Miracle-dz/UniFAR-FTUs huggingface dataset:
Induced electroweak symmetry breaking and supersymmetric naturalness

In this paper we study a new class of supersymmetric models that can explain a 125 GeV Higgs without fine-tuning. These models contain additional `auxiliary Higgs' fields with large tree-level quartic interaction terms but no Yukawa couplings. These have electroweak-breaking vacuum expectation values, and contribute to the VEVs of the MSSM Higgs fields either through an induced quartic or through an induced tadpole. The quartic interactions for the auxiliary Higgs fields can arise from either D-terms or F-terms. The tadpole mechanism has been previously studied in strongly-coupled models with large D-terms, referred to as `superconformal technicolor. ' The perturbative models studied here preserve gauge coupling unification in the simplest possible way, namely that all new fields are in complete SU(5) multiplets. The models are consistent with the observed properties of the 125 GeV Higgs-like boson as well as precision electroweak constraints, and predict a rich phenomenology of new Higgs states at the weak scale. The tuning is less than 10% in almost all of the phenomenologically allowed parameter space. If electroweak symmetry is broken by an induced tadpole, the cubic and quartic Higgs self-couplings are significantly smaller than in the standard model.
Effects of intense optical phonon pumping on the structure and electronic properties of yttrium barium copper oxide

We investigate the structural modulations induced by optical excitation of a polar phonon mode in ${\mathrm{YBa}}_{2}{\mathrm{Cu}}_{3}{\mathrm{O}}_{7}$ using first-principles calculations based on density functional theory. We focus on the intense-excitation regime in which we expect that fourth-order phonon-phonon coupling terms dominate and model the structural modulations induced by pulses of such intensity. Our calculations of the phonon-phonon anharmonicities confirm that the cubic coupling between modes, shown in earlier work to cause a quasistatic change in the apical O-Cu distance and a buckling of the ${\mathrm{CuO}}_{2}$ planes, is the leading contribution at moderate pump strengths. At higher pump strengths ($\ensuremath{\sim}10\phantom{\rule{0.16em}{0ex}}\mathrm{MV}/\mathrm{cm}$) the previously neglected quartic couplings become relevant and produce an additional shearing of the ${\mathrm{CuO}}_{2}$ planes. Finally, we analyze the changes in the electronic and magnetic properties associated with the induced structural changes.
Generation of two-mode entangled states by quantum reservoir engineering

A method for generating entangled cat states of two modes of a microwave cavity field is proposed. Entanglement results from the interaction of the field with a beam of atoms crossing the microwave resonator, giving rise to non-unitary dynamics of which the target entangled state is a fixed point. We analyse the robustness of the generated two-mode photonic ‘cat state’ against dephasing and losses by means of numerical simulation. This proposal is an instance of quantum reservoir engineering of photonic systems.
Limits on the WIMP-nucleon scattering cross-section from neutrino telescopes

Neutrino-telescopes like Super-Kamiokande and IceCube have started to explore the neutrino fluxes from WIMP annihilations in the Sun. The non-observation of a signal can put constraints on the WIMP properties. We here focus on the neutrino signal from WIMP annihilation in the Sun and show that under reasonable assumptions, the non-observation of a signal from IceCube puts a much tighter constraint on the spin-dependent WIMP-proton scattering cross-section than current direct detection experiments like COUPP and KIMS. For the spin-independent scattering cross-section, the limits from IceCube and current direct detection experiments like XENON10 and CDMS place similar constraints. We here go through the assumptions being made and the uncertainties that arise in converting from limits on the muon flux from the Sun to limits on the WIMP-proton cross-section, and present our results as easy to use conversion factors.
Reassessing thermodynamic and dynamic constraints on global wind power

