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Title: Superposition and entanglement of mesoscopic squeezed vacuum states in cavity QED

Abstract

We propose a scheme to generate superposition and entanglement between the mesoscopic squeezed vacuum states by considering the two-photon interaction of N two-level atoms in a cavity with high quality factor, assisted by a strong driving field. By virtue of specific choices of the cavity detuning, a number of multiparty entangled states can be prepared, including the entanglement between the atomic and the squeezed vacuum cavity states and between the squeezed vacuum states and the coherent states of the cavities. We also present how to prepare entangled states and 'Schroedinger cats' states regarding the squeezed vacuum states of the cavity modes. The possible extension and application of our scheme are discussed. Our scheme is close to the reach with current cavity QED techniques.

Authors:
 [1]; ;  [1]
  1. Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071 (China)
Publication Date:
OSTI Identifier:
20787010
Resource Type:
Journal Article
Journal Name:
Physical Review. A
Additional Journal Information:
Journal Volume: 73; Journal Issue: 3; Other Information: DOI: 10.1103/PhysRevA.73.034305; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1050-2947
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; ANNIHILATION OPERATORS; ATOMS; CAVITY RESONATORS; EIGENSTATES; ENERGY LEVELS; PHOTON-ATOM COLLISIONS; PHOTONS; QUALITY FACTOR; QUANTUM ELECTRODYNAMICS; QUANTUM ENTANGLEMENT; VACUUM STATES

Citation Formats

Changyong, Chen, Department of Physics and Information Engineering, Hunan Institute of Humanities, Science and Technology, Loudi 417000, Graduate School of the Chinese Academy of Science, Beijing 100049, Mang, Feng, and Kelin, Gao. Superposition and entanglement of mesoscopic squeezed vacuum states in cavity QED. United States: N. p., 2006. Web. doi:10.1103/PHYSREVA.73.0.
Changyong, Chen, Department of Physics and Information Engineering, Hunan Institute of Humanities, Science and Technology, Loudi 417000, Graduate School of the Chinese Academy of Science, Beijing 100049, Mang, Feng, & Kelin, Gao. Superposition and entanglement of mesoscopic squeezed vacuum states in cavity QED. United States. https://doi.org/10.1103/PHYSREVA.73.0
Changyong, Chen, Department of Physics and Information Engineering, Hunan Institute of Humanities, Science and Technology, Loudi 417000, Graduate School of the Chinese Academy of Science, Beijing 100049, Mang, Feng, and Kelin, Gao. 2006. "Superposition and entanglement of mesoscopic squeezed vacuum states in cavity QED". United States. https://doi.org/10.1103/PHYSREVA.73.0.
@article{osti_20787010,
title = {Superposition and entanglement of mesoscopic squeezed vacuum states in cavity QED},
author = {Changyong, Chen and Department of Physics and Information Engineering, Hunan Institute of Humanities, Science and Technology, Loudi 417000 and Graduate School of the Chinese Academy of Science, Beijing 100049 and Mang, Feng and Kelin, Gao},
abstractNote = {We propose a scheme to generate superposition and entanglement between the mesoscopic squeezed vacuum states by considering the two-photon interaction of N two-level atoms in a cavity with high quality factor, assisted by a strong driving field. By virtue of specific choices of the cavity detuning, a number of multiparty entangled states can be prepared, including the entanglement between the atomic and the squeezed vacuum cavity states and between the squeezed vacuum states and the coherent states of the cavities. We also present how to prepare entangled states and 'Schroedinger cats' states regarding the squeezed vacuum states of the cavity modes. The possible extension and application of our scheme are discussed. Our scheme is close to the reach with current cavity QED techniques.},
doi = {10.1103/PHYSREVA.73.0},
url = {https://www.osti.gov/biblio/20787010}, journal = {Physical Review. A},
issn = {1050-2947},
number = 3,
volume = 73,
place = {United States},
year = {Wed Mar 15 00:00:00 EST 2006},
month = {Wed Mar 15 00:00:00 EST 2006}
}