Article
Materials Science, Multidisciplinary
Shiva Heidari, Reza Asgari
Summary: The strong correlation between the nontrivial band topology and the magnetic texture makes magnetic Weyl semimetals excellent candidates for the manipulation and detection of magnetization dynamics.
Article
Physics, Multidisciplinary
Gabriel Schnoering, Samuel Albert, Antoine Canaguier-Durand, Cyriaque Genet
Summary: The study investigates the dynamics and energetics of overdamped Brownian chiral nanoparticles diffusing in symmetric bistable optical potentials, created by controlling the polarizations of two counterpropagating Gaussian beams. The chiral densities and fluxes in the optical environment exert reactive or dissipative chiral forces on the nanoparticles, leading to modifications in the thermal activation process depending on enantiomer type and optical field enantiomorphism. This optomechanical chiral coupling results in changes to the Helmholtz free energy and asymmetric barrier-crossing rates, unveiling new opportunities for chiral sensing and discrimination at the nanoscale.
Article
Optics
Felipe Isaule, Robert Bennett, Jorg B. Gotte
Summary: This study reveals the existence of polarizing quantum phases for the enantiomers of cold, interacting chiral molecules in an optical helicity lattice, where the discriminatory force exerted by alternating helicity separates molecules with different handedness.
Article
Optics
Jinxing Li, Yueyi Yuan, Guohui Yang, Qun Wu, Wei Zhang, Shah Nawaz Burokur, Kuang Zhang
Summary: This paper introduces a novel method for dispersion control in optical systems - chirality-assisted phase modulation, which allows for engineered dispersion characteristics of meta-atoms. Two hybrid dispersion-engineered metamirrors are constructed and tested to demonstrate the effectiveness and flexibility of this method. This research opens up a new approach for dispersion control and provides new insights for metasurface design.
LASER & PHOTONICS REVIEWS
(2023)
Article
Astronomy & Astrophysics
Shao-Feng Ge, Gang Li, Pedro Pasquini, Michael J. Ramsey-Musolf
Summary: The study reveals that future lepton colliders could test weak scale baryogenesis through CP-violating observables in Higgs boson ditau decays, with significant discovery potential. Measurements could potentially exclude CP phases above 2.9 degrees (5.6 degrees) or lead to 5 sigma discoveries within 82% of the CP phase range [0; 2 pi). The sensitivity of future lepton colliders could establish the presence of CP violation required by lepton flavored electroweak baryogenesis with at least a 3 sigma significance.
Article
Polymer Science
Jing Li, Sheng Wang, Huanjun Lu, Yanyan Tu, Xinhua Wan, Xiaohong Li, Yingfeng Tu, Christopher Y. Li
Summary: We demonstrate a bottom-up strategy for achieving helical crystals by chiral amplification in copolyesters through the incorporation of a small amount of (D)-isosorbide. The molecular chirality of isosorbide is transferred to the crystal chirality of poly(ethylene brassylate) and amplified by the formation of right-handed helical crystals. Increasing isosorbide content or reducing crystallization temperature leads to thinner PEB lamellae crystals, enhancing chiral amplification and improving the mechanical properties of aliphatic copolyesters.
Article
Materials Science, Multidisciplinary
Matthew W. Butcher, J. H. Pixley, Andriy H. Nevidomskyy
Summary: The study investigates the quantum phase transition of an Ising chain embedded in a bosonic bath with Ohmic dissipation through quantum-to-classical mapping and classical Monte Carlo simulation. The results show that a dissipative bosonic bath can induce a long-range ordered phase.
Article
Optics
Ludmila Viotti, Fernando C. Lombardo, Paula Villar
Summary: We apply a generalized kinematic approach to calculate the geometric phases acquired in two types of Jaynes-Cummings models, providing a comprehensive quantum description for the interaction between a two-level system and a single mode of the electromagnetic field in a perfect or dissipative cavity. Our method allows for a comparison of the geometric phases obtained in these models, enabling a thorough characterization of the corrections introduced by the presence of the environment. We also offer geometric interpretations for the observed behaviors, demonstrating the robustness of the geometric phase under nonunitary evolution when the resonance condition is satisfied.
Article
Physics, Fluids & Plasmas
Abhik Kumar Saha, Deb Shankar Ray, Bimalendu Deb
Summary: In this study, we analyze phase diffusion, quantum fluctuations, and their spectral features in a one-dimensional Bose-Josephson junction (BJJ) coupled to a bosonic heat bath. By considering the random modulations of the BJJ modes causing phase loss, we incorporate frequency modulation through a linear interaction term in the system-reservoir Hamiltonian. We examine the dependence of the phase diffusion coefficient on on-site interaction and temperature, and observe phase transition-like behavior between Josephson oscillation and macroscopic quantum self-trapping (MQST) regimes. We also investigate quantum fluctuations of the relative phase and population imbalance using fluctuation spectra that capture interesting shifts in Josephson frequency and splitting induced by nonlinear system-reservoir coupling and on-site interaction in the weak dissipative regime.
