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author:

Wang, Song-Bai (Wang, Song-Bai.) [1] (Scholars:王松柏) | Song, Jie (Song, Jie.) [2] | Xia, Yan (Xia, Yan.) [3] (Scholars:夏岩)

Indexed by:

SCIE

Abstract:

A scheme is proposed for fast generation of entangled states in directly coupled bimodal-mode cavities based on shortcuts to adiabatic passage. The scheme can be realized by transitionless quantum driving with the help of quantum Zeno dynamics and non-resonant lasers. First, we simplify the system by the quantum Zeno dynamics. Then, under the large detuning condition, we get the effective Hamiltonian which is equivalent to the corresponding counter-diabatic driving Hamiltonian to speed up the evolution process. The effects of decoherence induced by atomic spontaneous emission, leakage of the cavity and operational imperfection are also taken into account. The numerical simulation result shows that this scheme is robust against these factors. During realizing the scheme, the laser pulses are not strongly limited and the auxiliary levels or multi-step operations are not needed. Moreover, for any quantum system whose Hamiltonian is possible to be simplified into the same form in the paper, the corresponding alternative physically feasible Hamiltonian can be built with present method, which provides a scalable way for the preparation of entangled states in theory.

Keyword:

Counterdiabatic driving Directly coupled bimodal-mode cavity Entangled state Quantum Zeno dynamics Shortcuts to adiabatic passage

Community:

  • [ 1 ] [Wang, Song-Bai]Fuzhou Univ, Dept Phys, Fuzhou 350116, Peoples R China
  • [ 2 ] [Xia, Yan]Fuzhou Univ, Dept Phys, Fuzhou 350116, Peoples R China
  • [ 3 ] [Wang, Song-Bai]Fuzhou Univ, Fujian Key Lab Quantum Informat & Quantum Opt, Fuzhou 350116, Peoples R China
  • [ 4 ] [Xia, Yan]Fuzhou Univ, Fujian Key Lab Quantum Informat & Quantum Opt, Fuzhou 350116, Peoples R China
  • [ 5 ] [Song, Jie]Harbin Inst Technol, Dept Phys, Harbin 150001, Peoples R China

Reprint 's Address:

  • 夏岩

    [Xia, Yan]Fuzhou Univ, Dept Phys, Fuzhou 350116, Peoples R China;;[Xia, Yan]Fuzhou Univ, Fujian Key Lab Quantum Informat & Quantum Opt, Fuzhou 350116, Peoples R China

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Source :

INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS

ISSN: 0020-7748

Year: 2021

Issue: 1

Volume: 60

Page: 200-213

1 . 3 0 8

JCR@2021

1 . 3 0 0

JCR@2023

ESI Discipline: PHYSICS;

ESI HC Threshold:87

JCR Journal Grade:4

CAS Journal Grade:4

Cited Count:

WoS CC Cited Count: 2

SCOPUS Cited Count: 1

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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