cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Creating arbitrary quantum vibrational states in a carbon nanotube
Creators: name: Wang, Heng
name: Burkard, Guido
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We theoretically study the creation of single- and multi-phonon Fock states and arbitrary superpositions of quantum phonon states in a nanomechanical carbon nanotube (CNT) resonator. In our model, a doubly clamped CNT resonator is initialized in the ground state and a single electron is trapped in a quantum dot which is formed by a electric gate potential and brought into the magnetic field of a micro-magnet. The preparation of arbitrary quantum phonon states is based on the coupling between the mechanical motion of the CNT and the electron spin which acts as a non-linearity. We assume that electrical driving pulses with different frequencies are applied on the system. The quantum information is transferred from the spin qubit to the mechanical motion by the spin-phonon coupling and the electron spin qubit can be reset by the single-electron spin resonance. We describe Wigner tomography which can be applied at the end to obtain the phase information of the prepared phonon states.
description: 8 pages, 5 figures
Management reporting for human resources
Creators: name: Yong, Pik Chin.
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.
Studying the Equilibrium Points of the Modified Circular Restricted Three-Body Problem: the Case of Sun-Haumea System
Creators: name: Huda, Ibnu Nurul
name: Dermawan, Budi
name: Saputra, Muhammad Bayu
name: Sadikin, Rifki
name: Hidayat, Taufiq
Publisher: name: arXiv
Year: 2023
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Dynamical Systems (math.DS)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We intend to study a modified version of the planar Circular Restricted Three-Body Problem (CRTBP) by incorporating several perturbing parameters. We consider the bigger primary as an oblate spheroid and emitting radiation while the small primary has an elongated body. We also consider the perturbation from a disk-like structure encompassing this three-body system. First, we develop a mathematical model of this modified CRTBP. We have found there exist five equilibrium points in this modified CRTBP model, where three of them are collinear and the other two are non-collinear. Second, we apply our modified CRTBP model to the Sun-Haumea system by considering several values of each perturbing parameter. Through our numerical investigation, we have discovered that the incorporation of perturbing parameters has resulted in a shift in the equilibrium point positions of the Sun-Haumea system compared to their positions in the classical CRTBP. The stability of equilibrium points is investigated. We have shown that the collinear equilibrium points are unstable and the stability of non-collinear equilibrium points depends on the mass parameter $μ$ of the system. Unlike the classical case, non-collinear equilibrium points have both a maximum and minimum limit of $μ$ for achieving stability. We remark that the stability range of $μ$ in non-collinear equilibrium points depends on the perturbing parameters. In context of the Sun-Haumea system, we have found that the non-collinear equilibrium points are stable.
description: Accepted for publication in Research in Astronomy and Astrophysics
Precise QCD predictions for the production of dijet final states in deep inelastic scattering
Creators: name: Currie, James
name: Gehrmann, Thomas
name: Niehues, Jan
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The production of two-jet final states in deep inelastic scattering is an important QCD precision observable. We compute it for the first time to next-to-next-to-leading order (NNLO) in perturbative QCD. Our calculation is fully differential in the lepton and jet variables and allows one to impose cuts on the jets both in the laboratory and the Breit frame. We observe that the NNLO corrections are moderate in size, except at kinematical edges, and that their inclusion leads to a substantial reduction of the scale variation uncertainty on the predictions. Our results will enable the inclusion of deep inelastic dijet data in precision phenomenology studies.
description: 4 pages, 3 figures
Mixed Inert Scalar Triplet Dark Matter, Radiative Neutrino Masses and Leptogenesis
Creators: name: Lu, Wen-Bin
name: Gu, Pei-Hong
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The neutral component of an inert scalar multiplet with hypercharge can provide a stable dark matter particle when its real and imaginary parts have a splitting mass spectrum. Otherwise, a tree-level dark matter-nucleon scattering mediated by the $Z$ boson will be much above the experimental limit. In this paper we focus on a mixed inert scalar triplet dark matter scenario where a complex scalar triplet with hypercharge can mix with another real scalar triplet without hypercharge through their renormalizable coupling to the standard model Higgs doublet. We consider three specified cases that carry most of the relevant features of the full parameter space: (i) the neutral component of the real triplet dominates the dark matter particle, (ii) the neutral component of the complex triplet dominates the dark matter particle; and (iii) the neutral components of the real and complex triplets equally constitute the dark matter particle. Subject to the dark matter relic abundance and direct detection constraint, we perform a systematic study on the allowed parameter space with particular emphasis on the interplay among triplet-doublet terms and gauge interactions. In the presence of these mixed inert scalar triplets, some heavy Dirac fermions composed of inert fermion doublets can be utilized to generate a tiny Majorana neutrino mass term at one-loop level and realize a successful leptogenesis for explaining the cosmic baryon asymmetry.
