Article
Multidisciplinary Sciences
Li Quan, Simon Yves, Yugui Peng, Hussein Esfahlani, Andrea Alu
Summary: Willis coupling in acoustics, which involves coupling between pressure and particle velocity, can be utilized for controlling and manipulating sound scattering through geometrically asymmetric structures.
NATURE COMMUNICATIONS
(2021)
Article
Multidisciplinary Sciences
Yuki M. Itahashi, Toshiya Ideue, Shintaro Hoshino, Chihiro Goto, Hiromasa Namiki, Takao Sasagawa, Yoshihiro Iwasa
Summary: The authors observe second-order nonlinear transport in time-reversal-symmetric PbTaSe2, where the nonlinearity is enhanced in the superconducting state.
NATURE COMMUNICATIONS
(2022)
Article
Physics, Multidisciplinary
Yotam Shapira, Tom Manovitz, Nitzan Akerman, Ady Stern, Roee Ozeri
Summary: Research on many-body systems of quantum interacting particles with broken time-reversal symmetry is important for understanding a variety of collective behaviors. Quantum simulators are potential tools for exploring and understanding such systems. However, achieving programmable interactions, strong time-reversal symmetry breaking, and high-fidelity quantum control in a scalable manner is challenging.
Article
Multidisciplinary Sciences
Dieter Schuch, Moise Bonilla-Licea
Summary: Shortly after Schrödinger's wave mechanics, Madelung formulated it in terms of real hydrodynamic-like equations. This formulation is the basis of Bohmian mechanics with a different interpretation. The criticism against Bohmian mechanics is its lack of symmetry between position and momentum, which is present in classical phase space and quantum mechanical representations. Madelung's formulation and Bohmian mechanics are usually expressed in position space only. Recently, we extended this formalism to include dissipative systems with broken time-reversal symmetry.
Article
Physics, Fluids & Plasmas
Yan V. Fyodorov, Elizaveta Safonova
Summary: Using the method of random matrix theory with supersymmetry within the framework of the Heidelberg approach, this study provides a statistical description of stationary intensity inside an open wave-chaotic cavity. It is shown that the probability density of single-point intensity decays as a power law for large intensities when incoming waves are fed via a finite number of open channels, with a marked difference from the Rayleigh law. The joint probability density of intensities in multiple observation points and the statistics for the maximal intensity in the observation pattern are also analyzed.
Article
Physics, Fluids & Plasmas
Niklas Grimm, Annette Zippelius, Matthias Fuchs
Summary: This article characterizes the effect of collision rules on velocity correlations in a system of hard spheres. The results show that there are long-range correlations between velocities in a nonequilibrium state, which is consistent with previous research findings.
Article
Physics, Multidisciplinary
Xiaoliang Xiao, Fangyang Zhan, Weixiang Kong, Jing Fan, Rui Wang, Xiaozhi Wu
Summary: In this study, a van der Waals heterostructure ZrTe5/Cr2Ge2Te6 is found to realize a robust time-reversal symmetry-breaking quantum spin Hall state through first-principles calculations and topology analysis. The presence of the time-reversal symmetry-breaking quantum spin Hall phase is confirmed by utilizing topological edge states and spin Hall conductance, which can be directly measured in experiments. The authors also discover that the built-in electric field is essential for realizing such a topological state, and an external electric field can effectively tune the nontrivial band gap.
NEW JOURNAL OF PHYSICS
(2022)
Article
Physics, Multidisciplinary
Hamidreza Emamipour
Summary: This study investigates the tunneling conductance in graphene-based ferromagnet-normal metal-superconductor junction with time-reversal symmetry broken. It is found that exchange field of ferromagnet suppresses the tunneling conductance for various pairing states, but increases when Fermi wave mismatch is present. Adjusting bias voltages and junction parameters can help differentiate between different symmetry states.
Article
Optics
H. K. Avetissian, V. N. Avetisyan, B. R. Avchyan, G. F. Mkrtchian
Summary: This paper investigates the nonlinear interaction between a Weyl semimetal and a strong driving electromagnetic wave field, analyzing the high-order harmonic generation spectra in the Weyl semimetal with broken time-reversal symmetry. The results show that the spectra in the Weyl semimetal are completely different compared to the two-dimensional graphene case.
