cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Expansion of Galactosemia Proteins Database 2.0 with a new galactosemia related protein
Creators: name: D'Acierno, Antonio
name: Facchiano, Angelo
name: Brando, Federica
name: Scafuri, Bernardina
name: Marabotti, Anna
Publisher: name: F1000 Research Limited
Year: 2020

description: Galactosemia Proteins Database 2.0 (http://www.protein-variants.eu/galactosemia) [d’Acierno et al., 2018] is the ELIXIR-IIB resource dedicated to the analysis and bioinformatics interpretation of the consequences of missense mutations occurring on three enzymes involved in the galactose metabolism, i.e. galactose-1-phosphate uridylyltransferase, galactokinase and UDP-galactose-4-epimerase. The impairment of each of these three enzymes leads to different forms of galactosemia, a group of rare, autosomal recessive inborn errors of metabolism that can cause both acute symptoms and long-term complications [Viggiano et al., 2018]. The knowledge of the impact of the mutations [Facchiano and Marabotti, 2010] has allowed to clarify the mechanisms by which the activity of these proteins has been impaired, and this is essential either to find a connection between the genotype of the patients and their phenotypes, and to hypothesize a therapeutic strategy. Very recently, a new form of galactosemia (Type IV galactosemia) has been found, associated to the impairment of galactose mutarotase enzyme [Wada et al., in press] and several mutations has been characterized also for this protein [Iwasawa et al., in press]. Therefore, we have modelled and analyzed all these new mutants, in order to create a new section of our database to collect these new data. Moreover, this upgrade allows us to implement other additional functionalities for the automatic upload and control of the data produced, and for the automation of most of the analyses performed on the data sets.
Energy Management System for a Low Voltage Direct Current Microgrid: Modeling and experimental validation
Creators: name: Gopee, Yanandlall
name: Gaetani-Liseo, Margot
name: Blavette, Anne
name: Camilleri, Guy
name: Roboam, Xavier
name: Alonso, Corinne
Publisher: name: arXiv
Year: 2023
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: In the field of microgrids with a significant integration of Renewable Energy Sources, the efficient and practical power storage systems requirement is causing DC microgrids to gain increasing attention. However, uncertainties in power generation and load consumption along with the fluctuations of electricity prices require the design of a reliable control architecture and a robust energy management system for enhancing the power quality and its sustainability, while minimizing the associated costs. This paper presents a mixed approach illustrating both simulation and experimental results of a grid-connected DC microgrid which includes a photovoltaic power source and a battery storage system. Special emphasis is placed on the minimization of the total operating cost of the microgrid while considering the battery degradation cost and the electricity tariff. Thereby, an optimal energy management system is proposed for Energy Storage Systems scheduling and enabling the minimization of the electricity bill based on simple models. Simultaneously, the differences between simulation and laboratory performances are highlighted.
Motion rejection and spectral unmixing for accurate estimation of in vivo oxygen saturation using multispectral optoacoustic tomography
Creators: name: Sarkar, Mitradeep
name: Pérez-Liva, Mailyn
name: Renault, Gilles
name: Tavitian, Bertrand
name: Gateau, Jérôme
Publisher: name: arXiv
Year: 2023
Subjects: subject: Medical Physics (physics.med-ph)
subject: Image and Video Processing (eess.IV)
subject: Optics (physics.optics)
subject: FOS: Physical sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Multispectral Optoacoustic Tomography (MSOT) uniquely enables spatial mapping in high resolution of oxygen saturation (SO$_2$), with potential applications in studying pathological complications and therapy efficacy. MSOT offers seamless integration with ultrasonography, by using a common ultrasound detector array. However, MSOT relies on multiple successive acquisitions of optoacoustic (OA) images at different optical wavelengths and the low frame rate of OA imaging makes the MSOT acquisition sensitive to body/respiratory motion. Moreover, estimation of SO$_2$ is highly sensitive to noise, and artefacts related to the respiratory motion of the animal were identified as the primary source of noise in MSOT.In this work, we propose a two-step image processing method for SO$_2$ estimation in deep tissues. First, to mitigate motion artefacts, we propose a method of selection of OA images acquired only during the respiratory pause of the animal, using ultrafast ultrasound images (USIs) acquired immediately after each OA acquisition (USI acquisition duration of 1.4 ms and a total delay of 7 ms). We show that gating is more effective using USIs than OA images at different optical wavelengths. Secondly, we propose a novel method which can estimate directly the SO$_2$ value of a pixel and at the same time evaluate the amount of noise present in that pixel. Hence, the method can efficiently eliminate the pixels dominated by noise from the final SO$_2$ map. Our post-processing method is shown to outperform conventional methods for SO$_2$ estimation, and the method was validated by in vivo oxygen challenge experiments.