description: 38 pages, 23 figures, typos are corrected and references are added
COVID-19 and Labour Law: Austria
Creators: name: Risak, Martin
Publisher: name: Italian Labour Law e-Journal
Year: 2020
Subjects: Covid-19; Labour Law; Short-time work; Health and safety; Paid care leave

description: Austria has shut-down significant parts of the economy as well as public life since mid-March 2020 including schools, universities, shops, services and restaurants. Since May the measures have been relaxed towards a “new normality”. To counter dismissals a rather generous short- time work scheme was introduced that guarantees the employees an income at 80 – 90% of their former net wage. The other measures include special precautions for employees with high risks of serious etiopathology, special care leave and an obligation to use holidays and time credits.
description: Italian Labour Law e-Journal, Vol 13, No 1S (2020): Special Issue: Covid-19 and Labour Law. A Global Review
Municipal Guide: Planning for a Healthy and Sustainable North Saskatchewan River Watershed
Creators: North Saskatchewan Watershed Alliance (NSWA)
Publisher: name: University of Alberta Library
Year: 2006

The health of every community, whether rural or urban or small or large, depends on the health of the watershed in which it resides. Watersheds supply a number of goods and services that are intricately linked to economic health, the health of residents and overall community health. In Alberta, current lifestyles and the economic activity that maintains these lifestyles depend on the availability of reliable quantities of clean water. (As cited in introduction.)
Variational Bayes with Synthetic Likelihood
Creators: name: Ong, Victor M-H.
name: Nott, David J.
name: Tran, Minh-Ngoc
name: Sisson, Scott A.
name: Drovandi, Christopher C.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: Synthetic likelihood is an attractive approach to likelihood-free inference when an approximately Gaussian summary statistic for the data, informative for inference about the parameters, is available. The synthetic likelihood method derives an approximate likelihood function from a plug-in normal density estimate for the summary statistic, with plug-in mean and covariance matrix obtained by Monte Carlo simulation from the model. In this article, we develop alternatives to Markov chain Monte Carlo implementations of Bayesian synthetic likelihoods with reduced computational overheads. Our approach uses stochastic gradient variational inference methods for posterior approximation in the synthetic likelihood context, employing unbiased estimates of the log likelihood. We compare the new method with a related likelihood free variational inference technique in the literature, while at the same time improving the implementation of that approach in a number of ways. These new algorithms are feasible to implement in situations which are challenging for conventional approximate Bayesian computation (ABC) methods, in terms of the dimensionality of the parameter and summary statistic.
description: 30 pages; 7 figures
Stellar wind-magnetosphere interaction at exoplanets: computations of auroral radio powers
Creators: name: Nichols, J. D.
name: Milan, S. E.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We present calculations of the auroral radio powers expected from exoplanets with magnetospheres driven by an Earth-like magnetospheric interaction with the solar wind. Specifically, we compute the twin cell-vortical ionospheric flows, currents, and resulting radio powers resulting from a Dungey cycle process driven by dayside and nightside magnetic reconnection, as a function of planetary orbital distance and magnetic field strength. We include saturation of the magnetospheric convection, as observed at the terrestrial magnetosphere, and we present power law approximations for the convection potentials, radio powers and spectral flux densities. We specifically consider a solar-age system and a young (1 Gyr) system. We show that the radio power increases with magnetic field strength for magnetospheres with saturated convection potential, and broadly decreases with increasing orbital distance. We show that the magnetospheric convection at hot Jupiters will be saturated, and thus unable to dissipate the full available incident Poynting flux, such that the magnetic Radiometric Bode's Law (RBL) presents a substantial overestimation of the radio powers for hot Jupiters. Our radio powers for hot Jupiters are $\sim$5-1300 TW for hot Jupiters with field strengths of 0.1-10 $B_J$ orbiting a Sun-like star, while we find that competing effects yield essentially identical powers for hot Jupiters orbiting a young Sun-like star. However, in particular for planets with weaker magnetic fields our powers are higher at larger orbital distances than given by the RBL, and there are many configurations of planet that are expected to be detectable using SKA.
description: Accepted for publication in Mon. Not. R. Astron. Soc
Fermi surface and light quasi particles in hourglass nodal chain metal \b{eta}-ReO2
Creators: name: Hirai, Daigorou
name: Anbai, Takahito
name: Konoike, Takako
name: Uji, Shinya
name: Hattori, Yuya
name: Terashima, Taichi
name: Ishikawa, Hajime
name: Kindo, Koichi
name: Katayama, Naoyuki
name: Oguchi, Tamio
name: Hiroi, Zenji
Publisher: name: arXiv
Year: 2023
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Quantum oscillations in magnetic torque and electrical resistivity were measured to investigate the electronic structure of \b{eta}-ReO2, a candidate hourglass nodal chain metal (Dirac loop chain metal). All the de Haas-van Alphen oscillation branches measured at 30 mK in magnetic fields of up to 17.5 T were consistent with first-principles calculations predicting four Fermi surfaces (FSs). The small-electron FS of the four FSs exhibited a very small cyclotron mass, 0.059 times that of the free electrons, which is likely to be related to the linear dispersion of the energy band. The consistency between the quantum oscillation results and band calculations indicates the presence of the hourglass nodal chain predicted for \b{eta}-ReO2 in the vicinity of the Fermi energy.
