cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Digital Transformation and Service Marketing In Nigeria:  Reshaping Strategies and Enhancing Customer Engagement
Creators: name: Aniebiet, Etuk
name: Aniefiok, Okon Akpan
name: Aniekan, Eyo Awah
Publisher: name: American serial
Year: 2024
Subjects: Digital Transformation, Service Marketing Strategies, Customer Engagement, Nigeria, Digital Tools, Marketing Strategies

description: This study investigated the impact of digital transformation on service marketing strategies and customer engagement within Nigeria. Utilizing a survey research design, data were collected from 500 respondents across financial services, telecommunications, and retail sectors. Descriptive statistics, correlation analysis, regression analysis, and ANOVA were employed to analyze the data and test the hypotheses. The findings rejected the null hypotheses, indicating that digital transformation significantly reshapes service marketing strategies (H₀₁: rejected) and has a substantial influence on customer engagement (H₀₂: rejected). Digital tool usage demonstrated a strong positive correlation with customer engagement (r = 0.75, p < 0.001), and service marketing strategies were significantly affected by digital transformation (β = 0.35, p < 0.001). Additionally, financial services exhibited higher engagement compared to telecommunications and retail sectors (F = 4.23, p = 0.015). In conclusion, digital transformation is crucial for enhancing both service marketing strategies and customer engagement. It was recommended that services providers should invest in advanced digital tools, optimize marketing strategies, and address sector-specific challenges to improve customer interactions.
title: Horizon Scanning in Radiation Oncology in Australia: Considerations and Future Trends
Creators: name: Grand, Mel
Publisher: name: The Royal Australian and New Zealand College of Radiologists
Year: 2012
Subjects: subject: Radiation therapy / Oncology
subject: Oncology

description: Purpose Methods and Materials Results Conclusion Personal Information References
description: Purpose: A horizon scan is a tool to inform stakeholders about impending technological developments and innovations in a given field and the potential impact on practice. This is particularly relevant in a field such as radiation oncology that is heavily...
Local density approximation in site-occupation embedding theory
Creators: name: Senjean, Bruno
name: Tsuchiizu, Masahisa
name: Robert, Vincent
name: Fromager, Emmanuel
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Site-occupation embedding theory (SOET) is a density-functional theory (DFT)-based method which aims at modelling strongly correlated electrons. It is in principle exact and applicable to model and quantum chemical Hamiltonians. The theory is presented here for the Hubbard Hamiltonian. In contrast to conventional DFT approaches, the site (or orbital) occupations are deduced in SOET from a partially-interacting system consisting of one (or more) impurity site(s) and non-interacting bath sites. The correlation energy of the bath is then treated implicitly by means of a site-occupation functional. In this work, we propose a simple impurity-occupation functional approximation based on the two-level (2L) Hubbard model which is referred to as two-level impurity local density approximation (2L-ILDA). Results obtained on a prototypical uniform 8-site Hubbard ring are promising. The extension of the method to larger systems and more sophisticated model Hamiltonians is currently in progress.
description: 27 pages, 11 figures
Maier, Gerhard (Hrsg.): Der Kanon der Bibel
Creators: name: Bayer, Hans F.
Publisher: name: Jahrbuch für evangelikale Theologie
Year: 2025

description: 1822955971
description: Jahrbuch für evangelikale Theologie, V. 5 (1991): Jahrbuch für evangelikale Theologie, Band 5
Evidence that most type 1 AGN are reddened by dust in the host ISM
Creators: name: Baron, Dalya
name: Stern, Jonathan
name: Poznanski, Dovi
name: Netzer, Hagai
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The typical optical-UV continuum slopes observed in many type 1 AGN are redder than expected from thin accretion disk models. A possible resolution to this conundrum is that many AGN are reddened by dust along the line of sight. To explore this possibility, we stack 5000 SDSS AGN with luminosity L~10^45erg/s and redshift z~0.4 in bins of optical continuum slope alpha_opt and width of the broad H$β$ emission line. We measure the EW of the NaID absorption feature in each stacked spectrum. We find a linear relation between alpha_opt and EW(NaID), such that EW(NaID) increases as alpha_opt becomes redder. In the bin with the smallest H$β$ width, objects with the bluest slopes that are similar to accretion disk predictions are found to have EW(NaID)=0, supporting the line-of-sight dust hypothesis. This conclusion is also supported by the dependence of the $Hα/Hβ$ line ratio on alpha_opt. The implied relationship between alpha_opt and dust reddening is given by E(B-V)~0.2(-0.1-alpha_opt), and the implied reddening of a typical type 1 AGN with alpha_opt=-0.5 is E(B-V)~0.08mag. Photoionization calculations show that the dusty gas responsible for reddening is too ionized to produce the observed features. Therefore, we argue that the sodium absorption arises in regions of the host ISM which are shielded from the AGN radiation, and the correlation with alpha_opt arises since ISM columns along shielded and non-shielded sightlines are correlated. This scenario is supported by the similarity of the E(B-V)-NaID relation implied by our results with the relation in the Milky-Way found by previous studies.