North Saskatchewan River: Water Quality and Related Studies (2007-2012)
Creators: Alberta Environment and Sustainable Resource Development
Publisher: name: University of Alberta Library
Year: 2014

The purpose of this report was to provide a synoptic evaluation of the North Saskatchewan River and anthropogenic impacts on that system. The report summarizes data collected from 2007 to 2012 and builds on findings from technical study reports produced during this time period, including information on water quality, sediment quality and biota. This document provides a summary of the studies conducted, their purpose, methods, information gained and relevance to local and basin-wide water management. The report also evaluates the present state of the aquatic environment in the NSR and assesses effects on the in-stream water quality and aquatic ecosystem health resulting from current human activities in the watershed. (As cited in executive summary.)
Reading and Writing Single-Atom Magnets
Creators: name: Natterer, Fabian D.
name: Yang, Kai
name: Paul, William
name: Willke, Philip
name: Choi, Taeyoung
name: Greber, Thomas
name: Heinrich, Andreas J.
name: Lutz, Christopher P.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The highest-density magnetic storage media will code data in single-atom bits. To date, the smallest individually addressable bistable magnetic bits on surfaces consist of 5-12 atoms. Long magnetic relaxation times were demonstrated in molecular magnets containing one lanthanide atom, and recently in ensembles of single holmium (Ho) atoms supported on magnesium oxide (MgO). Those experiments indicated the possibility for data storage at the fundamental limit, but it remained unclear how to access the individual magnetic centers. Here we demonstrate the reading and writing of individual Ho atoms on MgO, and show that they independently retain their magnetic information over many hours. We read the Ho states by tunnel magnetoresistance and write with current pulses using a scanning tunneling microscope. The magnetic origin of the long-lived states is confirmed by single-atom electron paramagnetic resonance (EPR) on a nearby Fe sensor atom, which shows that Ho has a large out-of-plane moment of $(10.1 \pm 0.1)$ $μ_{\rm B}$ on this surface. In order to demonstrate independent reading and writing, we built an atomic scale structure with two Ho bits to which we write the four possible states and which we read out remotely by EPR. The high magnetic stability combined with electrical reading and writing shows that single-atom magnetic memory is possible.
Excerpts in a Time of Untruth, or Voltaire's Practice of Excerpting and the Rehabilitation of Justice
Creators: name: De Senarclens, Vanessa
Publisher: name: Humboldt-Universität zu Berlin
Year: 2020
Subjects: subject: Voltaire
subject: Justice
subject: Excerpts
subject: Enlightenment
subject: “Compilateurs”
subject: Scholarly practice
subject: La Barre case
subject: 900 Geschichte und Geografie

description: In the history of scholarly practice, Voltaire stands out among eighteenth‐century authors for his critical attitude towards erudite reading habits. His contempt for the “compilateurs” is a radical expression of the Enlightenment desire to write free of the traditions and burdens of the past. His famous interventions in Ancien Régime court cases are also emblematic of the action‐oriented philosophy of the period. This article investigates the role played in the case of the Chevalier de La Barre by documents that Voltaire called “excerpts.” The case was the last Voltaire was involved in and concerned a young man, charged with blasphemy, who was eventually beheaded and burnt in 1766, Voltaire's Dictionnaire philosophique portatif (1764) nailed to his torso. With reference to two texts in particular—Relation de la mort du chevalier de La Barre (1766) and Le Cri du sang innocent (1775)—I focus on Voltaire's practice of excerpting from the court transcripts and on their specific role in his fight for the rehabilitation of the victims.
Twist-four gravitational form factor at NNLO QCD from trace anomaly constraints
Creators: name: Tanaka, Kazuhiro
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: It is known that the trace anomaly in the QCD energy-momentum tensor $T^{μν}$ can be attributed to the anomalies for each of the gauge-invariant quark part and gluon part of $T^{μν}$, and their explicit three-loop formulas have been derived in the $\overline{\rm MS}$ scheme in the dimensional regularization. The matrix elements of this quark/gluon decomposition of the QCD trace anomaly allow us to derive the QCD constraints on the hadron's gravitational form factors, in particular, on the twist-four gravitational form factor, $\bar{C}_{q,g}$. Using the three-loop quark/gluon trace anomaly formulas, we calculate the forward (zero momentum transfer) value of the twist-four gravitational form factor $\bar{C}_{q,g}$ at the next-to-next-to-leading-order (NNLO) accuracy. We present quantitative results for nucleon as well as for pion, leading to a model-independent determination of the forward value of $\bar{C}_{q,g}$. We find quite different pattern in the obtained results between the nucleon and the pion. In particular, for the nucleon, the present information from experiment and lattice QCD on the nonperturbative matrix elements arising in our NNLO formula allows us to obtain a prediction of the forward value of $\bar{C}_{q,g}$ at the accuracy of a few percent level.