description: 11 pages, 8 figures, 2 tables
Distilling momentum-space entanglement in Luttinger liquids at finite temperature
Creators: name: Dóra, Balázs
name: Lovas, Izabella
name: Pollmann, Frank
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: While much is known about the entanglement characteristics of ground states, the properties of reduced thermal density matrices have received significantly less attention. Here we investigate the entanglement content of reduced thermal density matrices for momentum-space bipartitioning in Luttinger liquids using analytical and numerical methods. The low lying part of its spectrum contains an "entanglement gap", which persists up to temperatures comparable to the level spacing. With increasing temperature, the low energy modes acquire dispersion and resemble to those in the physical Hamiltonian with an enhanced effective temperature. The momentum-space entanglement is carried by high energy modes (compared to temperature), featuring a completely flat spectrum. The von-Neumann entropy increases with temperature with a universal Sommerfeld coefficient. The momentum-space entanglement Hamiltonian turns out to be as universal as the physical Hamiltonian.
description: 6 pages, 2 figures
Successive phase transitions of the spin-orbit-coupled metal Cd2Re2O7 probed by high-resolution synchrotron x-ray diffraction
Creators: name: Hirai, Daigorou
name: Fukui, Atsuhito
name: Sagayama, Hajime
name: Hasegawa, Takumi
name: Hiroi, Zenji
Publisher: name: arXiv
Year: 2023
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The 5d pyrochlore oxide superconductor Cd2Re2O7 (CRO) has attracted significant interest as a spin-orbit-coupled metal (SOCM) that spontaneously undergoes a phase transition to an odd-parity multipole phase by breaking the spatial inversion symmetry due to the Fermi liquid instability caused by strong spin-orbit coupling. Despite the significance of structural information during the transition, previous experimental results regarding lattice deformation have been elusive. We have conducted ultra-high resolution synchrotron radiation x-ray diffraction experiments on a high-quality CRO single crystal. The temperature-dependent splitting of the 0 0 16 and 0 0 14 reflections, which are allowed and forbidden, respectively, in the high-temperature cubic phase I (space group Fd-3m), has been clearly observed and reveals the following significant facts: inversion symmetry breaking and tetragonal distortion occur simultaneously at Ts1 = 201.5(1) K; the previously believed first-order transition between phase II (I-4m2) and phase III (I4122) at Ts2 ~ 120 K consists of two close second-order transitions at Ts2 = 115.4(1) K and Ts3 ~ 100 K; there is a new orthorhombic phase XI (F222) in between. The order parameters (OPs) of these continuous transitions are uniquely represented by a two-dimensional irreducible representation Eu of the Oh point group, and the OPs of phase XI are a linear combination of those of phases II and III. Each phase is believed to correspond to a distinct odd-parity multipole order, and the complex successive transitions observed may be the result of an electronic phase transition that resolves the Fermi liquid instability in the SOCM.
description: 10 pages, 6 figures, 1 Table
BioExcel Webinar #30 - Immersive visual exploration of biomolecular systems in virtual reality – from static views to interactive dynamics
Creators: name: Baaden, Marc
Publisher: name: Zenodo
Year: 2018
Subjects: webinar

description: For several years now, my team pursues the goal to study complex molecular assemblies through interactive visualization, manipulation and analysis approaches to aid hypothesis generation and exploration of complex datasets. The UnityMol framework [1] forms a central tool for these investigations and is based on the Unity3D game engine.
 A first line of research tries to help with the 3D context, for instance through content-guided navigation, exploded views and semantic links between molecular objects and their analysis data [2]. Concerning the molecular representations, we extended the UnityMol repertoire to include specific visualizations for sugar molecules [3] and have now also included coarse-grained systems by default. These are particularly apt for interactive simulations, even in the classroom or via crowdsourcing.
