
name: Bradley, Anthony
name: Valasatava, Yana
name: Duarte, Jose
name: Prlić, Andreas
name: Rose, Peter
Publisher: name: F1000Research
Year: 2016

description: The interactive visualization of very large macromolecular complexes on the web is becoming a challenging problem as experimental techniques advance at an unprecedented rate and deliver structures of increasing size. We have tackled this problem by introducing the binary and compressed Macromolecular Transmission Format (MMTF) to reduce network transfer and parsing time, and by developing NGL, a highly memory efficient and scalable WebGL­based viewer. NGL renders molecular complexes with millions of atoms interactively on desktop computers and smartphones alike, making it a tool of choice for web­based molecular visualization in research and education.
SPVLoc: Semantic Panoramic Viewport Matching for 6D Camera Localization in Unseen Environments
Creators: name: Gard, Niklas
name: Hilsmann, Anna
name: Eisert, Peter
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: In this paper, we present SPVLoc, a global indoor localization method that accurately determines the six-dimensional (6D) camera pose of a query image and requires minimal scene-specific prior knowledge and no scene-specific training. Our approach employs a novel matching procedure to localize the perspective camera's viewport, given as an RGB image, within a set of panoramic semantic layout representations of the indoor environment. The panoramas are rendered from an untextured 3D reference model, which only comprises approximate structural information about room shapes, along with door and window annotations. We demonstrate that a straightforward convolutional network structure can successfully achieve image-to-panorama and ultimately image-to-model matching. Through a viewport classification score, we rank reference panoramas and select the best match for the query image. Then, a 6D relative pose is estimated between the chosen panorama and query image. Our experiments demonstrate that this approach not only efficiently bridges the domain gap but also generalizes well to previously unseen scenes that are not part of the training data. Moreover, it achieves superior localization accuracy compared to the state of the art methods and also estimates more degrees of freedom of the camera pose. Our source code is publicly available at https://fraunhoferhhi.github.io/spvloc .
description: ECCV 2024. 24 pages, 11 figures, 8 tables. Includes paper and supplementary material