Purcell effect in a circuit-QED architecture implementation of a universal two-qubit gate

被引：1
|
作者：
Paladino, Elisabetta [1 ,2 ]
D'Arrigo, Antonio [1 ,2 ]
Falci, G. [1 ,2 ]
机构：
[1] Univ Catania, Dipartimento Fis & Astron, I-95125 Catania, Italy
[2] CNR IMM MATIS, I-95123 Catania, Italy
来源：
PHYSICA SCRIPTA | 2012年 / T151卷
关键词：
2-PHASE QUBITS; QUANTUM;
D O I：
10.1088/0031-8949/2012/T151/014048
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We study spontaneous emission processes of two capacitively coupled superconducting qubits embedded in transmission-line resonators in a circuit-quantum electrodynamics architecture. We find that under proper conditions of the entanglement generating operation, a Purcell protection from spontaneous emission occurs. We discuss the dependence of this effect on the coupling energy between the two qubits and comment on the possibility of finding a trade-off between optimization of the gate with respect to low-frequency noise and relaxation effects.
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页数：6
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