Quantum Fisher information;
local and nonlocal information;
noisy channels;
qubit-qutrit;
Rindler space;
QUANTUM FISHER INFORMATION;
ENTANGLEMENT;
D O I:
10.1142/S0219749919500321
中图分类号:
TP301 [理论、方法];
学科分类号:
081202 ;
摘要:
Protecting the accelerated information coherence and suppressing of its decay due to the acceleration is achieved by using different noisy channels. The behavior of three different types of information; Fisher, nonlocal and local information of qubit-qutrit system is discussed. It is shown that, the estimation rate of the acceleration parameter is maximized if both subsystems are accelerated and interacted locally with their noise channels. However, if the largest subsystem is accelerated, then the estimation rate is minimized The rate of change of the nonlocal information depends on which subsystem is accelerated. The results display that the local information is almost unaltered during the acceleration process, that is, the information is frozen. We show that the phase-flip channel represents the weak channel, where its suppressing of the decay due to the acceleration is smaller than the dephasing and depolarize of channels.
机构:
Math. Dept College of Science, University of Bahrain Bahrain Department of Mathematics, Aswan University Aswan, Sahari,81528, EgyptMath. Dept College of Science, University of Bahrain Bahrain Department of Mathematics, Aswan University Aswan, Sahari,81528, Egypt
Metwally, Nasser
Quantum Information and Computation,
2016,
16
(5-6):
: 530
-
542
机构:
Boston Univ, Dept Phys, Boston, MA 02215 USABoston Univ, Quantum Imaging Lab, Dept Elect & Comp Engn, Boston, MA 02215 USA
Ann, Kevin
Jaeger, Gregg
论文数: 0引用数: 0
h-index: 0
机构:
Boston Univ, Quantum Imaging Lab, Dept Elect & Comp Engn, Boston, MA 02215 USA
Boston Univ, Div Nat Sci, Boston, MA 02215 USABoston Univ, Quantum Imaging Lab, Dept Elect & Comp Engn, Boston, MA 02215 USA
机构:
State Key Laboratory of Precision Spectroscopy, East China Normal UniversityState Key Laboratory of Precision Spectroscopy, East China Normal University
Yi-Jun Lian
Jin-Ming Liu
论文数: 0引用数: 0
h-index: 0
机构:
State Key Laboratory of Precision Spectroscopy, East China Normal UniversityState Key Laboratory of Precision Spectroscopy, East China Normal University