Starting from basic physical principles, we present a novel derivation linking the global wind power to measurable atmospheric parameters. The resulting expression distinguishes three components of the atmospheric power (the kinetic power associated with horizontal and vertical motion and the gravitational power of precipitation) and highlights problems with previous approaches. Focusing on Lalibert\'e et al. (2015), we show how inappropriate treatment of material derivatives in the presence of phase transitions leads to significant errors in wind power analyses. We discuss the physical constraints on global wind power and the opportunities provided by considering the dynamic effects of water vapor condensation.
A face mask detection system: An approach to fight with COVID‐19 scenario

A new coronavirus has caused a pandemic crisis around the globe. According to the WHO, this is an infectious illness that spreads from person to person. Therefore, the only way to avoid this infection is to take precautions. Wearing a mask is the most critical COVID‐19 protection method because it prevents the virus from spreading from an infected person to a healthy one. This study reflects a deep learning method to create a system for detecting Face Masks. The paper proposes a unique FMDRT (Face Mask Dataset in Real‐Time) dataset to determine whether a person is wearing a mask or not. The RFMD and Face Mask datasets are also taken from the internet to evaluate the performance of the proposed method. The CLAHE preprocessing method is employed to enhance the image quality, then resizing and Image augmentation techniques are used to convert it into a standard format and increase the size of the dataset, respectively. The pretrained Caffe face detector model is used to detect the faces, and then the lightweight transfer learning‐based Xception model is applied for the feature extraction process. This paper recommended a novel model that is, CL‐SSDXcept to distinguish the Face Mask or no mask images. However, accession with the MobileNetV2, VGG16, VGG19, and InceptionV3 models with different hyperparameter settings has been tested on the FMDRT dataset. We have also compared the results of the synthesized dataset FMDRT to the existing Face Mask datasets. The experimental results attained 98% test accuracy on the suggested dataset ‘FMDRT’ using the CL‐SSDXcept method. The empirical findings have been reported at 50 iterations with tuned hyperparameter values with an average accuracy 98% and a loss of 0.05.
Spin Hall effect on the kagome lattice with Rashba spin-orbit interaction

We study the spin Hall effect in the kagome lattice with Rashba spin-orbit coupling. The conserved spin Hall conductance sigma(s)(xy) (see text) and its two components, i.e., the conventional term sigma(s0)(xy) and the spin-torque-dipole term sigma(s tau)(xy), are numerically calculated, which show a series of plateaus as a function of the electron Fermi energy epsilon(F). A consistent two-band analysis, as well as a Berry-phase interpretation, is also given. We show that these plateaus are a consequence of various Fermi-surface topologies when tuning epsilon(F). In particular, we predict that compared to the case with the Fermi surface encircling the Gamma point in the Brillouin zone, the amplitude of the spin Hall conductance with the Fermi surface encircling the K points is twice enhanced, which makes it highly meaningful in the future to systematically carry out studies of the K-valley spintronics.
Outer Billiards on Regular Polygons

In [M1] (1973), J. Moser proposed that his Twist Theorem could be used to show that orbits of the outer billiards map on a sufficiently smooth closed curve were always bounded. He asked the same question for a convex polygon in [M2] (1978). In [VS] (1987) F.Vivaldi and A. Shaidenko showed that all orbits for a regular polygon must be bounded. More recently, R. Schwartz [S1] showed that a quadrilateral known as a Penrose Kite has unbounded orbits and he proposed that ‘most’ convex polygons support unbounded orbits.
Enhancement of the thermoelectric figure of merit in a quantum dot due to the Coulomb blockade effect

We investigate the figure of merit of a quantum dot (QD) in the Coulomb blockade regime. It is found that the figure of merit $ZT$ may be quite high if only single-energy level in the QD is considered. On the other hand, with two or multienergy levels in the QD and without the Coulomb interaction, the $ZT$ is strongly suppressed by the bipolar effect due to small level spacing. However, in the presence of the Coulomb interaction, the effective level spacing is enlarged and the bipolar effect is weakened, resulting in $ZT$ to be considerably high. Thus, it is more likely to find a high efficient thermoelectric QDs with large Coulomb interaction. By using the parameters for a typical QD, the $ZT$ can reach over 5.
Daily Job Crafting and Adaptive Performance During Organizational Change: The Moderating Role of Managers’ Influence Tactics