description: accepted for publication in ApJ
title: Hypofractionated Stereotactic Radiotherapy for Pituitary Tumours and Skull Base Meningioma Involving the Cavernous Sinus
Creators: name: Van Der Geld, Ylanga
Publisher: name: The Royal Australian and New Zealand College of Radiologists
Year: 2012
Subjects: subject: Oncology
subject: Neuroradiology brain
subject: MR
subject: CT
subject: Radiation therapy / Oncology
subject: Radiation effects
subject: Neoplasia

description: Purpose Methods and Materials Results Conclusion Personal Information References
description: Purpose: Tumour invasion or compression of the cavernous sinus (CS) can cause deficits in the closely related optic, oculomotor, trochlear, trigeminal and abducens nerves. Thisabstract addresses the effectiveness ofhypofractionated stereotactic radiotherapy...
Hybrid controlled-SUM gate with one superconducting qutrit and one cat-state qutrit and application in hybrid entangled state preparation
Creators: name: Su, Qi-Ping
name: Zhang, Yu
name: Bin, Liang
name: Yang, Chui-Ping
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Compared with a qubit, a qudit (i.e., $d$-level or $d$-state quantum system) provides a larger Hilbert space to store and process information. On the other hand, qudit-based hybrid quantum computing usually requires performing hybrid quantum gates with qudits different in their nature or in their encoding format. In this work, we consider the qutrit case, i.e., the case for a qudit with $d$=3. We propose a simple method to realize a hybrid quantum controlled-SUM gate with one superconducting (SC) qutrit and a cat-state qutrit. This gate plus single-qutrit gates form a universal set of ternary logic gates for quantum computing with qutrits. Our proposal is based on circuit QED and operates essentially by employing a SC ququart (a four-level quantum system) dispersively coupled to a microwave cavity. The gate implementation is quite simple because it only requires a single basic operation. Neither classical pulse nor measurement is needed. The auxiliary higher energy level of the SC ququart is virtually excited during the gate operation, thus decoherence from this level is greatly suppressed. As an application of this gate, we discuss the generation of a hybrid maximally-entangled state of one SC qutrit and one cat-state qutrit. We further analyze the experimental feasibility of creating such hybrid entangled state in circuit QED. This proposal is quite general and can be extended to accomplish the same task in a wide range of physical system, such as a four-level natural or artificial atom coupled to an optical or microwave cavity.
description: 11 pages, 4 figures
title: Utilisation of endorectal balloons in post-prostatectomy radiotherapy: Logistical implications for a radiotherapy department
Creators: name: Ko, Rebecca
Publisher: name: The Royal Australian and New Zealand College of Radiologists
Year: 2012
Subjects: subject: Biological effects
subject: Radiation therapy / Oncology
subject: CT
subject: Pelvis

description: Purpose Methods and Materials Results Conclusion Personal Information References
description: Purpose: Endorectal balloons (ERBs) in post-prostatectomy radiotherapy have the potential to improve rectal dosimetry, and enhance target volume and internal organ stability. This study assessed the implications of utilising ERBs on the time taken for...
Single-step implementation of a hybrid controlled-NOT gate with one superconducting qubit simultaneously controlling multiple target cat-state qubits
Creators: name: Su, Qi-Ping
name: Zhang, Yu
name: Yang, Chui-Ping
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Hybrid quantum gates have recently drawn considerable attention. They play significant roles in connecting quantum information processors with qubits of different encoding and have important applications in the transmission of quantum states between a quantum processor and a quantum memory. In this work, we propose a single-step implementation of a multi-target-qubit controlled-NOT gate with one superconducting (SC) qubit simultaneously controlling $n$ target cat-state qubits. In this proposal, the gate is implemented with $n$ microwave cavities coupled to a three-level SC qutrit. The two logic states of the control SC qubit are represented by the two lowest levels of the qutrit, while the two logic states of each target cat-state qubit are represented by two quasi-orthogonal cat states of a microwave cavity. This proposal operates essentially through the dispersive coupling of each cavity with the qutrit. The gate realization is quite simple because it requires only a single-step operation. There is no need of applying a classical pulse or performing a measurement. The gate operation time is independent of the number of target qubits, thus it does not increase as the number of target qubits increases. Moreover, because the third higher energy level of the qutrit is not occupied during the gate operation, decoherence from the qutrit is greatly suppressed. As an application of this hybrid multi-target-qubit gate, we further discuss the generation of a hybrid Greenberger-Horne-Zeilinger (GHZ) entangled state of SC qubits and cat-state qubits. As an example, we numerically analyze the experimental feasibility of generating a hybrid GHZ state of one SC qubit and three cat-state qubits within present circuit QED technology.
