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We demonstrate that quantum coherence can be generated by the interplay of coupling to an incoherent environment and kinetic processes. This joint effect even occurs in a repulsively interacting fermionic system initially prepared in an…

强关联电子 · 物理学 2013-12-17 Jean-Sebastien Bernier , Peter Barmettler , Dario Poletti , Corinna Kollath

Confining particles in hollow-core photonic crystal fibers has opened up new prospects to scale up the distance and time over which particles can be made to interact with light. However, maintaining long-lived quantum spin coherence and/or…

原子物理 · 物理学 2019-04-25 Mingjie Xin , Wui Seng Leong , Zilong Chen , Shau-Yu Lan

We investigate quantum coherence in a hybrid cavity magnomechanical system incorporating a squeezed-magnon drive. By analyzing the Gaussian quantum coherence of the cavity, magnonic, and mechanical subsystems, as well as the total system…

We consider two distant spin qubits in quantum dots, both coupled to a two-dimensional topological ferromagnet hosting chiral magnon edge states at the boundary. The chiral magnon is used to mediate entanglement between the spin qubits,…

介观与纳米尺度物理 · 物理学 2022-12-21 Bence Hetényi , Alexander Mook , Jelena Klinovaja , Daniel Loss

We study theoretically the interaction between two photons in a nonlinear cavity. The photons are loaded into the cavity via a method we propose here, in which the input/output coupling of the cavity is effectively controlled via a tunable…

量子物理 · 物理学 2020-04-29 Mikkel Heuck , Kurt Jacobs , Dirk R. Englund

Quantum entanglement in macroscopic systems is not only essential for practical quantum information processing, but also valuable for the study of the boundary between quantum and classical world. However, it is very challenge to achieve…

量子物理 · 物理学 2021-11-24 Guoyao Li , Zhang-qi Yin

Cavity magnonics is an emerging research area focusing on the coupling between magnons and photons. Despite its great potential for coherent information processing, it has been long restricted by the narrow interaction bandwidth. In this…

Quantum communication holds a promise for absolutely secure transmission of secret messages and faithful transfer of unknown quantum states. Photonic channels appear to be very attractive for physical implementation of quantum…

量子物理 · 物理学 2009-11-07 Lu-Ming Duan , Mikhail Lukin , Ignacio Cirac , Peter Zoller

We theoretically propose a scheme to generate distant bipartite entanglement between various subsystems in coupled magnomechanical systems where both the microwave cavities are coupled through single photon hopping parameter. Each cavity…

量子物理 · 物理学 2023-07-19 Amjad Sohail , Jia-Xin Peng , Abdelkader Hidki , S. K. Singh

Nonperturbative coupling of light with condensed matter in an optical cavity is expected to reveal a host of coherent many-body phenomena and states. In addition, strong coherent light-matter interaction in a solid-state environment is of…

Quantum communication over long distances relies on the ability to create entanglement between two remote quantum nodes. Recent proposals aiming at experimental realization propose a hybrid quantum repeater setup where two distant material…

量子物理 · 物理学 2013-11-11 J. Z. Bernád , H. Frydrych , G. Alber

A major trend within the field of cavity QED is to boost the interaction strength between the cavity field and the atomic internal degrees of freedom of the trapped atom by decreasing the mode volume of the cavity. In such systems, it is…

量子物理 · 物理学 2018-08-29 Lukas Neumeier , Darrick E. Chang

Microwave cavities with high quality factors enable coherent coupling of distant quantum systems. Virtual photons lead to a transverse exchange interaction between qubits, when they are non-resonant with the cavity but resonant with each…

量子物理 · 物理学 2011-06-24 S. Filipp , M. Göppl , J. M. Fink , M. Baur , R. Bianchetti , L. Steffen , A. Wallraff

We investigate a hybrid electro-optomechanical system that allows us to obtain controllable strong Kerr nonlinearities in the weak-coupling regime. We show that when the controllable electromechanical subsystem is close to its quantum…

量子物理 · 物理学 2013-10-25 Xin-You Lü , Wei-Min Zhang , Sahel Ashhab , Ying Wu , Franco Nori

We study the photon transfer along a linear array of three coupled cavities where the central one contains an interacting two-level system in the strong and ultrastrong coupling regimes. We find that an inhomogeneously coupled array forbids…

量子物理 · 物理学 2014-02-05 S. Felicetti , G. Romero , D. Rossini , R. Fazio , E. Solano

Radiation-pressure interactions between harmonic oscillators have enabled exquisite measurement precision and control, made possible by using strong sideband drives, enhancing the coupling rate while also linearizing the interaction. In…

量子物理 · 物理学 2025-04-22 C. A. Potts , R. C. Dekker , S. Deve , E. W. Strijbis , G. A. Steele

The dynamics of arbitrary-order quantum correlations in a cavity magnon-polariton system are investigated based on the quantum master equation in the coherent state representation. The phenomena of Rabi-like oscillation and level repulsion…

量子物理 · 物理学 2021-10-25 Guogan Zhao , Yong Wang , X. -F. Qian

The purpose of this paper is to study two-photon dynamics induced by the coherent feedback control of a cavity quantum electrodynamics (cavity-QED) system coupled to a waveguide. In this set-up, the two-level system in the cavity can work…

量子物理 · 物理学 2023-05-08 Haijin Ding , Guofeng Zhang

We study the photon-photon correlation properties of two-photon transport in a one-dimensional waveguide coupled to a nonlinear cavity via a real-space approach. It is shown that the intrinsic dissipation of the nonlinear cavity has an…

量子物理 · 物理学 2014-09-24 Xun-Wei Xu , Yong Li

In quantum simulations and experiments on optomechanical cavities, coherence control is a challenging issue. We propose a scheme of two coupled optomechanical cavities to enhance the intracavity entanglement. Photon hopping is employed to…

量子物理 · 物理学 2022-09-07 Smail Bougouffa , Mohannad Al-Hmoud , Jabir Wali Hakami