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We propose an explanation of the bands of extended states appearing in random one dimensional models with correlated disorder, focusing on the Continuous Random Dimer model [A.\ S\'{a}nchez, E.\ Maci\'a, and F.\ Dom\'\i nguez-Adame, Phys.\…

凝聚态物理 · 物理学 2009-10-22 A. Sanchez , F. Dominguez-Adame , G. Berman , F. Izrailev

A state of an open quantum system is described by a density matrix, whose dynamics is governed by a Liouvillian superoperator. Within a general framework, we explore fundamental properties of both first-order dissipative phase transitions…

量子物理 · 物理学 2018-10-19 Fabrizio Minganti , Alberto Biella , Nicola Bartolo , Cristiano Ciuti

The deterministic generation of multiexcitation subradiant states proves to be challenging. Here, we present a viable path towards their transient generation in finite-sized ordered arrays of dipole-dipole coupled quantum emitters, based on…

量子物理 · 物理学 2023-05-10 Oriol Rubies-Bigorda , Stefan Ostermann , Susanne F. Yelin

In this work, we propose a method to investigate controllable qubit-resonator interactions in a Dicke model with driven biased term. The nonlinearity of spectrum, which can be induced by qubit-resonator interactions, plays an important role…

量子物理 · 物理学 2022-04-06 Ning Yu , Shiran Wang , Chunfang Sun , Gangcheng Wang

Open quantum systems interacting with an environment exhibit dynamics described by the combination of dissipation and coherent Hamiltonian evolution. Taken together, these effects are captured by a Liouvillian superoperator. The…

量子物理 · 物理学 2022-04-08 Weijian Chen , Maryam Abbasi , Byung Ha , Serra Erdamar , Yogesh N. Joglekar , Kater W. Murch

A class of two-species ({\it three-states}) bimolecular diffusion-limited models of classical particles with hard-core reacting and diffusing in a hypercubic lattice of arbitrary dimension is investigated. The manifolds on which the…

统计力学 · 物理学 2009-10-31 Mauro Mobilia , Pierre-Antoine Bares

For the driven-dissipative system of two coupled bosonic modes in a nonlinear cavity resonator, we demonstrate a sequence of phase transitions from a trivial steady state to two distinct dissipative time crystalline phases. These effects…

量子物理 · 物理学 2022-12-21 L. R. Bakker , M. S. Bahovadinov , D. V. Kurlov , V. Gritsev , Aleksey K. Fedorov , D. O. Krimer

Recent experimental evidences point to two-level defects, located in the oxides and on the interfaces of the Josephson junctions, as the major constituents of decoherence in superconducting qubits. How these defects affect the qubit…

量子物理 · 物理学 2024-08-23 Yanxiang Wang , Ziyang You , Hou Ian

We give an analytical description of the dynamics of the three-qubit Dicke model using the adiabatic approximation in the parameter regime where the qubits transition frequencies are far off-resonance with the field frequency and the…

量子物理 · 物理学 2016-05-25 Lijun Mao , Yanxia Liu , Yunbo Zhang

In this work, we study the driven-dissipative dynamics of a coherently-driven spin ensemble with a squeezed, superradiant decay. This decay consists of a sum of both raising and lowering collective spin operators with a tunable weight. The…

We investigate the three-level Dicke model, which describes a fundamental class of light-matter systems. We determine the phase diagram in the presence of dissipation, which we assume to derive from photon loss. Utilizing both analytical…

We show that excitability is generic in systems displaying dissipative solitons when spatial inhomogeneities and drift are present. Thus, dissipative solitons in systems which do not have oscillatory states, such as the prototypical…

斑图形成与孤子 · 物理学 2013-02-15 P. Parra-Rivas D. Gomila , M. A. Matias , P. Colet

In driven-dissipative systems, the presence of a strong symmetry guarantees the existence of several steady states belonging to different symmetry sectors. Here we show that, when a system with a strong symmetry is initialized in a quantum…

Engineering dissipative dynamics in open quantum systems is under active focus, especially in topological settings where resilient edge modes are expected to exhibit decay rates distinct from the bulk. In this letter, we propose an…

介观与纳米尺度物理 · 物理学 2025-12-01 Koustav Roy , Shahroze Shahab , Saurabh Basu

Recently it was shown in Ref. [Phys. Rev. Lett. 112, 140402 (2014)] that in the idealized Dicke model of superradiance there is no entanglement among any partitions of the system during the total evolution time of the system. This result…

量子物理 · 物理学 2016-08-17 Eduardo M. dos Santos , Eduardo I. Duzzioni

We investigate a long time asymptotic state of periodically driven open quantum systems analytically. The model we consider in this paper is a free fermionic system coupled to an energy and particle reservoir. We clarify some generic…

统计力学 · 物理学 2016-11-14 Koudai Iwahori , Norio Kawakami

We study nanomechanical resonators with frequency fluctuations due to diffusion of absorbed particles. The diffusion depends on the vibration amplitude through inertial effect. We find that, if the diffusion coefficient is sufficiently…

介观与纳米尺度物理 · 物理学 2015-05-27 J. Atalaya , A. Isacsson , M. I. Dykman

Time-resolved photoemission spectroscopy provides a unique and direct way to explore the real-time nonequilibrium dynamics of electrons and holes. The formal theory of the spectral function evolution requires inclusion of electronic…

材料科学 · 物理学 2025-05-09 Thomas Blommel , Enrico Perfetto , Gianluca Stefanucci , Vojtěch Vlček

Dicke superradiance, i.e., the enhanced spontaneous emission of coherent radiation, is often attributed to radiation emitted by synchronized dipoles coherently oscillating in phase. At the same time, Dicke derived superradiance assuming…

量子物理 · 物理学 2021-11-10 D. Bhatti , M. Bojer , J. von Zanthier

Fully inverted atoms placed at exactly the same location synchronize as they deexcite, and light is emitted in a burst (known as "Dicke's superradiance"). We investigate the role of finite interatomic separation on correlated decay in…