description: 15 pages, 7 figures
Real-time 3D Tracking of Articulated Tools for Robotic Surgery
Creators: name: Ye, Menglong
name: Zhang, Lin
name: Giannarou, Stamatia
name: Yang, Guang-Zhong
Publisher: name: arXiv
Year: 2016
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: In robotic surgery, tool tracking is important for providing safe tool-tissue interaction and facilitating surgical skills assessment. Despite recent advances in tool tracking, existing approaches are faced with major difficulties in real-time tracking of articulated tools. Most algorithms are tailored for offline processing with pre-recorded videos. In this paper, we propose a real-time 3D tracking method for articulated tools in robotic surgery. The proposed method is based on the CAD model of the tools as well as robot kinematics to generate online part-based templates for efficient 2D matching and 3D pose estimation. A robust verification approach is incorporated to reject outliers in 2D detections, which is then followed by fusing inliers with robot kinematic readings for 3D pose estimation of the tool. The proposed method has been validated with phantom data, as well as ex vivo and in vivo experiments. The results derived clearly demonstrate the performance advantage of the proposed method when compared to the state-of-the-art.
description: This paper was presented in MICCAI 2016 conference, and a DOI was linked to the publisher's version
title: Comparison of rectal and bladder ICRU point doses to the GEC ESTRO volumetric doses in Cervix cancer
Creators: name: Govindarajulu, Geetha
Publisher: name: The Royal Australian and New Zealand College of Radiologists
Year: 2012
Subjects: subject: Radiation therapy / Oncology
subject: Dosimetry
subject: CT
subject: Genital / Reproductive system female
subject: Neoplasia

description: Purpose Methods and Materials Results Conclusion Personal Information References
description: Purpose: To compare the ICRU point doses to the GEC-ESTRO recommended volume doses for rectum and bladder in HDR brachytherapy for cervix...
The Operator Product Expansion Beyond Leading Order for Two-Component Fermions
Creators: name: Emmons, Samuel B.
name: Kang, Daekyoung
name: Platter, Lucas
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We consider a homogeneous, balanced gas of strongly interacting fermions in two spin states interacting through a large scattering length. Finite range corrections are needed for a quantitative description of data which experiments and numerical simulations have provided. We use a perturbative field theoretical framework and a tool called the Operator Product Expansion (OPE), which together allow for the expression of finite range corrections to the universal relations and momentum distribution. Using the OPE, we derive the $1/k^6$ part of the momentum tail, which is related to the sum of the derivative of the energy with respect to the finite range and the averaged kinetic energy of opposite spin pairs. By comparing the $1/k^4$ term and the $1/k^6$ correction in the momentum distribution to provided Quantum Monte Carlo (QMC) data, we show that including the $1/k^6$ part offers marked improvements. Our field theoretical approach allows for a clear understanding of the role of the scattering length and finite effective range in the universal relations and the momentum distribution.
description: 13 pages, 7 figure, 4 tables, Eqs.(13), (15), and (59) are corrected with an additional term called C', published version
Stochastic graph models with phase type distributed edge weights
Creators: name: Dohndorf, Iryna
Publisher: name: Technische Universität Dortmund
Year: 2017
Subjects: subject: Stochastic graph models
subject: Correlated edge weights
subject: CTMDPs
subject: Phase type distributions
subject: 004
subject: Zufallsgraph
subject: Markov-Prozess

description: Most stochastic shortest path problems include an assumption of independent weights at edges. For many practical problems, however, this assumption is often violated indicating an increased number of applications with stochastic graphs where edge weights follow a distribution that has a possible correlation with weights at adjacent edges. Real-world information in conjunction with existing dependencies in networks can significantly contribute to the computation of the optimal solution to stochastic shortest path problems. For example, the knowledge of a congestion arising on the current road results in a better traveler's choice of an alternative route. Markov dependability models describing the correlation in the length of availability and unavailability intervals of technical components could support optimal decisions to avoid high maintenance costs. In this thesis, an innovative model class for stochastic graphs with correlated weights at the edges is introduced. In the developed model edge weights are modeled by PH distributions and correlations between them can be encoded using transfer matrices for PH distributions of adjacent edge weights. Stochastic graph models including correlations are important to describe many practical situations where the knowledge about system parameters like traveling times and costs is incomplete or changes over time. Based on PH-Graphs efficient solution methods for Stochastic Shortest Path Problems with correlations can be developed. Competing paths from origin to destination in a PH-Graph can be interpreted as CTMDPs. Optimal solutions to different shortest path problems can be obtained from finding an optimal policy in a CTMDP. For example, the problem of finding the reliable shortest path to maximize the probability of arriving on time under realistic assumptions can be efficiently treated. Formulations of shortest path problems with correlations as well as solution methods from the CTMDP field are presented. We address the parameterization of PH-Graphs based on measured data from simulated systems. Fitting methods for parameterization of transfer matrices are adopted from MAP fitting approaches. Also similarity transformations for order 2 acyclic PHDs in composition are considered. Our experiments and examples show that correlation has a significant impact on shortest paths in stochastic weighted networks and that our solution methods are effective and usable in online decision senarios.