 A particular focus lies on the integration of dedicated hardware such as large, high-resolution display walls, or more recently head-mounted virtual reality headsets or augmented reality setups. [1] Lv et al., Game on, Science – how video game technology may help biologists tackle visualization challenges, PLoS ONE 8(3):e57990, 2013
 (http://unitymol.sourceforge.net) [2] Trellet et al., Interactive Visual Analytics of Molecular Data in Immersive Environments via a Semantic Definition of the Content and the Context, IEEE VR 2016/VR 2016 Workshop on Immersive Analytics [3] Pérez et al., Three-Dimensional Representations of Complex Carbohydrates and Polysaccharides. SweetUnityMol: A Video Game Based Computer Graphic Software, Glycobiology 25, 2015, 483-491; doi: 10.1093/glycob/cwu133
Mapping the Similarities of Spectra: Global and Locally-biased Approaches to SDSS Galaxy Data
Creators: name: Lawlor, David
name: Budavári, Tamás
name: Mahoney, Michael W.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Data Structures and Algorithms (cs.DS)
subject: Machine Learning (stat.ML)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We apply a novel spectral graph technique, that of locally-biased semi-supervised eigenvectors, to study the diversity of galaxies. This technique permits us to characterize empirically the natural variations in observed spectra data, and we illustrate how this approach can be used in an exploratory manner to highlight both large-scale global as well as small-scale local structure in Sloan Digital Sky Survey (SDSS) data. We use this method in a way that simultaneously takes into account the measurements of spectral lines as well as the continuum shape. Unlike Principal Component Analysis, this method does not assume that the Euclidean distance between galaxy spectra is a good global measure of similarity between all spectra, but instead it only assumes that local difference information between similar spectra is reliable. Moreover, unlike other nonlinear dimensionality methods, this method can be used to characterize very finely both small-scale local as well as large-scale global properties of realistic noisy data. The power of the method is demonstrated on the SDSS Main Galaxy Sample by illustrating that the derived embeddings of spectra carry an unprecedented amount of information. By using a straightforward global or unsupervised variant, we observe that the main features correlate strongly with star formation rate and that they clearly separate active galactic nuclei. Computed parameters of the method can be used to describe line strengths and their interdependencies. By using a locally-biased or semi-supervised variant, we are able to focus on typical variations around specific objects of astronomical interest. We present several examples illustrating that this approach can enable new discoveries in the data as well as a detailed understanding of very fine local structure that would otherwise be overwhelmed by large-scale noise and global trends in the data.
description: 34 pages. A modified version of this paper has been accepted to The Astrophysical Journal
Direct determination of the spin structure of Nd$_2$Ir$_2$O$_7$ by means of neutron diffraction
Creators: name: Guo, H.
name: Ritter, C.
name: Komarek, A. C.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report on the spin structure of the pyrochlore iridate Nd$_2$Ir$_2$O$_7$ that could be directly determined by means of powder neutron diffraction. Our magnetic structure refinement unravels a so-called all-in/all-out magnetic structure that appears in both, the Nd and the Ir sublattice. The ordered magnetic moments at 1.8 K amount to 0.34(1) $μ_\mathrm{B}$/Ir$^{4+}$ and 1.27(1) $μ_\mathrm{B}$/Nd$^{3+}$. The Nd$^{3+}$ moment size at 1.8 K is smaller than that expected for the Nd$^{3+}$ ground state doublet. On the other hand, the size of the ordered moments of the Ir$^{4+}$ ions at 1.8 K agrees very well with the value expected for a $J_\mathrm{eff}$ = 1/2 state based on the presence of strong spin-orbit coupling in this system. Finally, our measurements reveal a parallel alignment of the Nd$^{3+}$ moments with the net moment of its six nearest neighboring Ir$^{4+}$ ions.
description: http://journals.aps.org/prb/pdf/10.1103/PhysRevB.94.161102
Expert systems as an aid to degree status analysis
Creators: name: Tan, Yuen Choo.
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.
COVID-19 and Labour Law: China
Creators: name: Ding, Wenwen
Publisher: name: Italian Labour Law e-Journal
Year: 2020
Subjects: Covid-19; Labour Law; Unemployment Insurance; Health and Safety; Social Protection; Migrant Workers; Social Partners

description: The Chinese government has provided special protection for workers who are, or might be, affected by the coronavirus, or who are in close contact with coronavirus patients, and are thus under mandatory quarantine. It has also required employers to continue paying employees when enterprises suspend production. To ensure unemployed workers’ a basic living, the government has adjusted the unemployment insurance by simplifying the application process and expanding its coverage to include more unemployed workers for a longer period. To support affected employers and to save jobs, the government has reduced or deferred employers’ payment of social insurance contributions. Migrant workers, the most affected group, have received special financial and employment support as well.
description: Italian Labour Law e-Journal, Vol 13, No 1S (2020): Special Issue: Covid-19 and Labour Law. A Global Review
Quantum limits on detection sensitivity of a linear detector with feedback
Creators: name: Gao, Yang
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show that the detection sensitivity of a linear detector is lower bounded by some quantum limits. For the force detection, relevant for atomic force microscopes, the lower bound is given by the so-called ultimate quantum limit. For the displacement detection, relevant for detecting gravitational waves, a generalized lower bound is obtained.