Article
Optics
Yu-Xia Xie
Summary: By introducing the interaction Hamiltonian, the measurement uncertainty of two incompatible observables can be significantly reduced, and enhancing entanglement leads to a decrease in measurement uncertainty for all cases considered.
LASER PHYSICS LETTERS
(2021)
Article
Physics, Multidisciplinary
Yu-Xia Xie
Summary: The study shows that the interaction Hamiltonian between two channel qubits coupled via the Heisenberg interaction enhances the teleportation fidelity and Bell nonlocality, even allowing for the creation of nonclassical effects from the initial product states. Additionally, the interaction Hamiltonian ensures the generation of steady-state nonclassical teleportation fidelity, which is independent of the initial state, allowing any state to be taken as the initial channel state.
COMMUNICATIONS IN THEORETICAL PHYSICS
(2021)
Article
Physics, Multidisciplinary
Rui-Xing Zhang, S. Das Sarma
Summary: Floquet chiral topological superconductivity naturally arises in Josephson junctions made of magnetic topological insulator-superconductor sandwich structures. Applying a bias voltage across the junction drives the system into an anomalous Floquet chiral topological superconductor with chiral Majorana edge modes in the quasienergy spectrum. The bias voltage serves as a tuning parameter enabling novel Floquet topological quantum phase transitions leading to exotic Majorana-carrying Floquet topological superconducting phases.
PHYSICAL REVIEW LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Shichao Sun, Bing Gu, Shaul Mukamel
Summary: Placing Mg-porphyrin molecules in a chiral optical cavity breaks time reversal symmetry, generating polariton ring currents with circular dichroism signals. The degeneracy of electronic states in the molecule is lifted by chiral polaritons, resulting in a signal one order of magnitude stronger than that induced by circularly polarized light. Enantiomer-selective photochemical processes in chiral optical cavities represent an intriguing future possibility.
Article
Multidisciplinary Sciences
Denis S. Tikhonov, Alexander Blech, Monika Leibscher, Loren Greenman, Melanie Schnell, Christiane P. Koch
Summary: Research shows that the net chirality of molecules can be probed by breaking the symmetry through exciting vibrational motion with laser, and current experimental technology can achieve this.
Article
Quantum Science & Technology
Nicolas Mirkin, Diego A. Wisniacki, Paula Villar, Fernando C. Lombardo
Summary: This work introduces a decoherent mechanism for sensing quantum chaos, which detects the chaotic nature of a many-body quantum system by studying the long-time dynamics of a probe coupled to it. The effectiveness of this sensing mechanism is confirmed for various systems with different characteristics, indicating its universality.
QUANTUM SCIENCE AND TECHNOLOGY
(2021)
Review
Chemistry, Physical
J. R. Manson, G. Benedek, Salvador Miret-Artes
Summary: This review provides a comprehensive analysis of atomic scattering on conducting surfaces, focusing on the elastic and inelastic scattering and the electron-phonon coupling mechanism in the surface electron density. The measurements of elastic and inelastic spectra of atomic scattering can reveal detailed information about the electron-phonon coupling mechanism in the surface electron density.
SURFACE SCIENCE REPORTS
(2022)
Review
Physics, Multidisciplinary
S. V. Mousavi, S. Miret-Artes
Summary: This review discusses open (dissipative and stochastic) quantum systems within the Bohmian mechanics framework, exploring gradual decoherence processes and different sources of decoherence. Several examples are presented to illustrate the physical principles behind these phenomena, emphasizing the use of trajectories for a clearer understanding.
FOUNDATIONS OF PHYSICS
(2022)
Article
Physics, Multidisciplinary
S. Mousavi, S. Miret-Artes
Summary: This article analyzes the impact of intrinsic decoherence and dissipative dynamics on backflow effect. Through a comparative analysis of the Milburn method and the Lindblad master equation, as well as an analysis of the quantum-to-classical transition using a linear scaled Schrödinger equation, the article demonstrates that backflow is gradually suppressed by the development of intrinsic decoherence.
JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL
(2022)
Article
Chemistry, Physical
E. E. Torres-Miyares, D. J. Ward, G. Rojas-Lorenzo, J. Rubayo-Soneira, W. Allison, S. Miret-Artes
Summary: The stochastic wave function method is proposed for studying the diffusion of alkali atoms on metallic surfaces. The Lindblad approach is used to characterize the diffusion of Na-Cu(111) and Li-Cu(111) systems. Comparisons between the calculated intermediate scattering function for isolated adsorbates and results from helium spin-echo experiments show good agreement in the Brownian limit. The results demonstrate that the 1-D quantum model can quantitatively describe the experimental observations.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Physical
Miguel Lara-Moreno, Hassiel Negrin-Yuvero, German Rojas-Lorenzo, John G. McCaffrey
Summary: In this study, the molecular dynamics with quantum transitions approach was used to simulate the spectroscopic characteristics of atomic zinc and cadmium isolated in solid rare gases. The absorption and emission spectra were simulated, and non-radiative processes were found to play a fundamental role in the transfer of population among the electronic states. Three distinct relaxation pathways were identified, two of which were related to the previous works on the formation of a square planar configuration, while the third pathway involved motion on a hexagonal close packed plane. The temperature dependence of complex formation was also determined for these pathways.