Delving into the Continuous Domain Adaptation
Creators: name: Xu, Yinsong
name: Jiang, Zhuqing
name: Men, Aidong
name: Liu, Yang
name: Chen, Qingchao
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Existing domain adaptation methods assume that domain discrepancies are caused by a few discrete attributes and variations, e.g., art, real, painting, quickdraw, etc. We argue that this is not realistic as it is implausible to define the real-world datasets using a few discrete attributes. Therefore, we propose to investigate a new problem namely the Continuous Domain Adaptation (CDA) through the lens where infinite domains are formed by continuously varying attributes. Leveraging knowledge of two labeled source domains and several observed unlabeled target domains data, the objective of CDA is to learn a generalized model for whole data distribution with the continuous attribute. Besides the contributions of formulating a new problem, we also propose a novel approach as a strong CDA baseline. To be specific, firstly we propose a novel alternating training strategy to reduce discrepancies among multiple domains meanwhile generalize to unseen target domains. Secondly, we propose a continuity constraint when estimating the cross-domain divergence measurement. Finally, to decouple the discrepancy from the mini-batch size, we design a domain-specific queue to maintain the global view of the source domain that further boosts the adaptation performances. Our method is proven to achieve the state-of-the-art in CDA problem using extensive experiments. The code is available at https://github.com/SPIresearch/CDA.
description: Accepted by ACM MM22
Reading off the non-geometric scalar potentials via topological data of the Calabi Yau manifolds
Creators: name: Shukla, Pramod
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In the context of studying the 4D effective potentials of type IIB non-geometric flux compactifications, this article has a twofold goal. First, we present a modular invariant symplectic rearrangement of the tree level non-geometric scalar potential arising from a flux superpotential which includes the S-dual pairs of non-geometric fluxes $(Q, P)$, the standard NS-NS and RR three-form fluxes $(F_3, H_3)$ and the geometric flux ($ω$). This `symplectic formulation' is valid for arbitrary numbers of Kähler moduli, and the complex structure moduli which are implicitly encoded in a set of symplectic matrices. In the second part, we further explicitly rewrite all the symplectic ingredients in terms of saxionic and axionic components of the complex structure moduli. The same leads to a compact form of the generic scalar potential being explicitly written out in terms of all the real moduli/axions. Moreover, the final form of the scalar potential needs only the knowledge of some topological data (such as hodge numbers and the triple intersection numbers) of the compactifying (CY) threefolds and their respective mirrors. Finally, we demonstrate how the same is equivalent to say that, for a given concrete example, various pieces of the scalar potential can be directly read off from our generic proposal, without the need of starting from the Kähler- and super-potentials.
description: version 3: 46 pages; slight rewording in the title, improved overall presentation with lengthy eqns. shifted to two newly added appendices B and D, one more appendix A listing the symbols and notations added; to appear in PRD
Surface Sensitive Raman Response of Metal-Supported Monolayer MoS$_2$
Creators: name: Tumino, Francesco
name: Tosoni, Sergio
name: D'Agosta, Paolo
name: Russo, Valeria
name: Bottani, Carlo Enrico
name: Bassi, Andrea Li
name: Casari, Carlo Spartaco
Publisher: name: arXiv
Year: 2025
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The Raman spectrum of monolayer (ML) MoS$_2$ is remarkably affected by the interaction with metals. In this work we studied ML-MoS$_2$ supported by the Ag(111) and Ag(110) surfaces by using a combined experimental and theoretical approach. The MoS$_2$ layer was directly grown on atomically clean Ag(111) and Ag(110) surfaces by pulsed laser deposition, followed by in-situ thermal annealing under ultra-high vacuum conditions. The morphology and structure of the two systems were characterized in-situ by scanning tunneling microscopy, providing atomic-scale information on the relation between the MoS$_2$ lattice and the underlying surface. Raman spectroscopy revealed differences between the two MoS$_2$-metal interfaces, especially concerning the behavior of the out-of-plane $A'_1$ vibrational mode, which splits into two contributions on Ag(110). The metal-induced effects on MoS$_2$ vibrational modes are further evidenced by transferring MoS$_2$ onto a more inert substrate (SiO$_2$/Si), where the MoS$_2$ Raman response displays a more ``freestanding-like'' behavior. The experimental data were interpreted with the support of ab-initio calculations of the vibrational modes, which provided insight into the effect of interface properties, such as strain and out-of-plane distortion. Our results highlight the influence of the interaction with metals on MoS$_2$ vibrational properties, and show the high sensitivity of MoS$_2$ Raman modes to the surface structure of the supporting metal.