description: 5 pages, 4 figures
The creation of a massive UCD by tidal threshing from NGC 936
Creators: name: Paudel, Sanjaya
name: Duc, Pierre-Alain
name: Lim, Sungsoon
name: Poulain, Mélina
name: Marleau, Francine R.
name: Müller, Oliver
name: Sánchez-Janssen, Rubén
name: Habas, Rebecca
name: Durrell, Patrick R.
name: Heesters, Nick
name: Chhatkuli, Daya Nidhi
name: Yoon, Suk-Jin
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We study a compact nucleus embedded in an early-type dwarf galaxy, MATLAS-167, which is in the process of disruption by the tidal force of the neighboring giant S0 galaxy, NGC 936, in a group environment. Using the imaging data of the MATLAS survey, we analyze the stellar tidal tail of MATLAS-167 and its central compact nucleus, designated as NGC 936_UCD. We find that NGC 936_UCD has a luminosity of M$_{g}$ = $-$11.43$\pm$0.01 mag and a size of 66.5$\pm$17 pc, sharing the global properties of Ultra Compact Dwarf galaxies (UCDs) but significantly larger and brighter compared to the typical UCD populations observed in the Virgo cluster. By integrating the total luminosity of both the tidal stream and MATLAS-167, we estimate that the disrupted dwarf progenitor possesses a luminosity of M$_{g}$ = $-$15.92$\pm$0.06 mag, a typical bright dE luminosity. With the help of the optical spectrum observed by the SDSS survey, we derive the simple stellar population properties of NGC 936_UCD: a light-weighted age of 5.6$\pm$0.7 Gyr and metallicity of [Z/H] = $-$0.83$\pm$0.3 dex. Our findings suggest that tidal threshing is a possible formation mechanism of bright UCD populations in close proximity to giant galaxies.
description: Accepted for publication in MNRAS
COVID-19 and Labour Law: Colombia
Creators: name: López Moreno, Juan Pablo
name: Duarte González, Luz Angela
name: Morad, Juliana
Publisher: name: Italian Labour Law e-Journal
Year: 2020
Subjects: Covid-19; Labour Law; Employment retention schemes; Unemployment benefits; Health and safety

description: Due to the global pandemic, Colombia has established a preventive social isolation with some exceptions. In order to protect workers' sources of income, it has adopted various measures to guarantee job stability, employees' labour income and informal workers’ rights, while considering the opinion of the Social Partners. Therefore, and despite that the Colombian government’s reaction has not completely covered the relevant ILO’s International Labour Standards yet, there is clear and daily action to adapt the norms and institutions in the country in order to thrive after the COVID-19 outbreak.
description: Italian Labour Law e-Journal, Vol 13, No 1S (2020): Special Issue: Covid-19 and Labour Law. A Global Review
Extending two Higgs doublet models for two-loop neutrino mass generation and one-loop neutrinoless double beta decay
Creators: name: Liu, Zhen
name: Gu, Pei-Hong
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We extend some two Higgs doublet models, where the Yukawa couplings for the charged fermion mass generation only involve one Higgs doublet, by two singlet scalars respectively carrying a singly electric charge and a doubly electric charge. The doublet and singlet scalars together can mediate a two-loop diagram to generate a tiny Majorana mass matrix of the standard model neutrinos. Remarkably, the structure of the neutrino mass matrix is fully determined by the symmetric Yukawa couplings of the doubly charged scalar to the right-handed leptons. Meanwhile, a one-loop induced neutrinoless double beta decay can arrive at a testable level even if the electron neutrino has an extremely small Majorana mass. We also study other experimental constraints and implications including some rare processes and Higgs phenomenology.
description: 15 pages, 6 figures, references are added
COVID-19 and Labour Law: Georgia
Creators: name: Shvelidze, Zakaria
Publisher: name: Italian Labour Law e-Journal
Year: 2020
Subjects: Covid-19; Labour Law: Temporary disability; Remote work; Workplace social distancing; Suspension of employment relationship; Dismissal

description: The state of emergency in Georgia proposes no direct restrictions related to labour rights. However, prohibitions of economic activities under the Government Resolution emerge certain issues concerning labour relations. Resolution requires fulfillment of social distancing norms within the permitted workplaces. The Resolution sets remote workregime.
description: Italian Labour Law e-Journal, Vol 13, No 1S (2020): Special Issue: Covid-19 and Labour Law. A Global Review
COVID-19 and Labour Law: France
Creators: name: Moizard, Nicolas
Publisher: name: Italian Labour Law e-Journal
Year: 2020
Subjects: Covid-19; Labour Law; Short-time work; Working time flexibility

description: In France, the main goal of the legislation adopted in response to the health crisis is to avoid dismissals by the development of short-time working and more flexibility in working time. New measures protect also unemployed and independent workers. Several measures have an impact on social dialogue in the firm.
