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Noise-induced transitions between metastable fixed points in systems evolving on multiple time scales are analyzed in situations where the time scale separation gives rise to a slow manifold with bifurcation. This analysis is performed…

统计力学 · 物理学 2017-10-05 Tobias Grafke , Eric Vanden-Eijnden

We present experimental evidence for a first-order freezing/melting phase transition in a nonequilibrium system -- an oscillated two-dimensional isobaric granular fluid. The steady-state transition occurs between a gas and a crystal and is…

软凝聚态物质 · 物理学 2007-05-23 M. D. Shattuck

We derive the driving potential that accelerates adiabatic population transfer from an initial state to a target state in a lattice system without unwanted excitation of other states by extending to discrete systems the fast-forward theory…

量子气体 · 物理学 2015-06-17 Shumpei Masuda , Stuart A. Rice

Experimental data from an experiment on drift--waves in plasma is presented. The experiment provides a space--time diagnostic and has a control parameter that permits the study of the transition from a stable plasma to a turbulent plasma.…

chao-dyn · 物理学 2015-06-24 Alex Madon , Thomas Klinger

The statistics of transitions between the metastable states of a periodically driven bistable Brownian oscillator are investigated on the basis of a two-state description by means of a master equation with time-dependent rates. The results…

数据分析、统计与概率 · 物理学 2011-11-09 Peter Talkner , Lukasz Machura , Michael Schindler , Peter Hanggi , Jerzy Luczka

The proposed switching mechanism is based on an electronically-induced metal-insulator transition occurring in conditions of the excess non-equilibrium carrier density under the applied electric field. First, this mechanism is developed on…

材料科学 · 物理学 2007-05-23 P. P. Boriskov , A. L. Pergament , A. A. Velichko , G. B. Stefanovich , N. A. Kuldin

We discovered a hysteresis in a microwave-driven low-pressure argon plasma during gas pressure change across the transition region between $\alpha$ and $\gamma$ discharge modes. The hysteresis is manifested in that the critical pressure of…

等离子体物理 · 物理学 2022-10-26 Kyungtae Kim , Woojin Nam , Jimo Lee , Seungbo Shim , Gunsu S. Yun

The transition of a warm dense fluid hydrogen from insulator to a conducting state at pressures of the order of 20-300 GPa and temperatures of 1000-5000 K has been the subject of active scientific research over the past few decades. The use…

其他凝聚态物理 · 物理学 2022-04-14 Ilya Fedorov , Vladimir Stegailov

In this paper, we study the phase transition behavior emerging from the interactions among multiple agents in the presence of noise. We propose a simple discrete-time model in which a group of non-mobile agents form either a fixed connected…

最优化与控制 · 数学 2008-10-21 Jialing Liu , Vikas Yadav , Hullas Sehgal , Joshua M. Olson , Haifeng Liu , Nicola Elia

We study the transition time distribution for a particle moving between two wells of a multidimensional potential in the low-noise limit of overdamped Langevin dynamics. Possible transition paths are restricted to a thin tube surrounding…

统计力学 · 物理学 2015-05-14 Sergey V. Malinin , Vladimir Y. Chernyak

Phase transitions induced by short optical pulses is a new mainstream in studies of cooperative electronic states. Its special realization in systems with neutral-ionic transformations stands out in a way that the optical pumping goes to…

强关联电子 · 物理学 2015-01-27 Tianyou Yi , Natasha Kirova , Serguei Brazovskii

A layered system of two-dimensional planes containing fermionic polar molecules can potentially realize a number of exotic quantum many-body states. Among the predictions, are density-wave instabilities driven by the anisotropic part of the…

量子气体 · 物理学 2015-03-18 N. T. Zinner , G. M. Bruun

The development of advanced quantum technologies and the quest for a deeper understanding of many-particle quantum mechanics requires control over the quantum state of interacting particles to a high degree of fidelity. However, the quickly…

量子物理 · 物理学 2016-03-17 Albert Benseny , Jérémie Gillet , Thomas Busch

Adiabatic passage is a standard tool for achieving robust transfer in quantum systems. We show that, in the context of driven nonlinear Hamiltonian systems, adiabatic passage becomes highly non-robust when the target is unstable. We show…

量子物理 · 物理学 2020-11-11 Jing-Jun Zhu , Xi Chen , Hans-Rudolf Jauslin , Stéphane Guérin

Amorphous elastomers exhibit significant rate-stiffening and unique viscous flow characteristics across a wide range of strain rates, often undergoing glass transition above a strain rate threshold. We have developed a…

软凝聚态物质 · 物理学 2026-05-26 Bibekananda Datta , Sushan Nakarmi , Nitin P. Daphalapurkar

Nematic drops suspended in the isotropic phase of the same substance were subjected to alternating electrical fields of varying frequency. The system was carefully kept in the isotropic-nematic coexistance region, which was broadened due to…

软凝聚态物质 · 物理学 2009-03-27 Günter K. Auernhammer , Jinyu Zhao , Beate Ullrich , Doris Vollmer

The time-dependent probability density function of a system evolving towards a stationary state exhibits an oscillatory behavior if the eigenvalues of the corresponding evolution operator are complex. The frequencies \omega_n, with which…

统计力学 · 物理学 2012-06-22 R. Salgado-Garcia

Systems with quasiperiodic disorder are known to exhibit localization transition in low dimension. After a critical strength of disorder all the states of the system become localized, thereby ceasing the particle motion in the system.…

量子气体 · 物理学 2021-03-17 Shilpi Roy , Tapan Mishra , B. Tanatar , Saurabh Basu

We consider models in which two sets of matched two-level systems are coupled to a common oscillator in the case where the oscillator energy is small relative to the two-level transition energies. Since the two sets of two-level systems are…

其他凝聚态物理 · 物理学 2007-05-23 Peter L. Hagelstein , Irfan U. Chaudhary

An asymmetric generalization of the zero-temperature Glauber model on a lattice is introduced. The dynamics of the particle-density and specially the large-time behavior of the system is studied. It is shown that the system exhibits two…

统计力学 · 物理学 2009-10-31 Mohammad Khorrami , Amir Aghamohammadi
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