description: This document is the unedited Author's version of a Submitted Work that was subsequently accepted for publication in The Journal of Physical Chemistry C, copyright \c{opyright} 2025 American Chemical Society after peer review. To access the final edited and published work see https://doi.org/10.1021/acs.jpcc.4c06548
Nondestructive Probing of Means, Variances, and Correlations of Ultracold-Atomic-System Densities via Qubit Impurities
Creators: name: Elliott, Thomas J.
name: Johnson, Tomi H.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show how impurity atoms can measure moments of ultracold atomic gas densities, using the example of bosons in a one-dimensional lattice. This builds on a body of work regarding the probing of systems by measuring the dephasing of an immersed qubit. We show this dephasing is captured by a function resembling characteristic functions of probability theory, of which the derivatives at short times reveal moments of the system operator to which the qubit couples. For a qubit formed by an impurity atom, in a system of ultracold atoms, this operator can be the density of the system at the location of the impurity, and thus, means, variances, and correlations of the atomic densities are accessible.
description: 6 pages, 3 figures
Robust Image Descriptors for Real-Time Inter-Examination Retargeting in Gastrointestinal Endoscopy
Creators: name: Ye, Menglong
name: Johns, Edward
name: Walter, Benjamin
name: Meining, Alexander
name: Yang, Guang-Zhong
Publisher: name: arXiv
Year: 2016
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: For early diagnosis of malignancies in the gastrointestinal tract, surveillance endoscopy is increasingly used to monitor abnormal tissue changes in serial examinations of the same patient. Despite successes with optical biopsy for in vivo and in situ tissue characterisation, biopsy retargeting for serial examinations is challenging because tissue may change in appearance between examinations. In this paper, we propose an inter-examination retargeting framework for optical biopsy, based on an image descriptor designed for matching between endoscopic scenes over significant time intervals. Each scene is described by a hierarchy of regional intensity comparisons at various scales, offering tolerance to long-term change in tissue appearance whilst remaining discriminative. Binary coding is then used to compress the descriptor via a novel random forests approach, providing fast comparisons in Hamming space and real-time retargeting. Extensive validation conducted on 13 in vivo gastrointestinal videos, collected from six patients, show that our approach outperforms state-of-the-art methods.
description: This paper was presented in MICCAI 2016 conference, and a DOI was linked to the publisher's version
Haacker, Klaus und Hempelmann, Heinzpeter: Hebraica Veritas
Creators: name: Siebenthal, Heinrich Von
Publisher: name: Jahrbuch für evangelikale Theologie
Year: 2025

description: 1822955181
description: Jahrbuch für evangelikale Theologie, V. 5 (1991): Jahrbuch für evangelikale Theologie, Band 5
Decay of near-critical currents in superconducting nanowires
Creators: name: Khlebnikov, Sergei
Publisher: name: arXiv
Year: 2016
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We consider decay of supercurrent via phase slips in a discrete one-dimensional superconductor (a chain of nodes connected by superconducting links), aiming to explain the experimentally observed power-3/2 scaling of the activation barrier in nanowires at currents close to the critical. We find that, in this discrete model, the power-3/2 scaling holds for both long and short wires even in the presence of bulk superconducting leads, despite the suppression of thermal fluctuations at the ends. We also consider decay via tunneling (quantum phase slips), which becomes important at low temperatures. We find numerically the relevant Euclidean solutions (periodic instantons) and determine the scaling of the tunneling exponent near the critical current. The scaling law is power-5/4, different from that of the thermal activation exponent.
description: 13 pages, 4 figures; v2: minor changes, published in Phys. Rev. B
Hörster, Gerhard: Markenzeichen "bibeltreu"
Creators: name: Bayer, Hans F.
