Universal feedback control of two-qubit entanglement

被引：18
|
作者：
Rafiee, Morteza [1 ]
Nourmandipour, Alireza [2 ]
Mancini, Stefano [3 ,4 ]
机构：
[1] Shahrood Univ Technol, Dept Phys, Shahrood 3619995161, Iran
[2] Yazd Univ, Fac Phys, Atom & Mol Grp, Yazd 89195741, Iran
[3] Univ Camerino, Sch Sci & Technol, I-62032 Camerino, Italy
[4] Ist Nazl Fis Nucl, Sez Perugia, Via A Pascoli, I-06123 Perugia, Italy
来源：
PHYSICAL REVIEW A | 2017年 / 96卷 / 01期
关键词：
QUANTUM; QUBITS; STATE;
D O I：
10.1103/PhysRevA.96.012340
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We consider two qubits undergoing local dissipation and subject to local driving. We then determine the optimal Markovian feedback action to preserve initial entanglement as well as to create stationary entanglement with the help of an XY interaction Hamiltonian. Such feedback actions are worked out in a way not depending on the initial two-qubit state, whence called universal.
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页数：7
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