Continuous variable cloning via network of parametric gates

被引:30
作者
D'Ariano, GM
De Martini, F
Sacchi, MF
机构
[1] Univ Pavia, Dipartimento Fis A Volta, I-27100 Pavia, Italy
[2] Univ Pavia, INFM, Unita Pavia, I-27100 Pavia, Italy
[3] Ist Nazl Fis Nucl, Grp 4, Sez Pavia, I-27100 Pavia, Italy
[4] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy
[5] Univ Roma La Sapienza, INFM, I-00185 Rome, Italy
[6] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, Opt Sect, London SW7 2BZ, England
关键词
D O I
10.1103/PhysRevLett.86.914
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We propose an experimental scheme for the cloning machine of continuous quantum variables through a network of parametric amplifiers working as input-output four-port gates.
引用
收藏
页码:914 / 917
页数:4
相关论文
共 25 条
[11]  
DARIANO GM, UNPUB
[12]  
DARIANO GM, QUANTPH0007062
[13]   Amplification of quantum entanglement [J].
De Martini, F .
PHYSICAL REVIEW LETTERS, 1998, 81 (14) :2842-2845
[14]  
De Martini F, 2000, FORTSCHR PHYS, V48, P413, DOI 10.1002/(SICI)1521-3978(200005)48:5/7<413::AID-PROP413>3.0.CO
[15]  
2-3
[16]   Quantum superposition of parametrically amplified multiphoton pure states [J].
De Martini, F .
PHYSICS LETTERS A, 1998, 250 (1-3) :15-19
[17]   Schroedinger cat states and optimum universal quantum cloning by entangled parametric amplification [J].
De Martini, F ;
Mussi, V ;
Bovino, F .
OPTICS COMMUNICATIONS, 2000, 179 (1-6) :581-589
[18]   Information transfer and fidelity in quantum copiers [J].
Deuar, P ;
Munro, WJ .
PHYSICAL REVIEW A, 2000, 61 (06) :13
[19]   Optimal quantum cloning machines [J].
Gisin, N ;
Massar, S .
PHYSICAL REVIEW LETTERS, 1997, 79 (11) :2153-2156
[20]   Quantum cloning, eavesdropping and Bell's inequality [J].
Gisin, N ;
Huttner, B .
PHYSICS LETTERS A, 1997, 228 (1-2) :13-21