Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Communications in Theoretical Physics

Entangling Mesoscopic Squeezed Vacuum States and Mesoscopic Coherent States in Dissipative Cavity QED System

Changyong Chen, Shaohua Li

Published Mar 1, 2008• 0 citations
Publisher

Abstract

A scheme has been proposed for generating the macroscopic entanglement between the mesoscopic squeezed vacuum states and mesoscopic coherent states by considering both the two-photon interaction and the single photon interaction of N two-level atoms in cavities with high quality factor assisted by a strong driving field. Moreover, we derive the dissipative interaction models for single photon interaction and two-photon interaction, respectively. The corresponding analytical expressions of the fidelities can be given. Our scheme can be realized in the current techniques on the cavity QED.

DOI
10.1088/0253-6102/49/3/21

Related papers

Superposition and entanglement of mesoscopic squeezed vacuum states in cavity QED

Changyong Chen, Mang Feng, Kelin Gao

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 ``Schr\"odinger 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.

Physical Review A•Mar 16, 2006•19 citations

Efficient Scheme for Macroscopic Superpositions and Entanglement of High-Order Squeezed Vacuum States in Cavity QED

Changyong Chen

We propose an efficient scheme for generating the macroscopic superpositions and the entanglement between the high-order squeezed vacuum states by considering the multi-photon interaction of N two-level atoms in a cavity with high quality factor, assisted by a strong driving field. Through specific choices of the cavity detuning, a number of multi-party entangled states between the atoms and the high-order squeezed vacuum states and among the high-order squeezed vacuum states of the cavities can be prepared, including also the macroscopic "Schrödinger cats" of the high-order squeezed vacuum states, the entangled states of the macroscopic "Schrödinger cats", and so on. Possible extension and application of our scheme are discussed. Our scheme is reachable within the current techniques in the cavity QED.

Communications in Theoretical Physics•May 1, 2008•0 citations

Scheme for entangled-mesoscopic-state generation in weakly dissipative cavities

Changyong Chen, Shaohua Li, Mang Feng

We analytically investigate the generation of mesoscopic entanglement between deformed coherent states which result from the action of the non-standard displacement (displacement-like) operator on the cavity mode vacuum state, and between deformed coherent states and Fock states, based on a dissipative one-photon interaction of a two-level atom with single-mode cavities under strong driving fields. By using the quantum trajectory method and displacement-like operators, we analytically present the detrimental effect of the cavity decay on the generated states and briefly discuss the feasibility of experimental preparation of those states in cavity QED.

Journal of Physics B Atomic Molecular and Optical Physics•Jul 6, 2007•1 citation

Generation of multipartite entangled states by cavity QED

Zhang Ying-Jie, Ren Ting-Qi, Yun‐Jie Xia

We propose the methods of generating multipartite entanglement by considering the interaction of a system of N two-level atoms in M cavities of high quality factor with a strong classical driving field. It is shown that, with the cavity detuning, the applied driving field detuning and vacuum Rabi coupling, we can produce an entangled coherent state in two single-mode cavities and generate the entangled coherent cluster states in two bimodal vacuum cavities. Tuning these parameters also allows us to acquire the anti-Jaynes–Cummings (AJC) interaction, with which we can generate the maximally two-photon entangled states, and the two-atom and the two-photon entangled cluster states.

Chinese Physics B•Jun 1, 2008•4 citations

Scheme for generating a cluster-type entangled squeezed vacuum state via cavity QED

文晶姬, Yeon, Kyu-Hwang +2 more

A scheme is proposed to generate an N-qubit cluster-type entangled squeezed vacuum state(CTESVS) based on the two-photon interaction between a two-level atom and the cavity fields with the cavity QED system. The CTESVS in N separate cavities can be effectively obtained after performing a simple one-qubit measurement on the atom. The influence of cavity decay on the CTESVS is also discussed.

中国物理B：英文版•Jan 1, 2014•0 citations

Scheme for generating a cluster-type entangled squeezed vacuum state via cavity QED

Jing-Ji Wen, Kyu-Hwang Yeon, Hong‐Fu Wang +1 more

A scheme is proposed to generate an N -qubit cluster-type entangled squeezed vacuum state (CTESVS) based on the two-photon interaction between a two-level atom and the cavity fields with the cavity QED system. The CTESVS in N separate cavities can be effectively obtained after performing a simple one-qubit measurement on the atom. The influence of cavity decay on the CTESVS is also discussed.

Chinese Physics B•Apr 1, 2014•4 citations
A scheme has been proposed for generating the macroscopic entanglement between the mesoscopic squeezed vacuum states and mesoscopic coherent states by considering both the two-photon interaction and the single photon interaction of N two-level atoms in cavities with high quality factor assisted by a strong driving field. Moreover, we derive the dissipative interaction models for single photon interaction and two-photon interaction, respectively. The corresponding analytical expressions of the fidelities can be given. Our scheme can be realized in the current techniques on the cavity QED.
We propose a scheme to generate superposition and entanglement between the mesoscopic squeezed vacuum states by considering the two-photon interaction of NNN 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 ``Schr\"odinger 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.
We propose an efficient scheme for generating the macroscopic superpositions and the entanglement between the high-order squeezed vacuum states by considering the multi-photon interaction of N two-level atoms in a cavity with high quality factor, assisted by a strong driving field. Through specific choices of the cavity detuning, a number of multi-party entangled states between the atoms and the high-order squeezed vacuum states and among the high-order squeezed vacuum states of the cavities can be prepared, including also the macroscopic "Schrödinger cats" of the high-order squeezed vacuum states, the entangled states of the macroscopic "Schrödinger cats", and so on. Possible extension and application of our scheme are discussed. Our scheme is reachable within the current techniques in the cavity QED.
We analytically investigate the generation of mesoscopic entanglement between deformed coherent states which result from the action of the non-standard displacement (displacement-like) operator on the cavity mode vacuum state, and between deformed coherent states and Fock states, based on a dissipative one-photon interaction of a two-level atom with single-mode cavities under strong driving fields. By using the quantum trajectory method and displacement-like operators, we analytically present the detrimental effect of the cavity decay on the generated states and briefly discuss the feasibility of experimental preparation of those states in cavity QED.
We propose the methods of generating multipartite entanglement by considering the interaction of a system of N two-level atoms in M cavities of high quality factor with a strong classical driving field. It is shown that, with the cavity detuning, the applied driving field detuning and vacuum Rabi coupling, we can produce an entangled coherent state in two single-mode cavities and generate the entangled coherent cluster states in two bimodal vacuum cavities. Tuning these parameters also allows us to acquire the anti-Jaynes–Cummings (AJC) interaction, with which we can generate the maximally two-photon entangled states, and the two-atom and the two-photon entangled cluster states.