description: 40 pages, 5 figures; v3: typos corrected, published version
Exploring pulsar profiles at population scale from a graph theory perspective
Creators: name: Vohl, Dany
Publisher: name: Zenodo
Year: 2021
Subjects: Square Kilometer Array
Pulsar
Graph theory

description: The full Square Kilometer Array is expected to increase the population of currently known pulsars (~2,900) by more than 10-fold, a large fraction of which should already be found during Phase I. Now is therefore a good time to research and develop automated methods for knowledge extraction that require little to no human intervention. In this talk, we explore the task of automatically sequencing and classifying pulsar profiles by considering their morphology at different levels (total intensity and polarization).

 The integrated pulse profile of radio pulsars—composed of one or more components distributed over the rotational phase—represent one of their defining characteristics. The pulsar profile at a given observing frequency is generally stable over decades, and often evolves with frequency, a key to study the structure of its radio emitting magnetosphere. To date, efforts to classify and interpret pulsar profile morphology were performed to a large extent by eye, sometimes guided by supervised methods (e.g. evaluate the number of fitting components). Conversely, unsupervised methods have the potential to unravel faint features and possibly unknown scaling and morphological relations between different pulsars.

 Here, we present the status of an on-going effort to develop an unsupervised analysis framework that automatically sequences and classifies integrated pulse profiles by applying principles of graph theory using the semi-structured European Pulsar Network database as a case study. In addition, our custom codebase now permits to easily handle a collection of pulsar data and metadata, making it possible to perform post-processing and analysis within one coherent and expandable framework. We discuss analysis results, their potential physical implications, and lessons learned.
description: Presentation at the "SKA science conference: A precursor view of the SKA Sky".
The Existence of Topological Edge States in Honeycomb Plasmonic Lattices
Creators: name: Wang, Li
name: Zhang, Ruo-Yang
name: Xiao, Meng
name: Han, Dezhuan
name: Chan, C. T.
name: Wen, Weijia
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: In this paper, we investigate the band properties of 2D honeycomb plasmonic lattices consisting of metallic nanoparticles. By means of the coupled dipole method and quasi-static approximation, we theoretically analyze the band structures stemming from near-field interaction of localized surface plasmon polaritons for both the infinite lattice and ribbons. Naturally, the interaction of point dipoles decouples into independent out-of-plane and in-plane polarizations. For the out-of-plane modes, both the bulk spectrum and the range of the momentum $k_{\parallel}$ where edge states exist in ribbons are similar to the electronic bands in graphene. Nevertheless, the in-plane polarized modes show significant differences, which do not only possess additional non-flat edge states in ribbons, but also have different distributions of the flat edge states in reciprocal space. For in-plane polarized modes, we derived the bulk-edge correspondence, namely, the relation between the number of flat edge states at a fixed $k_\parallel$, Zak phases of the bulk bands and the winding number associated with the bulk hamiltonian, and verified it through four typical ribbon boundaries, i.e. zigzag, bearded zigzag, armchair, and bearded armchair. Our approach gives a new topological understanding of edge states in such plasmonic systems, and may also apply to other 2D "vector wave" systems.
description: 26 pages, 9 figures, accepted by New Journal of Physics
Focused management reporting system - from a financial perspective
Creators: name: Yung, Mary Mei Yuk.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
The ice cone family and iterated integrals for Calabi-Yau varieties
Creators: name: Duhr, Claude
name: Klemm, Albrecht
name: Nega, Christoph
name: Tancredi, Lorenzo
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We present for the first time fully analytic results for multi-loop equal-mass ice cone graphs in two dimensions. By analysing the leading singularities of these integrals, we find that the maximal cuts in two dimensions can be organised into two copies of the same periods that describe the Calabi-Yau varieties for the equal-mass banana integrals. We obtain a conjectural basis of master integrals at an arbitrary number of loops, and we solve the system of differential equations satisfied by the master integrals in terms of the same class of iterated integrals that have appeared earlier in the context of equal-mass banana integrals. We then go on and show that, when expressed in terms of the canonical coordinate on the moduli space, our results can naturally be written as iterated integrals involving the geometrical invariants of the Calabi-Yau varieties. Our results indicate how the concept of pure functions and transcendental weight can be extended to the case of Calabi-Yau varieties. Finally, we also obtain a novel representation of the periods of the Calabi-Yau varieties in terms of the same class of iterated integrals, and we show that the well-known quadratic relations among the periods reduce to simple shuffle relations among these iterated integrals.