Publisher: name: Jahrbuch für evangelikale Theologie
Year: 2025

description: 1822954533
description: Jahrbuch für evangelikale Theologie, V. 5 (1991): Jahrbuch für evangelikale Theologie, Band 5
Atomically thin quantum light emitting diodes
Creators: name: Berraquero, Carmen Palacios
name: Barbone, Matteo
name: Kara, Dhiren M.
name: Chen, Xiaolong
name: Goykhman, Ilya
name: Yoon, Duhee
name: Ott, Anna K.
name: Beitner, Jan
name: Watanabe, Kenji
name: Taniguchi, Takashi
name: Ferrari, Andrea C.
name: Atatüre, Mete
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Transition metal dichalcogenides (TMDs) are optically active layered materials providing potential for fast optoelectronics and on-chip photonics. We demonstrate electrically driven single-photon emission from localised sites in tungsten diselenide (WSe2) and tungsten disulphide (WS2). To achieve this, we fabricate a light emitting diode structure comprising single layer graphene, thin hexagonal boron nitride and TMD mono- and bi-layers. Photon correlation measurements are used to confirm the single-photon nature of the spectrally sharp emission. These results present the TMD family as a platform for hybrid, broadband, atomically precise quantum photonics devices.
Collective charging of an organic quantum battery
Creators: name: Li, Jiawei
name: Wu, Ning
Publisher: name: arXiv
Year: 2025
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the collective charging of a quantum battery (QB) consisting of a one-dimensional molecular aggregate and a coupled single-mode cavity, to which we refer as an ``organic quantum battery" since the battery part is an organic material. The organic QB can be viewed as an extension of the so-called Dicke QB [D. Ferraro \emph{et al}., Phys. Rev. Lett. \textbf{120}, 117702 (2018)] by including finite exciton hopping and exciton-exciton interaction within the battery. We consider two types of normalizations of the exciton-cavity coupling when the size of the aggregate $N$ is increased: (I) The cavity length also increases to keep the density of monomers constant, (II) The cavity length does not change. Our main findings are that: (i) For fixed $N$ and exciton-cavity coupling, there exist optimal exciton-exciton interactions at which the maximum stored energy density and the maximum charging power density reach their respective maxima that both increase with increasing exciton-cavity coupling. The existence of such maxima for weak exciton-cavity coupling is argued to be due to the non-monotonic behavior of the one-exciton to two-exciton transition probability in the framework of second-order time-dependent perturbation theory. (ii) Under normalization I, no quantum advantage is observed in the scaling of the two quantities with varying $N$. Under normalization II, it is found that both the maximum stored energy density and the maximum charging power density exhibit quantum advantages compared with the Dicke QB.
description: 8 pages, 7 figures, to appear in Physical Review E
Waltke, Bruce K, und O'Connor, Michael P.: An Introduction to Biblical Hebrew
Creators: name: Siebenthal, Heinrich Von
Publisher: name: Jahrbuch für evangelikale Theologie
Year: 2025

description: 182295343X
description: Jahrbuch für evangelikale Theologie, V. 5 (1991): Jahrbuch für evangelikale Theologie, Band 5
xMLC -- A Toolkit for Machine Learning Control
Creators: name: Maceda, Guy Y. Cornejo
name: Lusseyran, François
name: Noack, Bernd R.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: xMLC is the second book of this `Machine Learning Tools in Fluid Mechanics' Series and focuses on Machine Learning Control (MLC). The objectives of this book are two-fold: First, provide an introduction to MLC for students, researchers, and newcomers on the field; and second, share an open-source code, xMLC, to automatically learn open- and closed-loop control laws directly in the plant with only a few executable commands. This presented MLC algorithm is based on genetic programming and highlights the learning principles (exploration and exploitation). The need of balance between these two principles is illustrated with an extensive parametric study where the explorative and exploitative forces are gradually integrated in the optimization process. The provided software xMLC is an implementation of MLC. It builds on OpenMLC (Duriez et al., 2017) but replaces tree-based genetic programming but the linear genetic programming framework (Brameier and Banzhaf, 2006). The latter representation is preferred for its easier implementation of multiple-input multiple-output control laws and of the genetic operators (mutation and crossover). The handling of the software is facilitated by a step by step guide that shall help new practitioners to use the code within few minutes. We also provide detailed advice in using the code for other solvers and for experiments. The code is open-source and a GitHub version is available for future updates, options and add-ons.
Two Cold Atoms in a Time-Dependent Harmonic Trap in One Dimension
Creators: name: Ebert, M.
name: Volosniev, A.
name: Hammer, H. -W.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Nuclear Theory (nucl-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We analyze the dynamics of two atoms with a short-ranged pair interaction in a one-dimensional harmonic trap with time-dependent frequency. Our analysis is focused on two representative cases: (i) a sudden change of the trapping frequency from one value to another, and (ii) a periodic trapping frequency. In case (i), the dynamics of the interacting and the corresponding non-interacting systems turn out to be similar. In the second case, however, the interacting system can behave quite differently, especially close to parametric resonance. For instance, in the regions where such resonance occurs we find that the interaction can significantly reduce the rate of energy increase. The implications for applications of our findings to cool or heat the system are also dicussed.
