Photon entanglement in the phase-space Q representation of quantum optics

被引：5

作者：

Santos, E ^{[1
]}

机构：

[1] Univ Cantabria, Dept Fis, E-39005 Santander, Spain

来源：

EUROPEAN PHYSICAL JOURNAL D | 2003年 / 22卷 / 03期

关键词：

D O I：

10.1140/epjd/e2003-00028-6

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Several examples of photon entanglement are studied in the Q representation of quantum optics. In particular, the entangled states produced in parametric downconversion are studied in detail; and we determine the conditions for the violation of Bell's inequality. Our approach shows that photon entanglement is related to the existence of correlations between the quantum fluctuations of the electromagnetic field associated to different modes.

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页码：423 / 431

页数：9

相关论文

共 16 条

[1]

[Anonymous], QUANTPH0204020

[2] Spectrum of the parametric down converted radiation calculated in the Wigner function formalism [J].

Casado, A ;

Marshall, T ;

Risco-Delgado, R ;

Santos, E .

EUROPEAN PHYSICAL JOURNAL D, 2001, 13 (01) :109-119

[3] QUANTUM-MECHANICAL RADIATION-PRESSURE FLUCTUATIONS IN AN INTERFEROMER [J].

CAVES, CM .

PHYSICAL REVIEW LETTERS, 1980, 45 (02) :75-79

[4] Inseparability criterion for continuous variable systems [J].

Duan, LM ;

Giedke, G ;

Cirac, JI ;

Zoller, P .

PHYSICAL REVIEW LETTERS, 2000, 84 (12) :2722-2725

[5] Separability of two-party Gaussian states -: art. no. 054303 [J].

Englert, BG ;

Wódkiewicz, K .

PHYSICAL REVIEW A, 2002, 65 (05) :543031-543034

[6] Information and computation:: Classical and quantum aspects [J].

Galindo, A ;

Martín-Delgado, MA .

REVIEWS OF MODERN PHYSICS, 2002, 74 (02) :347-423

[7]

GIEDKE G, 1995, PHYS REV LETT, V87

[8] EXPERIMENTAL-EVIDENCE FOR A PHOTON ANTICORRELATION EFFECT ON A BEAM SPLITTER - A NEW LIGHT ON SINGLE-PHOTON INTERFERENCES [J].

GRANGIER, P ;

ROGER, G ;

ASPECT, A .

EUROPHYSICS LETTERS, 1986, 1 (04) :173-179

[9] NEW HIGH-INTENSITY SOURCE OF POLARIZATION-ENTANGLED PHOTON PAIRS [J].

KWIAT, PG ;

MATTLE, K ;

WEINFURTER, H ;

ZEILINGER, A ;

SERGIENKO, AV ;

SHIH, YH .

PHYSICAL REVIEW LETTERS, 1995, 75 (24) :4337-4341

[10]

Mandel L, 1995, OPTICAL COHERENCE QU