Kaon physics overview
Creators: name: Aebischer, Jason
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: The present status of Kaon physics is summarized from a theory point of view. Focus is laid on $ΔS=2$, $ΔS=1$ as well as on rare Kaon decays, where progress has been made for instance in the case of $\varepsilon_K$ and $K_S\to μ^+μ^-$. Furthermore, several New Physics scenarios are discussed in the context of rare Kaon decays and other Kaon observables.
description: 6 pages, Contribution to the Proceedings for the International Conference on Kaon Physics 2022 (KAON2022)
Liquid quantum droplets of ultracold magnetic atoms
Creators: name: Ferrier-Barbut, Igor
name: Schmitt, Matthias
name: Wenzel, Matthias
name: Kadau, Holger
name: Pfau, Tilman
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The simultaneous presence of two competing inter-particle interactions can lead to the emergence of new phenomena in a many-body system. Among others, such effects are expected in dipolar Bose-Einstein condensates, subject to dipole-dipole interaction and short-range repulsion. Magnetic quantum gases and in particular Dysprosium gases, offering a comparable short-range contact and a long-range dipolar interaction energy, remarkably exhibit such emergent phenomena. In addition an effective cancellation of mean-field effects of the two interactions results in a pronounced importance of quantum-mechanical beyond mean-field effects. For a weakly-dominant dipolar interaction the striking consequence is the existence of a new state of matter equilibrated by the balance between weak mean-field attraction and beyond mean-field repulsion. Though exemplified here in the case of dipolar Bose gases, this state of matter should appear also with other microscopic interactions types, provided a competition results in an effective cancellation of the total mean-field. The macroscopic state takes the form of so-called quantum droplets. We present the effects of a long-range dipolar interaction between these droplets.
description: Revised manuscript for publication in a special issue of JPhysB
Anomalous Isotopic Effect of Tunneling States in NbTi-H/D
Creators: name: Sahling, S.
name: Abens, S.
name: Katkov, V. L.
name: Osipov, V. A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: The thermal conductivity, heat capacity and heat release of NbTi, NbTi-H and NbTi-D were measured at low temperatures. All three systems reveal low temperature anomalies typical for structural glasses. It is shown that above a concentration of 2\% H or D the tunneling states of the NbTi matrix disappear. Therefore, for higher concentration it is a good system to proof how the change of the mass of tunneling atoms influences the low temperature anomalies. For the heat capacity we found the expected isotopic effect. However, the anomalous isotopic effect observed for the heat release data cannot be explained within the standard tunneling model. A surprising result is that tunneling systems with very high barrier heights, even the systems with the maximum barrier height, influence remarkable the heat capacity and the heat release data at low temperatures. As a possible origin, we consider large-scale fluctuations in thermal expansion which could generate anomalous two-level systems.
The undiscovered ultra-diffuse galaxies of the Local Group
Creators: name: Newton, Oliver
name: Di Cintio, Arianna
name: Cardona-Barrero, Salvador
name: Libeskind, Noam I.
name: Hoffman, Yehuda
name: Knebe, Alexander
name: Sorce, Jenny
name: Steinmetz, Matthias
name: Tempel, Elmo
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Ultra-diffuse galaxies (UDGs) are attractive candidates to probe cosmological models and test theories of galaxy formation at low masses; however, they are difficult to detect because of their low surface brightness. In the Local Group a handful of UDGs have been found to date, most of which are satellites of the Milky Way and M31, and only two are isolated galaxies. It is unclear whether so few UDGs are expected. We address this by studying the population of UDGs formed in hydrodynamic constrained simulations of the Local Group from the HESTIA suite. For a Local Group with a total enclosed mass $M_{\rm LG}\!\left(< 2.5\, {\rm Mpc}\right)=8\times10^{12}\, {\rm M_\odot}$, we predict that there are $12\pm3$ isolated UDGs (68% confidence) with stellar masses $10^6 \leq M_\ast\, /\, {\rm M_\odot} < 10^9,$ and effective radii $R_{\rm e} \geq 1.5\, {\rm kpc}$, within 2.5 Mpc of the Local Group, of which $2^{+2}_{-1}$ (68% confidence) are detectable in the footprint of the Sloan Digital Sky Survey (SDSS). Accounting for survey incompleteness, we find that almost the entire population of UDGs in the Local Group field would be observable in a future all-sky survey with a depth similar to the SDSS, the Dark Energy Survey, or the Legacy Survey of Space and Time. Our results suggest that there is a population of UDGs in the Local Group awaiting discovery.
