| CLASSICAL AREAS OF PHENOMENOLOGY |
Prev
Next
|
|
|
Decoherence-immune generation of highly entangled states for two atoms |
| Zheng Shi-Biao(郑仕标)† |
| Department of Physics and State Key Laboratory Breeding Base of Photocatalysis, Fuzhou University, Fuzhou 350002, China |
|
|
|
|
Abstract This paper proposes a decoherence-immune scheme for generating highly entangled states for two atoms trapped in a cavity. The scheme is based on two resonant atom-cavity interactions. Conditional upon the detection of no photon, the two atoms may exchange an excitation via the first resonant interaction, which leads to entanglement. Due to the loss of the excitation, the two atoms are in a mixed entangled state. With the help of an auxiliary ground state not coupled to the cavity mode, the state related to the excitation loss is eliminated by the detection of a photon resulting from the second resonant interaction. Thus, the fidelity of entanglement is almost not affected by the decoherence.
|
Received: 28 December 2008
Revised: 12 May 2009
Accepted manuscript online:
|
|
PACS:
|
42.50.Dv
|
(Quantum state engineering and measurements)
|
| |
37.10.De
|
(Atom cooling methods)
|
| |
42.50.Pq
|
(Cavity quantum electrodynamics; micromasers)
|
|
| Fund: Project supported by funds from the
State Key Laboratory Breeding Base of Photocatalysis, Fuzhou
University. |
Cite this article:
Zheng Shi-Biao(郑仕标) Decoherence-immune generation of highly entangled states for two atoms 2010 Chin. Phys. B 19 044204
|
| [1] |
Bell J S 1965 Physics 1 195
|
| [2] |
Ekert A K 1991 Phys. Rev. Lett.67 661
|
| [3] |
Bennett C H, Brassard G, Crepeau C, Jozsa R, Peres A and Wootters W 1993 Phys. Rev. Lett.70 1895
|
| [4] |
Cirac J I and Zoller P 1994 Phys. Rev. A 50 R2799
|
| [5] |
Zheng S B and Guo G C 2000 Phys. Rev. Lett.85 2392
|
| [6] |
Zhang J 2008 Chin. Phys. B 17 1674
|
| [7] |
Hagley E, Maitre X, Nogues G, Wunderlich C, Brune M, Raimond J M and Haroche S 1997 Phys. Rev. Lett.79 1
|
| [8] |
Rauschenbeutel A, Nogues G, Osnaghi S, Bertet P, Brune M, Raimond J M and Haroche S 2000 Science 288 2024
|
| [9] |
Plenio M B, Huelga S F, Beige A and Knight P L 1999 Phys. Rev. A 59 2468
|
| [10] |
Hong J and Lee L W 2002 Phys. Rev. Lett.89 237901
|
| [11] |
Wootters W K 1998 Phys. Rev. Lett.80 2245
|
| [12] |
Mckeever J, Buck J R, Boozer A D and Kimble H J 2004 quant-ph/0403121
|
| [13] |
Boca A, Miller R, Birnbaum K M, Boozer A D, Mckeever J and Kimble H J 2004 quant-ph/0410164
|
| [14] |
Keller M, Lange B, Hayasaka K, Lange W and Walther H 2004 New J. Phys. 6 95
|
| [15] |
Boozer A D, Boca A, Northup T E and Kimble H J 2006 quant-ph/0606104
|
| No Suggested Reading articles found! |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
Altmetric
|
|
blogs
Facebook pages
Wikipedia page
Google+ users
|
Online attention
Altmetric calculates a score based on the online attention an article receives. Each coloured thread in the circle represents a different type of online attention. The number in the centre is the Altmetric score. Social media and mainstream news media are the main sources that calculate the score. Reference managers such as Mendeley are also tracked but do not contribute to the score. Older articles often score higher because they have had more time to get noticed. To account for this, Altmetric has included the context data for other articles of a similar age.
View more on Altmetrics
|
|
|