Article
Chemistry, Physical
Hassiel Negrin-Yuvero, Victor Manuel Freixas, Dianelys Ondarse-Alvarez, Laura Alfonso-Hernandez, German Rojas-Lorenzo, Adolfo Bastida, Sergei Tretiak, Sebastian Fernandez-Alberti
Summary: Photoinduced intramolecular energy transfers in multichromophoric molecules occur through specific motion directions guided by nonadiabatic coupling vectors, forming energy transfer funnels. Vibrational funnels can support persistent coherences between electronic states and reveal minor energy transfer pathways. Nonadiabatic excited-state molecular dynamics simulations with frozen nuclear motions can confirm the role of vibrational funnels in interchromophoric energy transfer. Our work highlights the usefulness of this strategy in identifying and evaluating the impact of vibrational funnels on energy transfer processes and guiding the design of materials with tunable properties and enhanced functionalities. Furthermore, we encourage the application of this methodology to various chemical and biochemical processes, such as reactive scattering and protein conformational changes.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Multidisciplinary Sciences
S. V. Mousavi, S. Miret-Artes
Summary: In this work, a smooth transition wave equation from quantum to classical regime is proposed in the framework of the von Neumann formalism for ensembles, and an equivalent scaled equation is obtained. This leads to the development of a scaled nonequilibrium statistical mechanics based on the well-known Wigner-Moyal approach. The scaled theory encompasses both classical and quantum ingredients, describing all dynamical regimes between the two extreme cases. Finally, a simple application of the scaled formalism to the reflection of a mirror is analyzed by computing various quantities.
Article
Chemistry, Physical
Eli Pollak, Salvador Miret-Artes
Summary: In this review, we summarize the recent developments in Kramers' theory of reaction rates. We emphasize the importance of this theory in chemical reactions and discuss the main theoretical formalism based on the generalized Langevin equation and the modern Pollak, Grabert and Hanggi theory. The applications of Kramers' theory in quantum and classical surface diffusion are outlined, and recent applications in various fields such as nanoparticle levitation, microcavity polariton dynamics, and reaction simulation in liquids are presented. The open problems and future challenges of Kramers turnover theory are also discussed.
Article
Chemistry, Physical
G. Benedek, J. R. Manson, Salvador Miret-Artes
Summary: Based on recent experimental data, this study suggests that the non-linear deviations of the Debye-Waller exponent temperature-dependence observed in conducting surfaces or supported metal overlayers with high-resolution He-atom scattering can identify the specific role of high-energy phonons in the surface electron-phonon mass-enhancement factor.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Astronomy & Astrophysics
Pedro Bargueno, Ernesto Contreras
Summary: In this work, we derive the Bekenstein-Hawking entropy formula, S = A/4l(p)(2), from minimal assumptions. These assumptions include the existence of a minimum area, A(min), proportional to l(p)(2); the event horizon area, A, being tessellated by distinguishable units; and these units having an infinite tower of internal levels. Our model-independent results can be realized as excitations of more fundamental entities, like strings or loop quantum gravity spin networks. When considering the microstates of the black hole as singlets within the infinite tower of states describing the whole event horizon, our model also yields the correction term - 3/2 log A. We also discuss the applicability of our model to extremal black holes and its potential relationships with spectral geometry and other approaches.
Article
Chemistry, Physical
J. R. Manson, S. Miret-Artes
Summary: This article reviews the work of the authors over several years, aiming to develop theoretical frameworks using classical physics to describe the scattering interactions between atoms and surfaces.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Chemistry, Physical
E. E. Torres-Miyares, G. Rojas-Lorenzo, J. Rubayo-Soneira, S. Miret-Artes
Summary: Surface diffusion is analyzed in terms of the intermediate scattering function in the time domain and reciprocal space. The open dynamics is studied using the master equation for the reduced density matrix within the Caldeira-Leggett formalism. Several characteristic magnitudes in this decoherence process are investigated. Comparison between analytical results and numerical analysis is also performed.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Chemistry, Physical
William Allison, Salvador Miret-Artes, Eli Pollak
Summary: Recent GIFAD experiments have shown that the distance between classical rainbow angles depends on the incident energy. Analyzing the experiments using classical perturbation theory, it is concluded that the dynamic corrugation amplitude is proportional to the tangent of the rainbow angle within first-order perturbation theory. This implies that the dynamic corrugation amplitude does not provide additional information compared to the rainbow angle and its energy dependence. Moreover, the resulting analytic theory reveals how the energy dependence of rainbow angles can be used to understand the force field governing the interaction between the incident projectile and the surface.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Astronomy & Astrophysics
Pedro Bargueno, Ernesto Contreras
Summary: In this work, we demonstrate that introducing an appropriate cutoff in the spectra of the Laplacian of a spherically symmetric and static black hole reveals an equivalence between shape and holographic degrees of freedom. Furthermore, the introduced cutoff leads to a correction to the Bekenstein-Hawking entropy that resembles the corrections found in holographic loop quantum gravity, generalized uncertainty principle, and entanglement entropy. However, extending these results to nonspherically symmetric black holes remains challenging.