description: Version accepted for publication in Annalen der Physik
Neutron-proton differential transverse flow in $^{132}$Sn + $^{124}$Sn collisions at 270 MeV/nucleon
Creators: name: Huang, Xin
name: Wei, Gao-Feng
name: Zhi, Qi-Jun
name: Yang, You-Chang
name: Long, Zheng-Wen
Publisher: name: arXiv
Year: 2022
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Within a transport model, we study the neutron-proton differential transverse flow and its excitation function in central $^{132}$Sn + $^{124}$Sn collisions at 270 MeV/nucleon. To more accurately evaluate effects of the high-density behavior of symmetry energy \esym on this observable, we also consider the uncertainties of \esym around the saturation density $ρ_{0}$. It is shown that the neutron-proton differential transverse flow and its excitation function are mainly sensitive to the slope $L$ of \esym at $ρ_{0}$. However, the effects of low-density behavior of \esym on this observable should also be considered. Therefore, it is suggested that measurements of the neutron-proton differential transverse flow and its excitation function may provide useful complements to the constraints on $L$ extracted from the spectral pion ratio in S$π$RIT experiments.
description: 6 pages, 7figures.Accepted for publication in Physical Review C
Cross-domain Cross-architecture Black-box Attacks on Fine-tuned Models with Transferred Evolutionary Strategies
Creators: name: Zhang, Yinghua
name: Song, Yangqiu
name: Bai, Kun
name: Yang, Qiang
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: Cryptography and Security (cs.CR)
subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences

description: Fine-tuning can be vulnerable to adversarial attacks. Existing works about black-box attacks on fine-tuned models (BAFT) are limited by strong assumptions. To fill the gap, we propose two novel BAFT settings, cross-domain and cross-domain cross-architecture BAFT, which only assume that (1) the target model for attacking is a fine-tuned model, and (2) the source domain data is known and accessible. To successfully attack fine-tuned models under both settings, we propose to first train an adversarial generator against the source model, which adopts an encoder-decoder architecture and maps a clean input to an adversarial example. Then we search in the low-dimensional latent space produced by the encoder of the adversarial generator. The search is conducted under the guidance of the surrogate gradient obtained from the source model. Experimental results on different domains and different network architectures demonstrate that the proposed attack method can effectively and efficiently attack the fine-tuned models.
description: To appear in CIKM 2022
Ultrafast Outflows from Black Hole Mergers with a Mini-Disk
Creators: name: Murase, Kohta
name: Kashiyama, Kazumi
name: Meszaros, Peter
name: Shoemaker, Ian
name: Senno, Nicholas
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Recently, the direct detection of gravitational waves from black hole (BH) mergers was announced by the Advanced LIGO Collaboration. Multi-messenger counterparts of stellar-mass BH mergers are of interest, and it had been suggested that a small disk or celestial body may be involved in the binary of two BHs. To test such possibilities, we consider the fate of a wind powered by an active mini-disk in a relatively short, super-Eddington accretion episode onto a BH with ~10-100 solar masses. We show that its thermal emission could be seen as a fast optical transient with the duration from hours to days. We also find that the coasting outflow forms external shocks due to interaction with the interstellar medium, whose synchrotron emission might be expected in the radio band on a time scale of years. Finally, we also discuss a possible jet component and the associated high-energy neutrino emission as well as ultra-high-energy cosmic-ray acceleration.
description: 5 pages, accepted for publication in ApJL, discussions added, some typos fixed. Conclusions unchanged
Bit threads and holographic entanglement
Creators: name: Freedman, Michael
name: Headrick, Matthew
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Differential Geometry (math.DG)
subject: Optimization and Control (math.OC)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 83E30 (Primary), 05C21, 83C27 (Secondary)

description: The Ryu-Takayanagi (RT) formula relates the entanglement entropy of a region in a holographic theory to the area of a corresponding bulk minimal surface. Using the max flow-min cut principle, a theorem from network theory, we rewrite the RT formula in a way that does not make reference to the minimal surface. Instead, we invoke the notion of a "flow", defined as a divergenceless norm-bounded vector field, or equivalently a set of Planck-thickness "bit threads". The entanglement entropy of a boundary region is given by the maximum flux out of it of any flow, or equivalently the maximum number of bit threads that can emanate from it. The threads thus represent entanglement between points on the boundary, and naturally implement the holographic principle. As we explain, this new picture clarifies several conceptual puzzles surrounding the RT formula. We give flow-based proofs of strong subadditivity and related properties; unlike the ones based on minimal surfaces, these proofs correspond in a transparent manner to the properties' information-theoretic meanings. We also briefly discuss certain technical advantages that the flows offer over minimal surfaces. In a mathematical appendix, we review the max flow-min cut theorem on networks and on Riemannian manifolds, and prove in the network case that the set of max flows varies Lipshitz continuously in the network parameters.
