Coherent-state qubits:: entanglement and decoherence

被引：21
作者：
Asbóth, JK
Adam, P
Koniorczyk, M
Janszky, J
机构：
[1] Univ Innsbruck, Inst Theoret Phys, A-6020 Innsbruck, Austria
[2] Res Inst Solid State Phys & Opt, H-1525 Budapest, Hungary
[3] Hungarian Acad Sci, Res Grp Nonlinear & Quantum Opt, H-7624 Pecs, Hungary
[4] Univ Pecs, Inst Phys, H-7624 Pecs, Hungary
[5] Slovak Acad Sci, Inst Phys, Res Ctr Quantum Informat, Bratislava 84511, Slovakia
来源：
EUROPEAN PHYSICAL JOURNAL D | 2004年 / 30卷 / 03期
关键词：
D O I：
10.1140/epjd/e2004-00094-2
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Arbitrary superpositions of any two optical coherent states are investigated as realizations of qubits for quantum information processing. Decoherence of these coherent-state qubits is described in detail, and visualized using a suitable adaptive Bloch-sphere. The entanglement that can be created by a beam splitter from these states is quantified, and its decoherence behavior is analyzed.
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收藏
页码：403 / 410
页数：8
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