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The equilibrium ON and OFF states of resistive random access memory (RRAM) are due to formation and destruction of a conducting filament. The laws of thermodynamics dictate that these states correspond to the minimum of free energy. Here,…

介观与纳米尺度物理 · 物理学 2018-12-05 Dipesh Niraula , Victor Karpov

In recent years, pi-conjugated polymers are attracting considerable interest in view of their light-dependent torsional reorganization around the pi-conjugated backbone, which determines peculiar light-emitting properties. Motivated by the…

化学物理 · 物理学 2021-05-19 Mariagrazia Fortino , Concetta Cozza , Massimiliano Bonomi , Adriana Pietropaolo

We present a multichannel photoelectron interferometry technique based on trichromatic pulse shaping for unambiguous determination of quantum phases in multiphoton ionization (MPI) of potassium atoms. The colors of the laser field are…

原子物理 · 物理学 2022-05-25 K. Eickhoff , D. Köhnke , L. Feld , T. Bayer , M. Wollenhaupt

Physics-informed machine learning (PIML) has emerged as a promising alternative to classical methods for predicting dynamical systems, offering faster and more generalizable solutions. However, existing models, including recurrent neural…

机器学习 · 计算机科学 2025-01-28 Zheyuan Hu , Nazanin Ahmadi Daryakenari , Qianli Shen , Kenji Kawaguchi , George Em Karniadakis

We investigate the role of the permutationally invariant part of the density matrix (PIDM) in capturing the properties of the ground state of the system during a quantum phase transition. In the context of quantum state tomography, PIDM is…

统计力学 · 物理学 2025-12-18 Yuki Miyazaki , Giacomo Marmorini , Nobuo Furukawa , Daisuke Yamamoto

The W state, as a robust multipartite entangled state, plays an important role in quantum information processing, quantum network construction and quantum computing. In this paper, we encode quantum information on the effective energy…

量子物理 · 物理学 2025-09-23 Liping Yang , Jiping Wang , Li Dong , Xiaoming Xiu , Yanqiang Ji

Efficient initialization and manipulation of quantum states is important for numerous applications and it usually requires the ability to perform high fidelity and robust swapping of the populations of quantum states. Stimulated Raman…

量子物理 · 物理学 2023-03-01 Genko T. Genov , Simon Rochester , Marcis Auzinsh , Fedor Jelezko , Dmitry Budker

We study the nonequilibrium stationary state of a one-dimensional inertial run-and-tumble particle (IRTP) trapped in a harmonic potential. We find that the presence of inertia leads to two distinct dynamical scenarios, namely, overdamped…

统计力学 · 物理学 2025-05-21 Debraj Dutta , Anupam Kundu , Sanjib Sabhapandit , Urna Basu

Run-and-Tumble Particles (RTPs) are a key model of active matter. They are characterized by alternating phases of linear travel and random direction reshuffling. By this dynamic behavior, they break time reversibility and energy…

概率论 · 数学 2025-07-18 Arnaud Guillin , Leo Hahn , Manon Michel

Periodic forcing of an oscillatory system produces frequency locking bands within which the system frequency is rationally related to the forcing frequency. We study extended oscillatory systems that respond to uniform periodic forcing at…

patt-sol · 物理学 2009-10-31 Christian Elphick , Aric Hagberg , Ehud Meron

As a result of the competition between self-propulsion and excluded volume interactions, purely repulsive self-propelled spherical particles undergo a motility-induced phase separation (MIPS). We carry out a systematic computational study,…

软凝聚态物质 · 物理学 2017-03-08 Demian Levis , Joan Codina , Ignacio Pagonabarraga

Reaction-diffusion systems driven far from thermodynamic equilibrium through the injection of energy can support multiple distinct spatial patterns that persist as long-lived dynamical phases. The stability of these metastable phases is not…

统计力学 · 物理学 2026-03-13 Eric R. Heller , David T. Limmer

We explore a large class of correlation measures called the $\alpha-z$ R\'enyi mutual informations (RMIs). Unlike the commonly used notion of RMI involving linear combinations of R\'enyi entropies, the $\alpha-z$ RMIs are positive…

高能物理 - 理论 · 物理学 2024-08-27 Jonah Kudler-Flam , Laimei Nie , Akash Vijay

The emission spectra of many pi-conjugated polymers and oligomers contain side-band replicas with apparent frequencies that do not match the Raman active mode frequencies. Using a time dependent model we show that in such many mode systems,…

其他凝聚态物理 · 物理学 2007-05-23 E. Ehrenfreund , C. C. Wu , Z. V. Vardeny

A continuously measured quantum system may be described by restricted path integrals (RPI) or equivalently by non-Hermitian Hamiltonians. The measured system is then considered as an open system, the influence of the environment being taken…

量子物理 · 物理学 2007-05-23 Michael B. Mensky

Excited-state molecular dynamics (ESMD) simulations near conical intersections (CIs) pose significant challenges when using machine learning potentials (MLPs). Although MLPs have gained recognition for their integration into mixed…

化学物理 · 物理学 2025-01-17 Sung Wook Moon , Soohaeng Yoo Willow , Tae Hyeon Park , Seung Kyu Min , Chang Woo Myung

Two-dimensional Raman and hybrid terahertz/Raman spectroscopic techniques provide invaluable insight into molecular structure and dynamics of condensed-phase systems. However, corroborating experimental results with theory is difficult due…

化学物理 · 物理学 2022-04-13 Tomislav Begušić , Xuecheng Tao , Geoffrey A. Blake , Thomas F. Miller

With Motor-Imagery (MI) Brain--Machine Interfaces (BMIs) we may control machines by merely thinking of performing a motor action. Practical use cases require a wearable solution where the classification of the brain signals is done locally…

信号处理 · 电气工程与系统科学 2021-02-23 Xiaying Wang , Tibor Schneider , Michael Hersche , Lukas Cavigelli , Luca Benini

In recent years, Adiabatic Connection Interpolations developed within Density Functional Theory (DFT) have been found to provide satisfactory performances in the calculation of interaction energies when used with Hartree-Fock (HF)…

化学物理 · 物理学 2023-07-21 Sara Giarrusso , Aurora Pribram-Jones

We apply Thermostatted Ring Polymer Molecular Dynamics (TRPMD), a recently-proposed approximate quantum dynamics method, to the computation of thermal reaction rates. Its short-time Transition-State Theory (TST) limit is identical to…

化学物理 · 物理学 2015-08-20 Timothy J. H. Hele , Yury V. Suleimanov