description: 37 pages; v2: improvements to presentation, references added; v3: minor improvements to presentation, references added, new affiliation for one author added
Cosmogenic Activation of Materials Used in Rare Event Search Experiments
Creators: name: Zhang, C.
name: Mei, D. -M.
name: Kudryavtsev, V. A.
name: Fiorucci, S.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We evaluate the cosmogenic production rates in some materials that are commonly used as targets and shielding/supporting components for detecting rare events. The results from Geant4 simulations are compared with the calculations of ACTIVIA and the available experimental data. We demonstrate that the production rates from the Geant4-based simulations agree with the available data reasonably well. As a result, we report that the cosmogenic production of several isotopes in various materials can generate potential backgrounds for direct detection of dark matter and neutrinoless double-beta decay.
description: 20 pages, 7 figures
MARVEL - D2.1: Collection and Analysis of Experimental Data
Creators: name: Muscat, Adrian
Publisher: name: Zenodo
Year: 2021
Subjects: smart cities
audio-visual data
Edge-to-Fog-to-Cloud (E2F2C)
annotation
data anonymisation
Articifial Intelligence
Big Data

description: Project MARVEL will create and publicly share with the academics, industrial community, and smart cities, a data pool of experimental multimodal audio-visual data and will showcase the use of the data and its processing across various pilots. This report documents the process for the collection and analysis of the experimental data. The use cases and AI tasks required to process the audio-visual data and enable the implementation of the pilots are first described. This knowledge determines how and where the audio-visual data is collected and annotated. The various devices, namely microphones and cameras, and their deployment are described next, followed by software tools that will be used in the data annotation task, that will be carried out according to what is required for training the AI models. The data is analysed to determine which parts constitute personal data, followed by a discussion on the appropriate data anonymisation techniques, which should ensure the sharing of GDPR compliant data. In addition, the data value chains are defined, including the data owner and access rights at each processing stage. The proposed datasets and AI models are matched and compared to the use cases and any gaps are identified. The volume and velocity at which data is collected and moved from one network layer to another are estimated from the technical specifications of the devices as well as from the expected output of the processing stages. These estimates enable the initial planning of the MARVEL framework, which promises a solution to collect and process big data of high volume and high variety while optimising both flow and processing at any appropriate point of the edge-fog-cloud infrastructure, typical of a smart city.
Inter-Vehicle Range Estimation from Periodic Broadcasts
Creators: name: Niesen, Urs
name: Ekambaram, Venkatesan N.
name: Jose, Jubin
name: Wu, Xinzhou
Publisher: name: arXiv
Year: 2015
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Dedicated short-range communication (DSRC) enables vehicular communication using periodic broadcast messages. We propose to use these periodic broadcasts to perform inter-vehicle ranging. Motivated by this scenario, we study the general problem of precise range estimation between pairs of moving vehicles using periodic broadcasts. Each vehicle has its own independent and unsynchronized clock, which can exhibit significant drift between consecutive periodic broadcast transmissions. As a consequence, both the clock offsets and drifts need to be taken into account in addition to the vehicle motion to accurately estimate the vehicle ranges. We develop a range estimation algorithm using local polynomial smoothing of the vehicle motion. The proposed algorithm can be applied to networks with arbitrary number of vehicles and requires no additional message exchanges apart from the periodic broadcasts. We validate our algorithm on experimental data and show that the performance of the proposed approach is close to that obtained using unicast round-trip time ranging. In particular, we are able to achieve sub-meter ranging accuracies in vehicular scenarios. Our scheme requires additional timestamp information to be transmitted as part of the broadcast messages, and we develop a novel timestamp compression algorithm to minimize the resulting overhead.
description: 16 pages
Typicality in spin network states of quantum geometry
Creators: name: Anzà, Fabio
name: Chirco, Goffredo
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this work, we extend the so-called typicality approach, originally formulated in statistical mechanics contexts, to $SU(2)$-invariant spin-network states. Our results do not depend on the physical interpretation of the spin network; however, they are mainly motivated by the fact that spin-network states can describe states of quantum geometry, providing a gauge-invariant basis for the kinematical Hilbert space of several background-independent approaches to quantum gravity. The first result is, by itself, the existence of a regime in which we show the emergence of a typical state. We interpret this as the proof that in that regime there are certain (local) properties of quantum geometry which are "universal". Such a set of properties is heralded by the typical state, of which we give the explicit form. This is our second result. In the end, we study some interesting properties of the typical state, proving that the area law for the entropy of a surface must be satisfied at the local level, up to logarithmic corrections which we are able to bound.
description: Typos and mistakes fixed