description: Italian Labour Law e-Journal, Vol 13, No 1S (2020): Special Issue: Covid-19 and Labour Law. A Global Review
COVID-19 and Labour Law: Estonia
Creators: name: Erikson, Merle
Publisher: name: Italian Labour Law e-Journal
Year: 2020
Subjects: Covid-19; Labour Law; Telework; Reduction of wages; Wage compensation

description: The restrictions implemented to counteract the spread of the Covid-19 disease has led to a high degree of teleworking. The applicationof the provisions allowing unilateral amendment of the employment contract by the employer (mainly to reduce wages) has become commonplace. The Unemployment Insurance Fund pays the wage compensation to employees whose employer’s operation has been considerably disrupted by extraordinary circumstances.
description: Italian Labour Law e-Journal, Vol 13, No 1S (2020): Special Issue: Covid-19 and Labour Law. A Global Review
The Trump phenomenon, an explanation from sociophysics
Creators: name: Galam, Serge
Publisher: name: arXiv
Year: 2016
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: The Trump phenomenon is argued to depart from current populist rise in Europe. According to a model of opinion dynamics from sociophysics the machinery of Trump's amazing success obeys well-defined counter-intuitive rules. Therefore, his success was in principle predictable from the start. The model uses local majority rule arguments and obeys a threshold dynamics. The associated tipping points are found to depend on the leading collective beliefs, cognitive biases and prejudices of the social group which undertakes the public debate. And here comes the sesame of the Trump campaign, which develops along two successive steps. During a first moment, Trump's statement produces a majority of voters against him. But at the same time, according to the model the shocking character of the statement modifies the prejudice balance. In case the prejudice is present even being frozen among voters, the tipping point is lowered at Trump's benefit. Nevertheless, although the tipping point has been lowered by the activation of frozen prejudices it is instrumental to preserve enough support from openly prejudiced people to be above the threshold. Then, as infuriated voters launch intense debate, occurrence of ties will drive progressively hostile people to shift their voting intention without needing to endorse the statement which has infuriated them. The on going debate does drive towards a majority for Trump. The possible Trump victory at November Presidential election is discussed. In particular, the model shows that to eventually win the Presidential election, Trump must not modify his past shocking attitude but to appeal to a different spectrum of frozen prejudices, which are common to both Democrats and Republicans.
description: 24 pages, 9 figures, to appear in International Journal of Modern Physics B
Phenomenological and cosmological implications of a scotogenic three-loop neutrino mass model
Creators: name: Abada, Asmaa
name: Bernal, Nicolás
name: Hernández, Antonio E. Cárcamo
name: Kovalenko, Sergey
name: de Melo, Téssio B.
name: Toma, Takashi
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We propose a scotogenic model for generating neutrino masses through a three-loop seesaw. It is a minimally extended inert doublet model with a spontaneously broken global symmetry $U(1)'$ and a preserved $\mathbb{Z}_2$ symmetry. The three-loop suppression allows the new particles to have masses at the TeV scale without fine-tuning the Yukawa couplings. The model leads to a rich phenomenology while satisfying all the current constraints imposed by neutrinoless double-beta decay, charged-lepton flavor violation, and electroweak precision observables. The relatively large Yukawa couplings lead to sizable rates for charged lepton flavor violation processes, well within future experimental reach. The model could also successfully explain the $W$ mass anomaly and provides viable fermionic or scalar dark matter candidates.
description: 30 pages, 5 figures. Extended discussion on the muon g-2. Matches published version in JHEP
Origins and optimization of entanglement in plasmonically coupled quantum dots
Creators: name: Otten, Matthew
name: Larson, Jeffrey
name: Min, Misun
name: Wild, Stefan M.
name: Pelton, Matthew
name: Gray, Stephen
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A system of two or more quantum dots interacting with a dissipative plasmonic nanostructure is investigated in detail by using a cavity quantum electrodynamics approach with a model Hamiltonian. We focus on determining and understanding system configurations that generate multiple bipartite quantum entanglements between the occupation states of the quantum dots. These configurations include allowing for the quantum dots to be asymmetrically coupled to the plasmonic system. Analytical solution of a simplified limit for an arbitrary number of quantum dots and numerical simulations and optimization for the two- and three-dot cases are used to develop guidelines for maximizing the bipartite entanglements. For any number of quantum dots, we show that through simple starting states and parameter guidelines, one quantum dot can be made to share a strong amount of bipartite entanglement with all other quantum dots in the system, while entangling all other pairs to a lesser degree.
