Coherence of Superposition States

被引：0

作者：

宇文珊珊 ^{[1
]}

邵连合 ^{[2
]}

席政军 ^{[1
]}

机构：

[1] College of Computer Science,Shaanxi Normal University

[2] School of Computer Science,Xi'an Polytechnic University

来源：

CommunicationsinTheoreticalPhysics | 2019年 / 71卷 / 09期

基金：

中央高校基本科研业务费专项资金资助; 中国国家自然科学基金;

关键词：

quantum coherence; superposition states; l1-norm of coherence;

D O I：

暂无

中图分类号：

O413 [量子论];

学科分类号：

摘要：

We find tight upper bound on the coherence of a superposition of two states in terms of the coherence of the two states constituting the superposition with l1-norm of coherence. Our upper bound is tighter than the one presented by Liu, et al. [Quantum Inf. Process. 15(2016) 4209.] We also generalize the results to the case that the superposition is constituted with more than two states in high dimension, and we give the corresponding upper bounds.

引用

页码：1084 / 1088

页数：5

共 50 条

[41] THE 2 FREQUENCY RELAXATION AND SUPERPOSITION STATES
GRECHISHKIN, VS
MOZSZHUKHIN, GV
BODNJA, AV
JOURNAL OF MOLECULAR STRUCTURE, 1982, 83 (1-4) : 101 - 104
[42] Coherent superposition states as quantum rulers
Ralph, TC
PHYSICAL REVIEW A, 2002, 65 (04): : 5
[43] Creating a Superposition of Unknown Quantum States
Oszmaniec, Michal
Grudka, Andrzej
Horodecki, Michal
Wojcik, Antoni
PHYSICAL REVIEW LETTERS, 2016, 116 (11)
[44] Probability nature of the superposition of coherent states
Rath, B
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2003, 72 (08) : 2120 - 2121
[45] Quantum superposition of distinct macroscopic states
Jonathan R. Friedman
Vijay Patel
W. Chen
S. K. Tolpygo
J. E. Lukens
Nature, 2000, 406 : 43 - 46
[46] A size criterion for macroscopic superposition states
Björk, G
Mana, PGL
JOURNAL OF OPTICS B-QUANTUM AND SEMICLASSICAL OPTICS, 2004, 6 (11) : 429 - 436
[47] Quantum superposition of distinct macroscopic states
Friedman, JR
Patel, V
Chen, W
Tolpygo, SK
Lukens, JE
NATURE, 2000, 406 (6791) : 43 - 46
[48] Quantum computation with mesoscopic superposition states
de Oliveira, MC
Munro, WJ
PHYSICAL REVIEW A, 2000, 61 (04): : 9 - 423099
[49] Visualization of superposition of macroscopically distinct states
Morimae, Tomoyuki
Shimizu, Akira
PHYSICAL REVIEW A, 2006, 74 (05):
[50] Macroscopicity of Mechanical Quantum Superposition States
Nimmrichter, Stefan
Hornberger, Klaus
PHYSICAL REVIEW LETTERS, 2013, 110 (16)

← 1 2 3 4 5 →