description: 9 pages including acknowledgements and references. Contains 5 figures and two tables. A repository of reduced data and scripts to reproduce the results in this manuscript is available at https://github.com/Musical-Neutron/lg_field_udgs and archived at https://doi.org/10.5281/zenodo.7757685 . Accepted by ApJL
Perturbative Asymptotic Safety and Its Phenomenological Applications
Creators: name: Bednyakov, Alexander
name: Mukhaeva, Alfiia
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Asymptotic safety is a remarkable example when fruitful ideas borrowed from statistical physics proliferate to high-energy physics. The concept of asymptotic safety is tightly connected to fixed points (FPs) of the renormalization-group (RG) flow, and generalize well-known asymptotic freedom to a scale-invariant ultraviolet completion with non-vanishing interactions. In this review, we discuss the key ideas behind asymptotic safety, a mechanism for achieving it, and the conditions it imposes on general gauge-Yukawa field theories. We also pay special attention to possible phenomenological applications and provide an overview of standard model (SM) extensions potentially exhibiting asymptotic safety.
description: 28 pages, 8 figures, review article, published version
Demonstration of the Jaynes-Cummings ladder with Rydberg-dressed atoms
Creators: name: Lee, Jongmin
name: Martin, Michael J.
name: Jau, Yuan-Yu
name: Keating, Tyler
name: Deutsch, Ivan H.
name: Biedermann, Grant W.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We observe the nonlinearity of the Jaynes-Cummings (JC) ladder in the Autler-Townes spectroscopy of the hyperfine ground states for a Rydberg-dressed two-atom system. Here the role of the two-level system in the JC model is played by the presence or absence of a collective Rydberg excitation, and the bosonic mode manifests as the number $n$ of single atom spin flips, symmetrically distributed between the atoms. We measure the normal-mode splitting and $\sqrt{n}$ nonlinearity as a function of detuning and Rabi frequency, thereby experimentally establishing the isomorphism with the JC model.
description: 5 pages, 4 figures
Riparian Health Assessment of Wabamun Lake
Creators: North Saskatchewan Watershed Alliance (NSWA)
Publisher: name: University of Alberta Library
Year: 2015

The North Saskatchewan Watershed Alliance (NSWA) was approached by the Wabamun Watershed Management Council in 2014 to assess the health of the Riparian Management Area of Wabamun Lake. The ensuing project was conducted using new aerial videography methods. These methods included video footage captured by a quad-copter unmanned air vehicle (UAV- commonly known as a drone), high-definition footage and ortho-rectified photographs on an ArcGIS platform. The use of this innovative approach was considered to be highly successful and cost- effective. (As cited in executive summary.)
Photon-assisted shot noise in graphene in the Terahertz range
Creators: name: Parmentier, F. D.
name: Serkovic-Loli, L. N.
name: Roulleau, P.
name: Glattli, D. C.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: When subjected to electromagnetic radiation, the fluctuation of the electronic current across a quantum conductor increases. This additional noise, called photon-assisted shot noise, arises from the generation and subsequent partition of electron-hole pairs in the conductor. The physics of photon-assisted shot noise has been thoroughly investigated at microwave frequencies up to 20 GHz, and its robustness suggests that it could be extended to the Terahertz (THz) range. Here, we present measurements of the quantum shot noise generated in a graphene nanoribbon subjected to a THz radiation. Our results show signatures of photon-assisted shot noise, further demonstrating that hallmark time-dependant quantum transport phenomena can be transposed to the THz range.
description: includes supplemental material
First-order phase transitions in Twin Higgs models
Creators: name: Badziak, Marcin
name: Nałęcz, Ignacy
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We revisit phase transitions in Twin Higgs (TH) models. We show that strong first-order phase transitions (FOPTs) can occur provided that appropriate source of $\mathbb{Z}_2$ symmetry breaking between the twin and Standard Model (SM) sectors is present. We found FOPTs in two classes of models. First: with hard $\mathbb{Z}_2$ breaking in the scalar potential allowing for FOPT. Second: with $\mathbb{Z}_2$ broken by enhanced Yukawa couplings of twin leptons. We also considered supersymmetric UV completion of the second scenario with light sleptons. The signal of gravitational waves produced during these phase transitions is typically small but can be close to the reach of AEDGE and Einstein Telescope in the case of the FOPT induced by light twin sleptons. Our results open a way to generate SM baryon asymmetry in TH models.
