Title
Robust preparation of four-qubit decoherence-free states for superconducting quantum interference devices against collective amplitude damping
Abstract
Based on the quantum Zeno dynamics, we present an approach for deterministic preparation of arbitrary four-qubit decoherence-free state of superconducting quantum interference devices with respective to collective amplitude damping in a decoherence-free way, namely, not only the form of the target state is free of decoherence, but also the whole process for preparation. The operation is fast and convenient since we only need to manipulate three weak laser pulses sequentially. Other decoherence effects such as cavity decay and the spontaneous emission of qubits are also taken into account in virtue of master equation, and the strictly numerical simulation signifies the final fidelity is high corresponding to the current experimental technology.
Year
DOI
Venue
2013
10.1007/s11128-013-0604-y
Quantum Information Processing
Keywords
DocType
Volume
DFS,Quantum Zeno dynamics,SQUID
Journal
12
Issue
ISSN
Citations 
11
1570-0755
0
PageRank 
References 
Authors
0.34
1
3
Name
Order
Citations
PageRank
Xiao-Qiang Shao111.41
Tai-Yu Zheng201.01
Shou Zhang342.45