Protection of Logical Qubits via Optimal State Transfers
Protection of Logical Qubits via Optimal State Transfers
复制标题
通过最佳状态转移保护逻辑量子位
DOI:
10.1103/physrevapplied.11.044023
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发表时间:
2018-06
影响因子:
4.6
通讯作者:
You J. Q.
中科院分区:
文献类型:
--
作者:
Zhang Jiang;Zhou Zheng-Yang;Wu Lian-Ao;You J. Q.
Dynamical decoupling can enforce a symmetry on the dynamics of an open quantum system. Here we develop an efficient dynamical-decoupling-based strategy to create the decoherence-free subspaces (DFSs) for a set of qubits by optimally transferring the states of these qubits. We design to transfer the state of each qubit to all of the other qubits in an optimal and efficient manner, so as to produce an effective collective-type noise for all qubits. This collective pseudo-noise is essentially derived from arbitrarily independent real baths and needs only nearest-neighbor state transfers for its implementation. Moreover, our scheme requires only N steps to produce the effective collective-type noise for a system of N qubits. It provides an experimentally feasible and efficient approach to achieving the DFSs for encoding the protected logical qubits.
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影响因子:
8.6
作者:
Uhrig, Goetz S.
通讯作者:
Uhrig, Goetz S.
DOI:
10.1016/s0375-9601(99)00365-5
发表时间:
1998-09
期刊:
--
影响因子:
--
作者:
P. Zanardi
通讯作者:
P. Zanardi
影响因子:
6.2
作者:
A. Berthiaume
通讯作者:
A. Berthiaume
影响因子:
8.6
作者:
Jingfu Zhang;D. Suter
通讯作者:
Jingfu Zhang;D. Suter
影响因子:
2.9
作者:
L. Duan;G. Guo
通讯作者:
L. Duan;G. Guo