description: 36 pages, 18 figures. v2: comments and references added, typos corrected; version to be published
Hong-Ou-Mandel Interference between Two Deterministic Collective Excitations in an Atomic Ensemble
Creators: name: Li, Jun
name: Zhou, Ming-Ti
name: Jing, Bo
name: Wang, Xu-Jie
name: Yang, Sheng-Jun
name: Jiang, Xiao
name: Mølmer, Klaus
name: Bao, Xiao-Hui
name: Pan, Jian-Wei
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We demonstrate deterministic generation of two distinct collective excitations in one atomic ensemble, and we realize the Hong-Ou-Mandel interference between them. Using Rydberg blockade we create single collective excitations in two different Zeeman levels, and we use stimulated Raman transitions to perform a beam-splitter operation between the excited atomic modes. By converting the atomic excitations into photons, the two-excitation interference is measured by photon coincidence detection with a visibility of 0.89(6). The Hong-Ou-Mandel interference witnesses an entangled NOON state of the collective atomic excitations, and we demonstrate its two times enhanced sensitivity to a magnetic field compared with a single excitation. Our work implements a minimal instance of Boson sampling and paves the way for further multi-mode and multi-excitation studies with collective excitations of atomic ensembles.
description: 6 pages, 5 figures
From superdeformation to extreme deformation and clusterization in the N~Z nuclei of the A~40 mass region
Creators: name: Ray, D.
name: Afanasjev, A. V.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: A systematic search for extremely deformed structures in the N~Z nuclei of the A~40 mass region has been performed for the first time in the framework of covariant density functional theory. At spin zero such structures are located at high excitation energies which prevents their experimental observation. The rotation acts as a tool to bring these exotic shapes to the yrast line or its vicinity so that their observation could become possible with future generation of $γ-$tracking (or similar) detectors such as GRETA and AGATA. The major physical observables of such structures (such as transition quadrupole moments as well as kinematic and dynamic moments of inertia), the underlying single-particle structure and the spins at which they become yrast or near yrast are defined. The search for the fingerprints of clusterization and molecular structures is performed and the configurations with such features are discussed. The best candidates for observation of extremely deformed structures are identified. For several nuclei in this study (such as $^{36}$Ar), the addition of several spin units above currently measured maximum spin of $16\hbar$ will inevitably trigger the transition to hyper- and megadeformed nuclear shapes.
description: 27 pages, 35 figures, submitted to Physical Review C, supplemental material is provided in file supplement.pdf
Rotated chirped volume Bragg gratings for compact spectral analysis
Creators: name: Mhibik, Oussama
name: Yessenov, Murat
name: Mach, Lam
name: Glebov, Leonid
name: Abouraddy, Ayman F.
name: Divliansky, Ivan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We introduce a new optical component - a rotated chirped volume Bragg grating (r-CBG) - that spatially resolves the spectrum of a normally incident light beam in a compact footprint and without the need for subsequent free-space propagation or collimation. Unlike conventional chirped Bragg volume gratings in which both the length and width of the device must be increased to increase the bandwidth, by rotating the Bragg structure we sever the link between the length and width of an r-CBG, leading to a significantly reduced device footprint for the same bandwidth. We fabricate and characterize such a device in multiple spectral windows, we study its spectral resolution, and confirm that a pair of cascaded r-CBGs can resolve and then recombine the spectrum. Such a device can lead to ultra-compact spectrometers and pulse modulators.
description: 5-page letter
Using photon-hadron production to impose restrictions on heavy-hadrons fragmentation functions
Creators: name: Sborlini, German F. R.
name: Hernández-Pinto, Roger
name: Ochoa-Oregon, Salvador
name: Rentería-Estrada, David F.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Fragmentation Functions (FF) are universal non-perturbative objects that model hadronization in some general kind of processes. They are mainly extracted from experimental data, hence constraining the parameters of the corresponding fits is crucial for achieving reliable results. As expected, the production of lighter hadrons is favoured w.r.t. heavy ones, thus we would like to exploit the precise knowledge of pion FFs to constraint the shape of kaon (or heavier) FFs. In this talk, we show how imposing specific cuts on photon-hadron production leads to relations between the $u$-started FFs. For doing so, we exploit the reconstruction of momentum fractions in terms of experimentally-accessible quantities and introduce NLO QCD + LO QED corrections to reduce the theoretical uncertainties.
description: 6 pages, 2 figures. Contribution to the Proceedings of the EPS-HEP 2023 Conference
Linear and nonlinear eccentric mode evolution in unstratified MHD discs
Creators: name: Lynch, Elliot M.
name: Dewberry, Janosz W.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: In this paper we develop a framework for studying unstratified, magnetised eccentric discs and compute uniformly precessing eccentric modes in a cylindrical annulus which provide convenient initial conditions for numerical simulations. The presence of a magnetic field in an eccentric disc can be described by an effective gas with a modified equation of state. At magnetic field strengths relevant to the magneto-rotational instability the magnetic field has negligible influence on the evolution of the eccentric disc, however the eccentric disc can significantly enhance the magnetic field strength over that in the a circular disc. We verify the suitability of these eccentric disc solutions by carrying out 2D simulations in RAMSES. Our simulated modes (in 2D) follow a similar evolution to the purely hydrodynamical modes, matching theoretical expectations, provided they are adequately resolved. Such solutions will provide equilibrium states for studies of the eccentric magneto-rotational instability and magnetised parametric instability in unstratified discs and are useful for exploring the response of disc turbulence on top of a fluid flow varying on the orbital timescale.
