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

The Journal of Atomic and Molecular Sciences

Scheme for Generating W States via Distant Cavities

Pei-Chao Ding Pei-Chao Ding, Liu Ye

Published Dec 9, 2012• 1 citation
Publisher

Abstract

A scheme for generation of W state via distant cavities is presented. Employing resonant interactions between atoms and cavities, choosing different initial states, we can obtain non-maximally and maximally entangled states. In addition, our scheme could be easily generalized to generate N-atom W state. In contrast to the original scheme, our scheme is insensitive to the atomic spontaneous emission and cavity decay, it made the schemes more easily realize on experiments.

DOI
10.4208/jams.042512.061312a

Related papers

Entangled state generation via adiabatic passage in two distant cavities

Jie Song, Yan Xia, He‐Shan Song

A scheme is proposed for the generation of a two-atom entangled state and an N -atom W state in two distant cavities via adiabatic passage. In the scheme, since only laser fields applied to an atom need be changed, the property can effectively reduce the number of operations for implementing the scheme in experiment. And there are no excited states involved during the operation process, so the atom's spontaneous emission can be omitted approximately. Furthermore, the scheme is robust against the amplitude fluctuations of some experimental parameters.

Journal of Physics B Atomic Molecular and Optical Physics•Nov 13, 2007•37 citations

Preparation of entangled atomic states through simultaneous nonresonant atom–field interaction

Chen Mei-Feng

A scheme is proposed for generating a three-atom maximal entanglement W state. It is based on the simultaneous nonresonant interaction of atoms with a single-mode cavity field. Our scheme is insensitive to the cavity field, so the cavity field in our scheme can be initially in thermal states.

Chinese Physics•Nov 2, 2006•10 citations

Efficient generation of distant atom entanglement via cavity decay

Grzegorz Chimczak

We show how the entanglement of two atoms, trapped in distant separate cavities, can be generated with arbitrarily high probability of success. The scheme proposed employs sudden excitation of the atoms proving that the weakly driven condition is not necessary to obtain the success rate close to unity. The modified scheme works properly even if each cavity contains many atoms interacting with the cavity modes. We also show that our method is robust against spontaneous atomic decay.

arXiv:quant-ph/0409072•Physical Review A•May 4, 2005•21 citations

Implementing Entangled State via Selective Resonant Interaction

Xiu‐Min Lin

A scheme is presented to generate Bell state and W state in a high-Q optical cavity with selective interaction.In the scheme,the parameters are selected to highly control the selective interaction between the atoms and the cavity field,yielding a resonant interaction inside one selected atom-field subspace and leaving the others in a highly dispersive regime,which can be eliminated adiabatically.So the scheme is insensitive to atomic spontaneous emission and will be realized easier due to commonly addressing the atoms inside the cavity.

Acta Sinica Quantum Optica•Jan 1, 2011•0 citations

Alternative Scheme for Generation of Atomic Schrödinger Cat States and Entangled Coherent States in an Optical Cavity

Lin Xiu

We propose an alternative scheme for generation of atomic Schrödinger cat states in an optical cavity. In the scheme the atoms are always populated in the two ground states and the cavity remains in the vacuum state. Therefore, the scheme is insensitive to the atomic spontaneous emission and cavity decay. The scheme may be generalized to the deterministic generation of entangled coherent states for two atomic samples. In contrast with the previously proposed schemes of [Commun. Theor. Phys. 40 (2003) 103 and Chin. Phys. B 18 (2009) 1045], the required interaction time in our scheme is greatly shortened and thus the decoherence can be effectively suppressed.

Communications in Theoretical Physics•May 1, 2010•0 citations

Robust scheme for the generation of entangled states for N atoms in a cavity

Zheng Shi-Biao

A scheme is proposed for the generation of W entangled states for several atoms trapped in a cavity by detecting photon decay. The scheme works in the regime, where the cavity decay rate is larger than the atom-cavity coupling strength. Thus, the requirement for the quality factor of the cavity is greatly loosened, which is of importance in view of experiment. Another advantage of this scheme is that the atoms are always populated in two ground states coupled by Raman transitions, thus the spontaneous emission can also be suppressed.

Chinese Physics•Mar 1, 2005•12 citations
A scheme for generation of W state via distant cavities is presented. Employing resonant interactions between atoms and cavities, choosing different initial states, we can obtain non-maximally and maximally entangled states. In addition, our scheme could be easily generalized to generate N-atom W state. In contrast to the original scheme, our scheme is insensitive to the atomic spontaneous emission and cavity decay, it made the schemes more easily realize on experiments.
A scheme is proposed for the generation of a two-atom entangled state and an N -atom W state in two distant cavities via adiabatic passage. In the scheme, since only laser fields applied to an atom need be changed, the property can effectively reduce the number of operations for implementing the scheme in experiment. And there are no excited states involved during the operation process, so the atom's spontaneous emission can be omitted approximately. Furthermore, the scheme is robust against the amplitude fluctuations of some experimental parameters.
A scheme is presented to generate Bell state and W state in a high-Q optical cavity with selective interaction.In the scheme,the parameters are selected to highly control the selective interaction between the atoms and the cavity field,yielding a resonant interaction inside one selected atom-field subspace and leaving the others in a highly dispersive regime,which can be eliminated adiabatically.So the scheme is insensitive to atomic spontaneous emission and will be realized easier due to commonly addressing the atoms inside the cavity.
We propose an alternative scheme for generation of atomic Schrödinger cat states in an optical cavity. In the scheme the atoms are always populated in the two ground states and the cavity remains in the vacuum state. Therefore, the scheme is insensitive to the atomic spontaneous emission and cavity decay. The scheme may be generalized to the deterministic generation of entangled coherent states for two atomic samples. In contrast with the previously proposed schemes of [Commun. Theor. Phys. 40 (2003) 103 and Chin. Phys. B 18 (2009) 1045], the required interaction time in our scheme is greatly shortened and thus the decoherence can be effectively suppressed.
A scheme is proposed for the generation of W entangled states for several atoms trapped in a cavity by detecting photon decay. The scheme works in the regime, where the cavity decay rate is larger than the atom-cavity coupling strength. Thus, the requirement for the quality factor of the cavity is greatly loosened, which is of importance in view of experiment. Another advantage of this scheme is that the atoms are always populated in two ground states coupled by Raman transitions, thus the spontaneous emission can also be suppressed.