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Quantum control of the many-body wavefunction is a central challenge in quantum materials research, as it could yield a precise control knob to manipulate emergent phenomena. Floquet engineering, the coherent dressing of quantum states with…

Cavity optomechanical systems are one of the leading experimental platforms for controlling mechanical motion in the quantum regime. We exemplify that the control over cavity optomechanical systems greatly increases by coupling the cavity…

量子物理 · 物理学 2019-05-14 Ville Bergholm , Witlef Wieczorek , Thomas Schulte-Herbrueggen , Michael Keyl

Elucidating the emergence of irreversible macroscopic laws from reversible quantum many-body dynamics is a question of broad importance across all quantum science. Many-body decoherence plays a key role in this transition, yet connecting…

量子物理 · 物理学 2025-11-12 Cooper M. Selco , Christian Bengs , Chaitali Shah , Zhuorui Zhang , Ashok Ajoy

We consider two species of hard-core bosons with density dependent hopping in a one-dimensional optical lattice, for which we propose experimental realizations using time-periodic driving. The quantum phase diagram for half-integer filling…

强关联电子 · 物理学 2020-03-11 Tao Wang , Shijie Hu , Sebastian Eggert , Michael Fleischhauer , Axel Pelster , Xue-Feng Zhang

Time-periodically driven systems are a versatile toolbox for realizing interesting effective Hamiltonians. Heating, caused by excitations to high-energy states, is a challenge for experiments. While most setups address the relatively…

量子气体 · 物理学 2018-04-10 Tao Qin , Walter Hofstetter

We present a phase control method for a general three-mode system with closed-loop in coupling that drives the system into an entangled steady state and produces directional steering between two completely symmetric modes via quantum…

量子物理 · 物理学 2019-03-06 Shasha Zheng , Fengxiao Sun , Yijie Lai , Qihuang Gong , Qiongyi He

We generalize the Schrieffer-Wolff transformation to periodically driven systems using Floquet theory. The method is applied to the periodically driven, strongly interacting Fermi-Hubbard model, for which we identify two regimes resulting…

量子气体 · 物理学 2016-03-29 Marin Bukov , Michael Kolodrubetz , Anatoli Polkovnikov

We consider a nonequilibrium transition that leads to the formation of nonlinear steady-state structures due to the gas flow scattering on a partially penetrable obstacle. The resulting nonequilibrium steady state (NESS) corresponds to a…

统计力学 · 物理学 2026-04-23 S. P. Lukyanets , O. V. Kliushnichenko

We explore the quantum dynamics of particles in a spatiotemporally driven lattice. A powerful numerical scheme is developed, which provides us with the Floquet modes and thus enables a stroboscopic propagation of arbitrary initial states. A…

量子物理 · 物理学 2014-11-13 Thomas Wulf , Christoph Petri , Benno Liebchen , Peter Schmelcher

The use of periodic driving for synthesizing many-body quantum states depends crucially on the existence of a prethermal regime, which exhibits drive-tunable properties while forestalling the effects of heating. This motivates the search…

The spatiotemporal complexity induced by perturbed initial excitations through the development of modulational instability in nonlinear lattices with or without disorder, may lead to the formation of very high amplitude, localized transient…

无序系统与神经网络 · 物理学 2019-07-19 G. P. Tsironis , N. Lazarides , A Maluckov , Lj. Hadzievski

We study the effect of pulsed driving and kicked driving of the interaction term on the non-equilibrium phase transition in the Dicke Model. Within the framework of Floquet theory, we observe the emergence of new non-trivial phases on…

统计力学 · 物理学 2015-05-26 Sayak Dasgupta , Utso Bhattacharya , Amit Dutta

Controlling dopant transport with high spatial precision is crucial for improving the semiconductor functionality, reliability, and scalability. Although prior models of noise-assisted diffusion have been largely confined to idealized one…

统计力学 · 物理学 2025-09-12 Mesfin Taye , Yoseph Abebe , Tibebe Birhanu , Lemi Demeyu , Mulugeta Bekele

We study the interplay of magnetic order and superconductivity in the square-lattice Hubbard model under periodic driving with circularly polarized light. Formulating diagrammatic techniques based on the random-phase approximation in terms…

强关联电子 · 物理学 2026-02-24 Jan-Niklas Herre , Takuya Okugawa , Ammon Fischer , Christoph Karrasch , Dante M. Kennes

We study a minimal model that has a driven-dissipative quantum phase transition, namely a Kerr non-linear oscillator subject to driving and dissipation. Using mean-field theory, exact diagonalization, and the Keldysh formalism, we analyze…

量子物理 · 物理学 2021-03-26 Xin H. H. Zhang , Harold U. Baranger

Dense ensembles of spin qubits are valuable for quantum applications, even though their coherence protection remains challenging. Continuous dynamical decoupling can protect ensemble qubits from noise while allowing gate operations, but it…

量子物理 · 物理学 2021-01-22 Guoqing Wang , Yi-Xiang Liu , Paola Cappellaro

We propose a new method to produce self- and cross-Kerr photonic nonlinearities, using light-induced Stark shifts due to the interaction of a cavity mode with atoms. The proposed experimental set-up is considerably simpler than in previous…

量子物理 · 物理学 2008-04-11 Fernando G. S. L. Brandao , Michael J. Hartmann , Martin B. Plenio

We discuss stationary solutions of the nonlinear Schrodinger equation (NSE) applicable to several quantum spin, electron and classical lattice systems. We show that there may arise chaotic spatial structures in the form of incommensurate or…

数学物理 · 物理学 2007-05-23 F. V. Kusmartsev , K. E. Kurten , H. S. Dhillon

In the present work, we study coherent structures in a one-dimensional discrete nonlinear Schr\"odinger lattice in which the coupling between waveguides is periodically modulated. Numerical experiments with single-site initial conditions…

斑图形成与孤子 · 物理学 2023-08-23 Ross Parker , Jesús Cuevas-Maraver , P. G. Kevrekidis , Alejandro Aceves

We show that periodic longitudinal modulation of waveguide arrays with disclination can result in the appearance of previously unexplored Floquet modes bound to the disclination core. Such modes arise due to oscillations of the waveguides…

光学 · 物理学 2025-12-19 K. Sabour , S. K. Ivanov , A. Ferrando , Y. V. Kartashov
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