description: 16 pages, 12 figures, accepted for publication in MNRAS
The recording and use of financial information in small business
Creators: name: Dyt, Ron.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
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High-scale leptogenesis with three-loop neutrino mass generation and dark matter
Creators: name: Gu, Pei-Hong
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We demonstrate a common origin for high-scale leptogenesis and three-loop neutrino mass generation. Specifically we extend the standard model by two real singlet scalars, two singly charged scalars carrying different lepton numbers and two or more singlet fermions with Majorana masses. Our model respects a softly broken lepton number and an exactly conserved $Z_2^{}$ discrete symmetry. Through the lepton-number-violating decays of the real scalars and then the lepton-number-conserving decays of the charged scalars, we can obtain a lepton asymmetry stored in the standard model leptons. This lepton asymmetry can be partially converted to a baryon asymmetry by the sphaleron processes. The interactions for this leptogenesis can also result in a three-loop diagram to generate the neutrino masses. The lightest singlet fermion can keep stable to serve as a dark matter particle.
description: 4 pages, 2 figures
Lower Bounds for On-line Interval Coloring with Vector and Cardinality Constraints
Creators: name: Gutowski, Grzegorz
name: Mikos, Patryk
Publisher: name: arXiv
Year: 2016
Subjects: subject: Combinatorics (math.CO)
subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: We propose two strategies for Presenter in the on-line interval graph coloring games. Specifically, we consider a setting in which each interval is associated with a $d$-dimensional vector of weights and the coloring needs to satisfy the $d$-dimensional bandwidth constraint, and the $k$-cardinality constraint. Such a variant was first introduced by Epstein and Levy and it is a natural model for resource-aware task scheduling with $d$ different shared resources where at most $k$ tasks can be scheduled simultaneously on a single machine. The first strategy forces any on-line interval coloring algorithm to use at least $(5m-3)\frac{d}{\log d + 3}$ different colors on an $m(\frac{d}{k} + \log{d} + 3)$-colorable set of intervals. The second strategy forces any on-line interval coloring algorithm to use at least $\lfloor\frac{5m}{2}\rfloor\frac{d}{\log d + 3}$ different colors on an $m(\frac{d}{k} + \log{d} + 3)$-colorable set of unit intervals.
Coherence properties of light in highly multimoded nonlinear parabolic fibers under optical equilibrium conditions
Creators: name: Selim, Mahmoud A.
name: Wu, Fan O.
name: Pyrialakos, Georgios G.
name: Khajavikhan, Mercedeh
name: Christodoulides, Demetrios
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We study the coherence characteristics of light propagating in nonlinear graded-index multimode fibers after attaining optical thermal equilibrium conditions. The role of optical temperature on the spatial mutual coherence function and the associated correlation area is systematically investigated. In this respect, we show that the coherence properties of the field at the output of a multimode nonlinear fiber can be controlled through its optical thermodynamic properties.
description: 4 pages,5 figures, journal
High-efficiency generation of nanoscale single silicon vacancy defect array in silicon carbide
Creators: name: Wang, Junfeng
name: Zhou, Yu
name: Zhang, Xiaoming
name: Liu, Fucai
name: Li, Yan
name: Li, Ke
name: Liu, Zheng
name: Wang, Guanzhong
name: Gao, Weibo
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Color centers in silicon carbide have increasingly attracted attention in recent years owing to their excellent properties such as single photon emission, good photostability, and long spin coherence time even at room temperature. As compared to diamond which is widely used for holding Nitrogen-vacancy centers, SiC has the advantage in terms of large-scale, high-quality and low cost growth, as well as advanced fabrication technique in optoelectronics, leading to the prospects for large scale quantum engineering. In this paper, we report experimental demonstration of the generation of nanoscale $V_{Si}$ single defect array through ion implantation without the need of annealing. $V_{Si}$ defects are generated in pre-determined locations with resolution of tens of nanometers. This can help in integrating $V_{Si}$ defects with the photonic structures which, in turn, can improve the emission and collection efficiency of $V_{Si}$ defects when it is used in spin photonic quantum network. On the other hand, the defects are shallow and they are generated $\sim 40nm$ below the surface which can serve as critical resources in quantum sensing application.