Article
History & Philosophy Of Science
Cristian Lopez, Michael Esfeld
Summary: In this paper, we propose an alternative interpretation of time-reversal symmetry in philosophy of physics: Humean time-reversal symmetry. According to this interpretation, time-reversal symmetry is understood as a heuristic, epistemic virtue of the best system, rather than a property of the Humean mosaic. One consequence of this view is that one of the main arguments against a primitive direction of time is rendered harmless, paving the way for primitivism about the direction of time.
Article
Materials Science, Multidisciplinary
Joseph Poata, Fabio Taddei, Michele Governale
Summary: In this paper, the occurrence and features of corner states in convex polygon flakes are theoretically studied. The presence of corner states between two given edges is determined by analyzing the sign of their induced masses, and general rules for convex polygon flakes are derived. Numerical simulations are conducted to validate the theoretical findings.
Article
Engineering, Multidisciplinary
Kadry Zakaria, Abdullah M. Alsharif
Summary: The linear instability of a planar jet surrounded by an inviscid gas medium is investigated with the presence of odd viscosity for various modes. Previous studies did not consider the role of odd viscosity in measuring growth rate, wave number, instability limit, and breakup length. Odd viscosity is a stabilizing factor for liquid sheets but can be unstable in certain cases due to model parameters. Sprays are widely used in the production of metal alloys, metal powders, and downstream metal manufacturing processes, particularly in the steel industry.
ALEXANDRIA ENGINEERING JOURNAL
(2023)
Article
Multidisciplinary Sciences
Kohei Matsuura, Masaki Roppongi, Mingwei Qiu, Qi Sheng, Yipeng Cai, Kohtaro Yamakawa, Zurab Guguchia, Ryan P. Day, Kenji M. Kojima, Andrea Damascelli, Yuichi Sugimura, Mikihiko Saito, Takaaki Takenaka, Kota Ishihara, Yuta Mizukami, Kenichiro Hashimoto, Yilun Gu, Shengli Guo, Licheng Fu, Zheneng Zhang, Fanlong Ning, Guoqiang Zhao, Guangyang Dai, Changqing Jin, James W. Beare, Graeme M. Luke, Yasutomo J. Uemura, Takasada Shibauchi
Summary: Iron-chalcogenide superconductors FeSe1-xSx have unique electronic properties and the nature of superconductivity with nematicity is important for understanding unconventional superconductivity. Recent experiments show that the superconducting state in FeSe1-xSx breaks time-reversal symmetry and exhibits ultranodal pair state. The presence of broken TRS and suppressed superfluid density suggests the existence of two different superconducting states separated by the nematic critical point.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Physics, Multidisciplinary
Tian-Shu Deng, Lei Pan, Yu Chen, Hui Zhai
Summary: This study investigates the stability of Kramers degeneracy and nontrivial topological states under time-reversal symmetry against coupling to the environment. The results show that dissipation can lead to splitting of spectral functions for degenerate states and induce backscattering between counterpropagating edge states, causing the absence of accurate quantization of conductance in the case of the quantum spin Hall effect. The findings have implications for interacting topological phases protected by time-reversal symmetry.
PHYSICAL REVIEW LETTERS
(2021)
Article
Physics, Multidisciplinary
John Bonini, Shang Ren, David Vanderbilt, Massimiliano Stengel, Cyrus E. Dreyer, Sinisa Coh
Summary: Conventional approaches for lattice dynamics in magnetic systems do not consider the effects of time-reversal-symmetry breaking. Recent studies propose a method that combines the first-order change in forces with atomic velocities to rectify this issue. In this Letter, a first-principles method is developed to calculate the velocity-force coupling in extended solids, and it is shown that the assumption of adiabatic separation can lead to significant errors for splittings of zone-center chiral modes in ferromagnetic CrI3. The accurate description of lattice dynamics requires treating magnons and phonons equally.
PHYSICAL REVIEW LETTERS
(2023)