A probabilistic CNOT gate for coherent state qubits

被引：2
|
作者：
Oliveira, M. S. R. [1 ]
Vasconcelos, H. M. [1 ]
Silva, J. B. R. [1 ]
机构：
[1] Univ Fed Ceara, Dept Engn Teleinformat, Fortaleza, Ceara, Brazil
来源：
PHYSICS LETTERS A | 2013年 / 377卷 / 39期
关键词：
CNOT; Coherent states; Entangled four-mode state; QUANTUM COMPUTATION; VARIABLES;
D O I：
10.1016/j.physleta.2013.08.024
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We propose a scheme for implementing a probabilistic controlled-NOT (CNOT) gate for coherent state qubits using only linear optics and a particular four-mode state. The proposed optical setup works, as a CNOT gate, near-faithful when vertical bar alpha vertical bar(2) >= 25 and independent of the input state. The key element for realizing the proposed CNOT scheme is the entangled four-mode state. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：2821 / 2825
页数：5
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