HST/WFC3 Observations of Uranus' 2014 storm clouds and comparison with VLT/SINFONI and IRTF/SpeX observations
Creators: name: Irwin, Patrick G. J.
name: Wong, Michael H.
name: Simon, Amy A.
name: Orton, G. S.
name: Toledo, Daniel
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences
subject: 85A20

description: Observations of Uranus were made on the 8/9th November with HST/WFC3 at a time when a huge cloud complex was present at 30 - 40N. We imaged Uranus in seven filters spanning 467 - 924 nm, and analysed these observations with the NEMESIS radiative-transfer and retrieval code. The same system was also observed in the H-band with VLT/SINFONI ON 31st October and 11th November (Irwin et al., 2016). To constrain the background cloud particle sizes and scattering properties we conducted a limb-darkening analysis of the background cloud structure at 30-40N by simultaneously fitting: a) these HST/OPAL observations at a range of zenith angles; b) the VLT/SINFONI observations at a range of zenith angles; and c) IRTF/SpeX observations made in 2009 (Irwin et al., 2015). We find that the observations are well modelled with a three-component cloud comprised of: 1) a vertically thin, but optically thick 'deep' tropospheric cloud at a pressure of ~2 bars; 2) a methane-ice cloud at the methane-condensation level with variable vertical extent; and 3) a vertically extended tropospheric haze. We find that the particles sizes in both haze and tropospheric cloud have an effective radius of ~0.1 micron, although we cannot rule out larger particle sizes in the tropospheric cloud. We find that the particles in both the tropospheric cloud and haze are more scattering at short wavelengths, giving them a blue colour, but are more absorbing at longer wavelengths, especially for the tropospheric haze. For the particles in the storm clouds, which we assume to be composed of methane ice particles, we find that their mean radii must be ~0.5 micron. We find that the high clouds have low integrated opacity, and that "streamers" reminiscent of thunderstorm anvils are confined to levels deeper than 1 bar. These results argue against vigorous moist convective origins for the cloud features.
description: 57 pages, 21 figures, 3 tables
Characterization of the Intrinsic and Extrinsic Resistances of a Microwave Graphene FET Under Zero Transconductance Conditions
Creators: name: Ribero-Figueroa, Xiomara
name: Pacheco-Sanchez, Anibal
name: Mansouri, Aida
name: Kumar, Pankaj
name: Habibpour, Omid
name: Zirath, Herbert
name: Sordan, Roman
name: Pasadas, Francisco
name: Jiménez, David
name: Torres-Torres, Reydezel
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Graphene field-effect transistors exhibit negligible transconductance under two scenarios: for any gate-to-source voltage when the drain-to-source voltage is set to zero, and for an arbitrary drain-to-source voltage provided that the gate-to-source voltage equals the Dirac voltage. Hence, extracting the channel and the parasitic series resistances from S-parameters under these conditions enables analyzing their dependence on the gate and drain biases. This is fundamental to assess the portion of the output resistance that is controlled by the gate. Besides, the drain bias dependence of the drain and source resistances is also evidenced. Within the proposal, resistive components accounting for the lossy nature of the gate capacitance are incorporated into the model, which exhibits a broadband correlation with experimental data. This avoids the series resistances to be considered as frequency dependent in the model.
On the computation of analytic sensitivities of eigenpairs in isogeometric analysis
Creators: name: Ziegler, Anna
name: Merkel, Melina
name: Gangl, Peter
name: Schöps, Sebastian
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Numerical Analysis (math.NA)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: The eigenmodes of resonating structures, e.g., electromagnetic cavities, are sensitive to deformations of their shape. In order to compute the sensitivities of the eigenpair with respect to a scalar parameter, we state the Laplacian and Maxwellian eigenvalue problems and discretize the models using isogeometric analysis. Since we require the derivatives of the system matrices, we differentiate the system matrices for each setting considering the appropriate function spaces for geometry and solution. This approach allows for a straightforward computation of arbitrary higher order sensitivities in a closed-form. In our work, we demonstrate the application in a setting of small geometric deformations, e.g., for the investigation of manufacturing uncertainties of electromagnetic cavities, as well as in an eigenvalue tracking along a shape morphing.
Beam Loss Monitors at LHC
Creators: name: Dehning, B.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: One of the main functions of the LHC beam loss measurement system is the protection of equipment against damage caused by impacting particles creating secondary showers and their energy dissipation in the matter. Reliability requirements are scaled according to the acceptable consequences and the frequency of particle impact events on equipment. Increasing reliability often leads to more complex systems. The downside of complexity is a reduction of availability; therefore, an optimum has to be found for these conflicting requirements. A detailed review of selected concepts and solutions for the LHC system will be given to show approaches used in various parts of the system from the sensors, signal processing, and software implementations to the requirements for operation and documentation.
description: 16 pages, contribution to the 2014 Joint International Accelerator School: Beam Loss and Accelerator Protection, Newport Beach, CA, USA , 5-14 Nov 2014