Is job crafting relevant for adaptive performance in the absence of managers’ effective influence tactics and the presence of ineffective tactics? Based on job demands-resources and conservation of resources theories, we examined whether employee daily job crafting behaviors (i.e., resources seeking, challenges seeking, demands reducing) interact with overall managers’ influence tactics during times of organizational change in explaining change outcomes. Twenty-nine hotel employees completed a questionnaire to evaluate their managers’ influence tactics, and then a diary for five consecutive workdays to assess daily job crafting behaviors and daily adaptive performance during a large-scale change. Multilevel analyses revealed that daily seeking resources related positively to adaptive performance particularly when specific managers’ influence tactics were low. These findings imply that employees compensate for the absence of managers’ influence tactics by seeking resources in order to facilitate their own adaptation to organizational changes.
PROBING THE BIRTH OF POST-MERGER MILLISECOND MAGNETARS WITH X-RAY AND GAMMA-RAY EMISSION

There is growing evidence that a stable magnetar could be formed from the coalescence of double neutron stars. In previous papers, we investigated the signature of formation of stable millisecond magnetars in radio and optical/ultraviolet bands by assuming that the central rapidly rotating magnetar deposits its rotational energy in the form of a relativistic leptonized wind. We found that the optical transient PTF11agg could be the first evidence for the formation of post-merger millisecond magnetars. To enhance the probability of finding more evidence for the post-merger magnetar formation, it is better to extend the observational channel to other photon energy bands. In this paper, we propose to search the signature of post-merger magnetar formation in X-ray and especially gamma-ray bands. We calculate the synchrotron self-Compton (SSC) emission of the reverse shock powered by post-merger millisecond magnetars. We find that the SSC component peaks at in the spectral energy distribution and extends to for typical parameters. These energy bands are quite suitable for Fermi Large Area Telescope and Cherenkov Telescope Array (CTA), which, with their current observational sensitivities, can detect the SSC emission powered by post-merger magnetars up to . NuSTAR, which is sensitive in X-ray bands, can detect the formation of post-merger millisecond magnetars at redshift . Future improvements in the sensitivity of CTA can also allow us to probe the birth of post-merger millisecond magnetars at redshift . However, because of the γ−γ collisions, strong high-energy emission is clearly predicted only for ejecta masses lower than .
Microbolometer compatible metamaterial absorber for multispectral imaging

Mid-wave and long-wave infrared (IR) are two bands of interest for uncooled infrared imaging cameras. While longwave infrared detectors are sensitive to human body temperature, mid-wave infrared detectors are useful to detect “hot sources”. In addition, various gases have absorption bands in the mid-wave IR range, so that environmental monitoring or gas detection should be mentioned as further applications. To realize multispectral uncooled thermal imaging detectors, Fraunhofer IMS investigated the absorption properties of plasmonic metamaterial absorbers made of metal-insulator-metal (MIM) structures. High and multispectral absorption is particularly desirable for various microengineering applications, including microbolometers. The MIM absorbers are developed to be adaptable to Fraunhofer IMS nanotube microbolometer technology. We report here the first results of simulation and experimental characterization of MIM test structures for multispectral absorption. The test structures consist of upper periodic metal structures, a middle dielectric layer and a lower metal reflector layer to produce surface plasmon resonance at desired absorption wavelengths. For a CMOS-compatible MIM absorber, various materials and thicknesses are being studied to realize selective absorption. We demonstrate the optical characterization of the test structures by Fourier transform infrared (FTIR) measurements and the influence of size, thickness and materials of MIM structures to achieve high selective absorption in a narrow wavelength range.
MAJOR MERGING: THE WAY TO MAKE A MASSIVE, PASSIVE GALAXY

