Quasiprobabilities for multipartite quantum correlations of light

被引：38

作者：

Agudelo, E. ^{[1
]}

Sperling, J. ^{[1
]}

Vogel, W. ^{[1
]}

机构：

[1] Univ Rostock, Inst Phys, Arbeitsgrp Theoret Quantenopt, D-18051 Rostock, Germany

来源：

PHYSICAL REVIEW A | 2013年 / 87卷 / 03期

关键词：

NONCLASSICAL STATES; OPERATORS; COHERENT;

D O I：

10.1103/PhysRevA.87.033811

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Regular quasiprobabilities are introduced for the aim of characterizing quantum correlations of multimode radiation fields. Negativities of these quantum-correlation quasiprobabilities are necessary and sufficient for any quantum correlation encoded in the multimode Glauber-Sudarshan P function. The strength of the method is demonstrated for a two-mode, phase-randomized, squeezed-vacuum state. It has no entanglement, no quantum discord, a positive Wigner function, and a classical reduced single-mode representation. Our method clearly visualizes the quantum correlations of this state. DOI: 10.1103/PhysRevA.87.033811

引用

页数：7

共 36 条

[1] CALCULUS FOR FUNCTIONS OF NONCOMMUTING OPERATORS AND GENERAL PHASE-SPACE METHODS IN QUANTUM MECHANICS .2. QUANTUM MECHANICS IN PHASE SPACE [J].

AGARWAL, GS ;

WOLF, E .

PHYSICAL REVIEW D, 1970, 2 (10) :2187-+

[2] NONCLASSICAL CHARACTER OF STATES EXHIBITING NO SQUEEZING OR SUB-POISSONIAN STATISTICS [J].

AGARWAL, GS ;

TARA, K .

PHYSICAL REVIEW A, 1992, 46 (01) :485-488

[3] Monotonic functions, Stieltjes integrals and harmonic analyses. [J].

Bochner, S .

MATHEMATISCHE ANNALEN, 1933, 108 :378-410

[4] DENSITY OPERATORS AND QUASIPROBABILITY DISTRIBUTIONS [J].

CAHILL, KE ;

GLAUBER, RJ .

PHYSICAL REVIEW, 1969, 177 (5P1) :1882-+

[5]

Datta A., ARXIV10035256

[6] Reconstruction of non-classical cavity field states with snapshots of their decoherence [J].

Deleglise, Samuel ;

Dotsenko, Igor ;

Sayrin, Clement ;

Bernu, Julien ;

Brune, Michel ;

Raimond, Jean-Michel ;

Haroche, Serge .

NATURE, 2008, 455 (7212) :510-514

[7] EXPERIMENTAL-DETERMINATION OF THE QUANTUM-MECHANICAL STATE OF A MOLECULAR VIBRATIONAL-MODE USING FLUORESCENCE TOMOGRAPHY [J].

DUNN, TJ ;

WALMSLEY, IA ;

MUKAMEL, S .

PHYSICAL REVIEW LETTERS, 1995, 74 (06) :884-887

[8] Nonclassicality Criteria from Phase-Space Representations and Information-Theoretical Constraints Are Maximally Inequivalent [J].

Ferraro, Alessandro ;

Paris, Matteo G. A. .

PHYSICAL REVIEW LETTERS, 2012, 108 (26)

[9] Gaussian Quantum Discord [J].

Giorda, Paolo ;

Paris, Matteo G. A. .

PHYSICAL REVIEW LETTERS, 2010, 105 (02)

[10] COHERENT AND INCOHERENT STATES OF RADIATION FIELD [J].

GLAUBER, RJ .

PHYSICAL REVIEW, 1963, 131 (06) :2766-+

← 1 2 3 4 →