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In this study, one-dimensional systems of masses connected by springs, i.e., spring-chain systems, are investigated numerically. The average kinetic energy of chain-end particles of these systems is larger than that of other particles,…

混沌动力学 · 物理学 2015-05-18 Tetsuro Konishi , Tatsuo Yanagita

Many complex systems satisfy a set of constraints on their degrees of freedom, and at the same time, they are able to work and adapt to different conditions. Here, we describe the emergence of this ability in a simplified model in which the…

无序系统与神经网络 · 物理学 2007-05-23 Ginestra Bianconi , Roberto Mulet

The stability of a complex system generally decreases with increasing system size and interconnectivity, a counterintuitive result of widespread importance across the physical, life, and social sciences. Despite recent interest in the…

种群与进化 · 定量生物学 2020-05-20 A. Bradley Duthie

An optical nanoantenna and adjacent atomic systems are strongly coupled when an excitation is repeatedly exchanged between these subsystems prior to its eventual dissipation into the environment. It remains challenging to reach the strong…

介观与纳米尺度物理 · 物理学 2013-11-15 Karolina Słowik , Robert Filter , Jakob Straubel , Falk Lederer , Carsten Rockstuhl

We analyze a 1-d ring structure composed of many two-levels systems, in the limit where only one excitation is present. The two-levels systems are coupled to a common environment, where the excitation can be lost, which induces super and…

介观与纳米尺度物理 · 物理学 2015-06-19 G. L. Celardo , P. Poli , L. Lussardi , F. Borgonovi

Coupled parametric oscillators were recently employed as simulators of artificial Ising networks, with the potential to solve computationally hard minimization problems. We demonstrate a new dynamical regime within the simplest network -…

We present an efficient method for the characterization of two coupled discrete quantum systems, one of which can be controlled and measured. For two systems with transition frequencies $\omega_q$, $\omega_r$, and coupling strength $g$ we…

量子物理 · 物理学 2017-01-06 Markku P. V. Stenberg , Yuval R. Sanders , Frank K. Wilhelm

We study the thermodynamic properties of a system of two-level dipoles that are coupled ultrastrongly to a single cavity mode. By using exact numerical and approximate analytical methods, we evaluate the free energy of this system at…

量子物理 · 物理学 2020-09-30 Philipp Pilar , Daniele De Bernardis , Peter Rabl

If a contact of two purely elastic bodies with no sliding (infinite coefficient of friction) is subjected to superimposed oscillations in the normal and tangential directions, then a specific damping appears, that is not dependent on…

软凝聚态物质 · 物理学 2015-12-29 M. Popov , V. L. Popov , R. Pohrt

Quantum states inevitably decay with time into a probabilistic mixture of classical states, due to their interaction with the environment and measurement instrumentation. We present the first measurement of the decoherence dynamics of…

In the past decade, synchronization on complex networks has attracted increasing attentions from various research disciplines. Most previous works, however, focus only on the dynamic behaviors of synchronization process in the stable…

数据分析、统计与概率 · 物理学 2011-10-26 Zhao Zhuo , Shimin Cai , Jie Zhang , Zhongqian Fu

The scattering of a flying photon by a two-level system ultrastrongly coupled to a one-dimensional photonic waveguide is studied numerically. The photonic medium is modeled as an array of coupled cavities and the whole system is analyzed…

An optimal dynamical decoupling of a quantum system coupled to a noisy environment must take into account also the imperfections of the control pulses. We present a new formalism which describes, in a closed-form expression, the evolution…

量子物理 · 物理学 2016-10-19 Ido Almog , Gil Loewenthal , Jonathan Coslovsky , Yoav Sagi , Nir Davidson

A self-consistent mode-coupling theory is presented for the viscosity of solutions of charged rod-like polymers. The static structure factor used in the theory is obtained from polymer integral equation theory; the Debye-H\"{u}ckel…

软凝聚态物质 · 物理学 2009-11-10 Kunimasa Miyazaki , Biman Bagchi , Arun Yethiraj

When two systems are coupled, the driver system can function as an external forcing over the driven or response system. Also, an external forcing can independently perturb the driven system, leading us to examine the interplay between the…

混沌动力学 · 物理学 2024-12-11 Mattia Coccolo , Miguel A. F. Sanjuán

We measure the dispersive energy-level shift of an $LC$ resonator magnetically coupled to a superconducting qubit, which clearly shows that our system operates in the ultrastrong coupling regime. The large mutual kinetic inductance provides…

We consider a chain of trapped ions to interact with each other via long-range interactions. This system can be used to simulate the long-range Ising model. We study the dynamics of quantum coherence of a single spin in the chain, where the…

量子物理 · 物理学 2015-11-25 H. T. Ng , Jing-Ning Zhang

We numerically investigate the long-time behavior of the density-density auto-correlation function in driven lattice gases with particle exclusion and periodic boundary conditions in one, two, and three dimensions using precise Monte Carlo…

统计力学 · 物理学 2011-05-06 George L. Daquila , Uwe C. Tauber

We investigate a resonantly modulated harmonic mode, dispersively coupled to a nonequilibrium few-level quantum system. We focus on the regime where the relaxation rate of the system greatly exceeds that of the mode, and develop a quantum…

介观与纳米尺度物理 · 物理学 2015-06-18 Z. Maizelis , M. Rudner , M. I. Dykman

We study how the entanglement spectrum relaxes to its steady state in one-dimensional quadratic systems after a quantum quench. In particular we apply the saddle point expansion to the dimerized chains and 1-D p-wave superconductors. We…

介观与纳米尺度物理 · 物理学 2017-07-28 Yi-Hao Jhu , Pochung Chen , Ming-Chiang Chung