We analyze the projected axial ratio distribution, p(b/a), of galaxies that were spectroscopically selected from the Sloan Digital Sky Survey (DR6) to have low star formation rates. For these quiescent galaxies we find a rather abrupt change in p(b/a) at a stellar mass of ∼1011 M☉: at higher masses there are hardly any galaxies with b/a < 0.6, implying that essentially none of them have disk-like intrinsic shapes and must be spheroidal. This transition mass is ∼3–4 times higher than the threshold mass above which quiescent galaxies dominate in number over star-forming galaxies, which suggests that these mass scales are unrelated. At masses lower than ∼1011 M☉, quiescent galaxies show a large range in axial ratios, implying a mix of bulge- and disk-dominated galaxies. Our result strongly suggests that major merging is the most important, and perhaps only relevant, evolutionary channel to produce massive (>1011 M☉), quiescent galaxies, as it inevitably results in spheroids.
Motion of quantum particle in dilute Bose-Einstein condensate at zero temperature

The motion of single quantum particle through Bose-Einstein condensate (BEC) is considered within perturbation theory with respect to the particle-BEC interaction. The Hamiltonian of BEC is diagonalized by means of Bogoliubov's method. The process of dissipation due to the creation of excitation in BEC is analyzed and the dissipation rate is calculated in the lowest order of perturbation theory. The Landau's criterion for energy dissipation in BEC is then recovered. The energy spectrum of the impurity particle due to the interaction with BEC and its effective mass are evaluated.
Workplace Aesthetic Appreciation and Exhaustion in a COVID-19 Vaccination Center: The Role of Positive Affects and Interest in Art

Background: Recently, workers employed in vaccination points around the world have been subjected to very high workloads to counter the progress of the COVID-19 epidemic. This workload has a negative effect on their well-being. Environmental psychology studies have shown how the physical characteristics of the workplace environment can influence employees’ well-being. Furthermore, studies in the psychology of art show how art can improve the health of individuals. Objectives: The aim of this research was to test a moderated mediation model to verify how appreciation of workplace aesthetics can impact the level of exhaustion of staff working in a vaccination center, the mediating role of positive and negative affects, and the moderating role of interest in art. Methods: Data were collected from a sample of 274 workers (physicians, nurses, reception, and administrative staff) working in the same vaccination center in Italy. Participants answered a self-report questionnaire during a rest break. We used a cross-sectional design. Results: The results show that appreciation of workplace aesthetics impacts employees’ level of exhaustion. This relationship is mediated by positive and negative affects, and interest in art moderates the relationship between positive affects and exhaustion. Conclusions: These findings indicate the central role of workplace aesthetics in influencing healthcare workers’ well-being, and how interest in art can reduce exhaustion levels. Practical implications of the results are discussed.
On the nature of the apparent ring galaxy SDSS J075234.33+292049.8

We show that an object classified as a galaxy in on-line data bases and revealed on sky survey images as a distant ring galaxy is a rare case of polar ring galaxy (PRG) where the ring is only slightly inclined to the equatorial plane of the central body (CB). Imaging information from the Sloan Digital Sky Survey (SDSS) indicates that the diameter of the ring is about 36 kpc. The SDSS data was combined with long-slit spectroscopic observations and with Fabry-Perot interferometer Hβ mapping obtained at the Russian Academy of Sciences 6-m telescope. We derived the complex morphologies of this presumed ring galaxy from a combination of SDSS images and from the kinematical behaviour of the CB and of the ring, and determined the stellar population compositions of the two components from the SDSS colours, from the spectroscopy and from models of evolutionary stellar synthesis. The metallicity of the ring material is slightly underabundant. The total luminosity and the total mass of the system are not extreme, but the rather high M/L ≃ 20 indicates the presence of large amounts of dark matter. We propose two alternative explanations of the appearance of this object. One is a ring formed by two semicircular and tight spiral arms at the end of a central bar. The apparent inclination between the ring and the CB, and a strange kink at the north-east end of the ring, could be the result of a warp or of precession of the ring material. The object could, therefore, be explained as an extreme SBa(R) galaxy. The other possibility is that we observe a PRG where the inner object is an S0 and the ring is significantly more luminous than the central object. The compound object would then be similar to the NGC 4650A galaxy, but then it would be a rare object, with a polar component only modestly inclined to the equatorial plane of the CB. Arguments for (and against) both explanations are given and discussed, with the second alternative being more acceptable.
Quantum-Classical Correspondence Principle for Work Distributions

