Amplitude-squared squeezing of Schrodinger cat states via postselected von Neumann measurement

被引：2

作者：

Aishan, Nuerbiya ^{[1
]}

Yusufu, Taximaiti ^{[1
]}

Turek, Yusuf ^{[1
]}

机构：

[1] Xinjiang Normal Univ, Sch Phys & Elect Engn, Urumqi 830054, Xinjiang, Peoples R China

来源：

EUROPEAN PHYSICAL JOURNAL PLUS | 2022年 / 137卷 / 02期

基金：

中国国家自然科学基金;

关键词：

2-PHOTON COHERENT STATES; BINOMIAL STATES; FIELD AMPLITUDE; OPTICAL COMMUNICATION; QUANTUM; GENERATION; LIGHT; NOISE; TELEPORTATION; ENTANGLEMENT;

D O I：

10.1140/epjp/s13360-022-02441-z

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We know that the original Schrodinger cat states have no amplitude-squared squeezing. In this paper, we investigate the amplitude-squared squeezing of Schrodinger cat states using postselected von Neumann measurement. The results show that after postselected von Neumann measurement, the amplitude-squared squeezing of Schrodinger cat states change dramatically and this can be considered a result of weak value amplification. The squeezing effect also investigated by studying the Wigner function of Schrodinger cat states after postselected measurement.

引用

页数：10

共 82 条

[1]

Agarwal GS, 2013, QUANTUM OPTICS, P1

[2] Quantum averages of weak values [J].

Aharonov, Y ;

Botero, A .

PHYSICAL REVIEW A, 2005, 72 (05)

[3]

Aharonov Y, 2005, QUANTUM PARADOXES: QUANTUM THEORY FOR THE PERPLEXED, P1, DOI 10.1002/9783527619115

[4] HOW THE RESULT OF A MEASUREMENT OF A COMPONENT OF THE SPIN OF A SPIN-1/2 PARTICLE CAN TURN OUT TO BE 100 [J].

AHARONOV, Y ;

ALBERT, DZ ;

VAIDMAN, L .

PHYSICAL REVIEW LETTERS, 1988, 60 (14) :1351-1354

[5] Sqeezing and amplitude-squared squeezing in the model of two nonidentical two-level atom [J].

Bashkirov, E. K. .

INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 2007, 21 (02) :145-157

[6] SQUEEZING OF THE SQUARE OF THE FIELD AMPLITUDE IN THE 2-ATOM ONE-MODE MODEL WITH MULTIPHOTON TRANSITIONS [J].

BASHKIROV, EK ;

SHUMOVSKY, AS .

INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 1990, 4 (09) :1579-1587

[7] Simplified algebraic description of weak measurements with Hermite-Gaussian and Laguerre-Gaussian pointer states [J].

Bernardo, Bertulio de Lima ;

Azevedo, Sergio ;

Rosas, Alexandre .

OPTICS COMMUNICATIONS, 2014, 331 :194-197

[8] Dense coding for continuous variables [J].

Braunstein, SL ;

Kimble, HJ .

PHYSICAL REVIEW A, 2000, 61 (04) :4

[9] Teleportation of continuous quantum variables [J].

Braunstein, SL ;

Kimble, HJ .

PHYSICAL REVIEW LETTERS, 1998, 80 (04) :869-872

[10] Non-classical light generated by quantum-noise-driven cavity optomechanics [J].

Brooks, Daniel W. C. ;

Botter, Thierry ;

Schreppler, Sydney ;

Purdy, Thomas P. ;

Brahms, Nathan ;

Stamper-Kurn, Dan M. .

NATURE, 2012, 488 (7412) :476-480

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