Preparation of Greenberger-Horne-Zeilinger entangled states with multiple superconducting quantum-interference device qubits or atoms in cavity QED

2004 ◽  
Vol 70 (6) ◽  
Author(s):  
Chui-Ping Yang ◽  
Siyuan Han
Keyword(s):  
Quantum Interference ◽  
Cavity Qed ◽  
Entangled States ◽  
Superconducting Quantum Interference Device ◽  
Superconducting Quantum Interference

IMPLEMENTING AN n-QUBIT FREDKIN GATE WITH SUPERCONDUCTING QUANTUM-INTERFERENCE DEVICES IN CAVITY QED

2011 ◽  
Vol 25 (21) ◽  
pp. 2915-2924 ◽  
Author(s):  
ANSHOU ZHENG ◽  
YONGJIN CHENG ◽  
JIBIN LIU ◽  
XICHENG WANG ◽  
YUAN ZHENG
Keyword(s):  
Quantum Interference ◽  
Cavity Qed ◽  
Vacuum State ◽  
Superconducting Quantum Interference Device ◽  
Alternative Scheme ◽  
Superconducting Quantum Interference Devices ◽  
Superconducting Quantum Interference ◽  
Fredkin Gate ◽  
Logical Gate

An alternative scheme is proposed in this paper to realize an n-qubit Fredkin gate with superconducting quantum-interference device (SQUID) in cavity QED. The multiqubit logical gate is essentially accomplished by a sequence of operations on only two SQUIDs in a large-detuned cavity. In the scheme, the two logical states of a qubit are presented by the two lowest states of a SQUID and the cavity is always in vacuum state so that the limit on the cavity is not serious.

PREPARATION OF ENTANGLED STATES OF CAVITY FIELD VIA COUPLING TO SUPERCONDUCTING QUANTUM INTERFERENCE DEVICE

2007 ◽  
Vol 21 (01) ◽  
pp. 17-23
Author(s):  
ZHI-MING ZHAN
Keyword(s):  
Quantum Interference ◽  
Coherent States ◽  
Microwave Pulse ◽  
W State ◽  
Entangled States ◽  
Cavity Field ◽  
Superconducting Quantum Interference Device ◽  
High Quality ◽  
Superconducting Quantum Interference ◽  
Entangled Coherent States

Based on the interaction of a superconducting quantum interference device (SQUID) with the field in high-quality QED and a classical microwave pulse, we propose a scheme for preparing an entangled multipartite W state between different modes of cavity field. In principle, the scheme can be extended to generate a N-party W state. Moreover, the scheme can be used for the generation of multimode entangled coherent states.

Implementation of quantum partial search with superconducting quantum interference device qudits in cavity QED

2013 ◽  
Vol 22 (11) ◽  
pp. 110305
Author(s):  
Hong-Yi Li ◽  
Chun-Wang Wu ◽  
Yu-Bo Chen ◽  
Yuan-Gen Lin ◽  
Ping-Xing Chen ◽  
...  
Keyword(s):  
Quantum Interference ◽  
Cavity Qed ◽  
Superconducting Quantum Interference Device ◽  
Superconducting Quantum Interference
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