For closed quantum systems driven away from equilibrium, work is often defined in terms of projective measurements of initial and final energies. This definition leads to statistical distributions of work that satisfy nonequilibrium work and fluctuation relations. While this two-point measurement definition of quantum work can be justified heuristically by appeal to the first law of thermodynamics, its relationship to the classical definition of work has not been carefully examined. In this paper we employ semiclassical methods, combined with numerical simulations of a driven quartic oscillator, to study the correspondence between classical and quantal definitions of work in systems with one degree of freedom. We find that a semiclassical work distribution, built from classical trajectories that connect the initial and final energies, provides an excellent approximation to the quantum work distribution when the trajectories are assigned suitable phases and are allowed to interfere. Neglecting the interferences between trajectories reduces the distribution to that of the corresponding classical process. Hence, in the semiclassical limit, the quantum work distribution converges to the classical distribution, decorated by a quantum interference pattern. We also derive the form of the quantum work distribution at the boundary between classically allowed and forbidden regions, where this distribution tunnels into the forbidden region. Our results clarify how the correspondence principle applies in the context of quantum and classical work distributions, and contribute to the understanding of work and nonequilibrium work relations in the quantum regime.
The Local Semicircle Law for Random Matrices with a Fourfold Symmetry

We consider real symmetric and complex Hermitian random matrices with the additional symmetry $h_{xy}=h_{N-x,N-y}$. The matrix elements are independent (up to the fourfold symmetry) and not necessarily identically distributed. This ensemble naturally arises as the Fourier transform of a Gaussian orthogonal ensemble (GOE). It also occurs as the flip matrix model - an approximation of the two-dimensional Anderson model at small disorder. We show that the density of states converges to the Wigner semicircle law despite the new symmetry type. We also prove the local version of the semicircle law on the optimal scale.
AESM2 Attribute-Based Encrypted Search for Multi-Owner and Multi-User Distributed Systems

With the rapid development of cloud computing, it is popular for data owners to outsource massive data to the cloud server for data sharing. To protect the privacy of sensitive data, many searchable encryption schemes are proposed. However, most of the existing studies focus on the single-owner model. In practice, users need to query data from distributed owners one by one, which inevitably brings great communication and computation overheads. Moreover, it lacks a secure scheme that realizes the access control requirements of individual owners. In this article, we propose AESM<inline-formula><tex-math notation="LaTeX">$^{2}$</tex-math><alternatives><mml:math><mml:msup><mml:mrow/><mml:mn>2</mml:mn></mml:msup></mml:math><inline-graphic xlink:href="jia-ieq1-3216320.gif"/></alternatives></inline-formula>, a new attribute-based encrypted search with ownership enhancement scheme for multi-owner and multi-user distributed systems. Our design enables users to search data from authorized owners with only one trapdoor. Owners can enforce owner level permission on users and encrypt their data individually with fine-grained attribute level permission. For practical consideration, we further devise an efficient revocation method of the owner level permission for users, where ciphertexts do not need to be updated. We formally define and prove the security of our design. Moreover, we implement a system prototype and analyze the performance from theoretical and experimental aspects. The evaluation results demonstrate that our scheme is effective and efficient.