description: 34 pages, 7 figures
A derivation of the conditions under which bosonic operators exactly capture fermionic structure and dynamics
Creators: name: Montoya-Castillo, Andrés
name: Markland, Thomas E.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The dynamics of many-body fermionic systems are important in problems ranging from catalytic reactions at electrochemical surfaces, to transport through nanojunctions, and offer a prime target for quantum computing applications. Here we derive the set of conditions under which fermionic operators can be exactly replaced by bosonic operators that render the problem amenable to a large toolbox of dynamical methods while still capturing the correct dynamics of the $n$-body operators. Importantly, our analysis offers a simple guide on how one can exploit these simple maps to calculate nonequilibrium and equilibrium single- and multi-time correlation functions essential in describing transport and spectroscopy. We use this to rigorously analyze and delineate the applicability of simple yet effective Cartesian maps that have been shown to correctly capture the correct fermionic dynamics in select models of nanoscopic transport. We illustrate our analytical results with exact simulations of the resonant level model. Our work provides new insights as to when one can leverage the simplicity of bosonic maps to simulate the dynamics of many-electron systems, especially those where an atomistic representation of nuclear interactions becomes essential.
description: 9 pages, 2 figures main text + 7 pages appendices and references
COVID-19 and Labour Law: The Netherlands
Creators: name: Bennaars, Hanneke
name: Ter Haar, Beryl
Publisher: name: Italian Labour Law e-Journal
Year: 2020
Subjects: Covid-19; Labour law; NOW; TOZO; Preservation of jobs; Income protection

description: The Netherlands is in an “intelligent” lock down, which means that social and economic activities are limited, but not to the extent that people are locked in their houses. The main labour law related measure, NOW, aims to protect jobs by compensating the costs of wages when the employer suffers a loss of turnover of more than 20%. Self-employed can apply for a relaxed regime on income support (TOZO). The regular labour law measures have not been altered, with the exception of the driving time for truckdrivers delivering essential goods. Via the Labour Foundation social partners work closely together with the government.
description: Italian Labour Law e-Journal, Vol 13, No 1S (2020): Special Issue: Covid-19 and Labour Law. A Global Review
Spin wave excitations in the pyrovanadate alpha-Cu2V2O7
Creators: name: Banerjee, A.
name: Sannigrahi, J.
name: Bhowal, S.
name: Dasgupta, I.
name: Majumdar, S.
name: Walker, H. C.
name: Bhattacharyya, A.
name: Adroja, D. T.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The pyrovanadate alpha-Cu2V2O7 belongs to the orthorhombic (Fdd2) class of crystals with noncentrosymmetric crystal structure. Recently, the compound has been identified to be a magnetic multiferroic with a substantial electric polarization below the magnetic transition temperature TC = 35 K. Here we report the results of our inelastic neutron scattering (INS) studies on a polycrystalline sample of alpha-Cu2V2O7. Our INS data clearly show the existence of dispersive spin wave excitations below TC with a zone-boundary energy of 11 meV at 5 K.We have analyzed the data using linear spin wave theory, which shows good agreement between the experiment and calculation. The analysis is consistent with the third nearest neighbor exchange interaction playing a dominant role in the magnetism of the material.
description: 5 pages, 5 figures
Criticisms of SQL and an experimental implementation of Date's proposed domain support approach
Creators: name: Ng, Lay Har.
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.
Gravitational transition form factors of $N \rightarrow Δ$ via QCD light-cone sum rules
Creators: name: Özdem, U.
name: Azizi, K.
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: We present the first direct calculation on the gravitational form factors (GFFs) of the $N \rightarrow Δ$ transition using an analytic method, the QCD light-cone sum rules. The matrix element of the quark part of the energy momentum tensor current sandwiched between the nucleon and $Δ$ states are parameterized in terms of five independent conserved and four independent non-conserved GFFs, for calculation of which we use the distribution amplitudes (DAs) of the on-shell nucleon expanded in terms of functions with different twists. We present the results for two sets of light-cone input parameters. The results indicate that the behavior of the form factors with respect to $Q^2$ are described by multipole fit functions. Our results may be checked by other phenomenological models including the Lattice QCD as well as future related experiments.
description: 18 Pages, 4 Figures and 2 Tables, To be published in JHEP
COVID-19 and Labour Law: Republic of Serbia
Creators: name: Ranđelović, Dragana
Publisher: name: Italian Labour Law e-Journal
Year: 2020
Subjects: Covid-19; Labour Law; Remote work; Health and safety

description: In this national report, the author will, chronologically, in an informative form, introduce the measures enacted in the Republic of Serbia in order to prevent and control the spread of COVID-19, with an emphasis on those that are affecting on employment relations and working conditions. Also, in this report the specific problems in practice and the recommendations of the line ministries, that have been enacted with the aim of facilitating the resolution of numerous contentious practice situations, will be highlighted.
