Realizing Three-Qubit Quantum-Gate Operation in a Cavity-QED System

2007 ◽  
Author(s):  
Amitabh Joshi ◽  
Min Xiao
Keyword(s):  
Cavity Qed ◽  
Quantum Gate ◽  
Gate Operation

Realizing an N-two-qubit quantum logic gate in a cavity QED with nearest qubit--qubit interaction

2016 ◽  
Vol 16 (5&6) ◽  
pp. 465-482
Author(s):  
Taoufik Said ◽  
Abdelhaq Chouikh ◽  
Karima Essammouni ◽  
Mohamed Bennai
Keyword(s):  
Quantum Logic ◽  
Cavity Qed ◽  
Logic Gate ◽  
Operation Time ◽  
Logic Gates ◽  
Initial State ◽  
Gate Operation ◽  
Quantum Logic Gates ◽  
Current State ◽  
Phase Gate

We propose an effective way for realizing a three quantum logic gates (NTCP gate, NTCP-NOT gate and NTQ-NOT gate) of one qubit simultaneously controlling N target qubits based on the qubit-qubit interaction. We use the superconducting qubits in a cavity QED driven by a strong microwave field. In our scheme, the operation time of these gates is independent of the number N of qubits involved in the gate operation. These gates are insensitive to the initial state of the cavity QED and can be used to produce an analogous CNOT gate simultaneously acting on N qubits. The quantum phase gate can be realized in a time (nanosecond-scale) much smaller than decoherence time and dephasing time (microsecond-scale) in cavity QED. Numerical simulation under the influence of the gate operations shows that the scheme could be achieved efficiently within current state-of-the-art technology.

scholarly journals Electron dynamics in quantum gate operation

2007 ◽  
Vol 19 (28) ◽  
pp. 282201 ◽  
Author(s):  
A Kerridge ◽  
A H Harker ◽  
A M Stoneham
Keyword(s):  
Quantum Gate ◽  
Electron Dynamics ◽  
Gate Operation

Realization of Three-Qubit Controlled-Phase Gate Operation with Atoms in Cavity QED System

2009 ◽  
Vol 26 (2) ◽  
pp. 020310 ◽  
Author(s):  
Tang Shi-Qing ◽  
Zhang Deng-Yu ◽  
Xie Li-Jun ◽  
Zhan Xiao-Gui ◽  
Gao Feng
Keyword(s):  
Cavity Qed ◽  
Gate Operation ◽  
Phase Gate ◽  
Controlled Phase Gate

A Scheme for Atomic Entangled States and Quantum Gate Operations in Cavity QED

2009 ◽  
Vol 26 (3) ◽  
pp. 030301 ◽  
Author(s):  
Li Peng-Bo ◽  
Gu Ying ◽  
Gong Qi-Huang ◽  
Guo Guang-Can
Keyword(s):  
Cavity Qed ◽  
Quantum Gate ◽  
Entangled States

Quantum gate operation with non-instantaneous unitary kicks

2011 ◽  
Vol 284 (4) ◽  
pp. 1099-1104
Author(s):  
Xiao-Qiang Shao ◽  
Li Chen ◽  
Shou Zhang ◽  
Yong-Fang Zhao ◽  
Kyu-Hwang Yeon
Keyword(s):  
Quantum Gate ◽  
Gate Operation
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