Josephson arrays as quantum channels

被引:0
作者
Romito, A [1 ]
Bruder, C [1 ]
Fazio, R [1 ]
机构
[1] NEST INFM, I-56126 Pisa, Italy
来源
REALIZING CONTROLLABLE QUANTUM STATES: MESOSCOPIC SUPERCONDUCTIVITY AND SPINTRONICS | 2005年
关键词
D O I
10.1142/9789812701619_0037
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
We show that one-dimensional Josephson junction arrays can behave as quantum channels and can be used to transfer quantum information between distant sites. In particular, we discuss simple protocols to realize, without external control, state transfer with high fidelity in Josephson chains. The channels do not require complicate gating but use the natural dynamics of a properly designed array. We analyze the influence of disorder both in the Josephson energies and in the background gate charges, and we propose an experiment, realizable with present-day technology, that may allow to implement these protocols.
引用
收藏
页码:241 / 246
页数:6
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