description: Italian Labour Law e-Journal, Vol 13, No 1S (2020): Special Issue: Covid-19 and Labour Law. A Global Review
Symmetry Enrichment in Three-Dimensional Topological Phases
Creators: name: Ning, Shang-Qiang
name: Liu, Zheng-Xin
name: Ye, Peng
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: While two-dimensional symmetry-enriched topological phases ($\mathsf{SET}$s) have been studied intensively and systematically, three-dimensional ones are still open issues. We propose an algorithmic approach of imposing global symmetry $G_s$ on gauge theories (denoted by $\mathsf{GT}$) with gauge group $G_g$. The resulting symmetric gauge theories are dubbed "symmetry-enriched gauge theories" ($\mathsf{SEG}$), which may be served as low-energy effective theories of three-dimensional symmetric topological quantum spin liquids. We focus on $\mathsf{SEG}$s with gauge group $G_g=\mathbb{Z}_{N_1}\times\mathbb{Z}_{N_2}\times\cdots$ and on-site unitary symmetry group $G_s=\mathbb{Z}_{K_1}\times\mathbb{Z}_{K_2}\times\cdots$ or $G_s=\mathrm{U(1)}\times \mathbb{Z}_{K_1}\times\cdots$. Each $\mathsf{SEG}(G_g,G_s)$ is described in the path integral formalism associated with certain symmetry assignment. From the path-integral expression, we propose how to physically diagnose the ground state properties (i.e., $\mathsf{SET}$ orders) of $\mathsf{SEG}$s in experiments of charge-loop braidings (patterns of symmetry fractionalization) and the \emph{mixed} multi-loop braidings among deconfined loop excitations and confined symmetry fluxes. From these symmetry-enriched properties, one can obtain the map from $\mathsf{SEG}$s to $\mathsf{SET}$s. By giving full dynamics to background gauge fields, $\mathsf{SEG}$s may be eventually promoted to a set of new gauge theories (denoted by $\mathsf{GT}^*$). Based on their gauge groups, $\mathsf{GT}^*$s may be further regrouped into different classes each of which is labeled by a gauge group ${G}^*_g$. Finally, a web of gauge theories involving $\mathsf{GT}$, $\mathsf{SEG}$, $\mathsf{SET}$ and $\mathsf{GT}^*$ is achieved. We demonstrate the above symmetry-enrichment physics and the web of gauge theories through many concrete examples.
description: 24 pages, 5 figures
Newtonian cosmology from quantum corrected Newtonian potential
Creators: name: Mandal, Rituparna
name: Gangopadhyay, Sunandan
name: Lahiri, Amitabha
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the Newtonian cosmology taking into account the leading classical and quantum corrections of order $\mathcal{O}(G^{2})$ in the Newtonian potential. We first derive the modified Friedmann equations starting from the non-relativistic conservation of kinetic energy and potential energy for an infinitesimal mass. We then consider the leading classical correction term and the quantum correction term in the Newtonian potential for deriving the Friedmann equation, however, the quantum correction term is too small and hence does not contribute in the physical results. We then investigate the difference in scale factor with the usual scale factor for various matter like radiation, dust and cosmological constant by considering the corrections in the Newtonian potential. We observe that the evolution of the universe is similar for radiation and dust cases at late times. The cosmological constant case shows a steep increase in the scale factor compared to the other cases. We also note that the universe may have a bounce in the case of radiation depending on the sign of the coefficient of the leading classical correction.
description: 13 pages, 3 figures, Comments are welcome
Reduce positive and negative falses from attacks collected from the deployment of distributed honeypot network
Creators: name: Agnaou, Abdeljalil
name: Kalam, Anas Abou El
name: Ouahman, Abdellah Ait
name: De Montfort, Mina
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Current tools and systems of detecting vulnerabilities simply alert the administrator of attempted attacks against his network or system. However, generally, the huge number of alerts to analyze and the amount time required to update security rules after analyzing alerts provides time and opportunity for the attacker to inflict damages. Moreover, most of these tools generate positive and negative falses, which may be important to the attacked network. Otherwise, many solutions exist such as IPS, but it shows a great defect due, fundamentally, to false positives. Indeed, attackers often make IPS block a legitimate traffic when they detect its presence in the attacked network. In this paper we describe an automated algorithm that gives the ability to detect attacks before they occurrence, then reduce positive and negative falses rates. Moreover, we use a set of data related to malicious traffic captured using a network of honeypots to recognize potential threats sources.
North Saskatchewan River Basin: Overview of Groundwater Conditions, Issues and Challenges (Part 1)
Creators: North Saskatchewan Watershed Alliance (NSWA)
Publisher: name: University of Alberta Library
Year: 2009

This report provides a broad overview of groundwater conditions, issues, and challenges within the North Saskatchewan River basin. The study provides:  a snapshot of the current state of knowledge of the groundwater resources in the North Saskatchewan River basin; and, an integration of recent available information on water use and human activity to indicate where groundwater resources may be vulnerable or where knowledge is weak. (As cited in introduction.)