Implementation of a two-atom √swap gate in cavity QED

被引:8
作者
Liu Qi [1 ]
Ye Liu [1 ]
机构
[1] Anhui Univ, Sch Phys & Mat Sci, Hefei 230039, Peoples R China
关键词
D O I
10.1088/0256-307X/24/3/004
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We implement a two-atom root swap gate via cavity QED. During the preparation, a cavity-assisted collision between atoms is required, and this does not need any auxiliary atom. The cavity is only virtually excited, thus our scheme is insensitive to the cavity field states and to the cavity decay. The scheme can be implemented by the present cavity QED techniques.
引用
收藏
页码:599 / 601
页数:3
相关论文
共 28 条
[1]   CONDITIONAL QUANTUM DYNAMICS AND LOGIC GATES [J].
BARENCO, A ;
DEUTSCH, D ;
EKERT, A ;
JOZSA, R .
PHYSICAL REVIEW LETTERS, 1995, 74 (20) :4083-4086
[2]   ELEMENTARY GATES FOR QUANTUM COMPUTATION [J].
BARENCO, A ;
BENNETT, CH ;
CLEVE, R ;
DIVINCENZO, DP ;
MARGOLUS, N ;
SHOR, P ;
SLEATOR, T ;
SMOLIN, JA ;
WEINFURTER, H .
PHYSICAL REVIEW A, 1995, 52 (05) :3457-3467
[3]   Practical scheme for quantum computation with any two-qubit entangling gate [J].
Bremner, MJ ;
Dawson, CM ;
Dodd, JL ;
Gilchrist, A ;
Harrow, AW ;
Mortimer, D ;
Nielsen, MA ;
Osborne, TJ .
PHYSICAL REVIEW LETTERS, 2002, 89 (24)
[4]   Implementation of a CNOT gate in two cold Rydberg atoms by the nonholonomic control technique [J].
Brion, E ;
Comparat, D ;
Harel, G .
EUROPEAN PHYSICAL JOURNAL D, 2006, 38 (02) :381-387
[5]  
Cai QY, 2004, CHINESE PHYS LETT, V21, P1189, DOI 10.1088/0256-307X/21/7/001
[6]   SCHEMES FOR ATOMIC-STATE TELEPORTATION [J].
CIRAC, JI ;
PARKINS, AS .
PHYSICAL REVIEW A, 1994, 50 (06) :R4441-R4444
[7]  
DAVIDOVICH L, 1994, PHYS REV A, V50, P895
[8]   SIMPLE CAVITY-QED 2-BIT UNIVERSAL QUANTUM LOGIC GATE - THE PRINCIPLE AND EXPECTED PERFORMANCES [J].
DOMOKOS, P ;
RAIMOND, JM ;
BRUNE, M ;
HAROCHE, S .
PHYSICAL REVIEW A, 1995, 52 (05) :3554-3559
[9]   Quantum computing in optical microtraps based on the motional states of neutral atoms [J].
Eckert, K ;
Mompart, J ;
Yi, XX ;
Schliemann, J ;
Bruss, D ;
Birkl, G ;
Lewenstein, M .
PHYSICAL REVIEW A, 2002, 66 (04) :11
[10]   Quantum computing using single photons and the Zeno effect [J].
Franson, JD ;
Jacobs, BC ;
Pittman, TB .
PHYSICAL REVIEW A, 2004, 70 (06) :062302-1