Relaxation processes in solid-state two-qubit gates

被引：4
|
作者：
Paladino, E. [1 ,2 ]
D'Arrigo, A. [1 ,2 ]
Mastellone, A. [1 ,2 ,3 ]
Falci, G. [1 ,2 ]
机构：
[1] Univ Catania, INFM, CNR, MATIS, I-95125 Catania, Italy
[2] Univ Catania, DMFCI, I-95125 Catania, Italy
[3] CITA, I-81043 Capua, CE, Italy
来源：
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES | 2010年 / 42卷 / 03期
关键词：
Quantum computation; Quantum dissipative systems; Noise; MACROSCOPIC QUANTUM STATES; OSCILLATIONS; DYNAMICS; QUBITS; PAIR;
D O I：
10.1016/j.physe.2009.06.042
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
We consider a solid-state two-qubit gate Subject to relaxation processes originated by transverse and longitudinal fluctuations of the single-qubit Hamiltonians. We model each noise component as a bosonic bath characterized by a specific power spectrum. We specialize our analysis to a root i-SWAP gate implemented by Josephson qubits in a fixed coupling scheme. For high-frequency noise spectra extrapolated from single-qubit experiments we estimate the efficiency of the root i-SWAP gate from the decay of anti-correlations between single-qubit switching probabilities. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：439 / 443
页数：5
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