Quantum phase estimation with squeezed quasi-Bell states

被引：0

作者：

de Souza, Douglas Delgado ^{[1
]}

Vidiella-Barranco, A. ^{[1
]}

机构：

[1] Univ Estadual Campinas, Gleb Wataghin Inst Phys, BR-13083859 Campinas, SP, Brazil

来源：

OPTIK | 2021年 / 244卷

基金：

巴西圣保罗研究基金会;

关键词：

Parameter estimation; Quantum Fisher information; Entangled states; Squeezed states; ENTANGLEMENT; LIMIT;

D O I：

10.1016/j.ijleo.2021.167532

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this paper we present a study of the quantum phase estimation problem employing continuous-variable, entangled squeezed coherent (quasi-Bell) states as probe states. We show that their inherent squeezing and entanglement properties might bring advantages, increasing the precision of phase estimation compared to protocols which employ other continuous variable states e.g., two-mode, entangled coherent states or single-mode, squeezed states. We also analyze the phase estimation process considering: (i) a linear (unitary) perturbation, and (ii) dissipation, and conclude that the use of entangled squeezed coherent states as probe states may still be advantageous even under non-ideal conditions.

引用

页数：10

共 41 条

[1] Observation of Gravitational Waves from a Binary Black Hole Merger [J].

Abbott, B. P. ;

Abbott, R. ;

Abbott, T. D. ;

Abernathy, M. R. ;

Acernese, F. ;

Ackley, K. ;

Adams, C. ;

Adams, T. ;

Addesso, P. ;

Adhikari, R. X. ;

Adya, V. B. ;

Affeldt, C. ;

Agathos, M. ;

Agatsuma, K. ;

Aggarwal, N. ;

Aguiar, O. D. ;

Aiello, L. ;

Ain, A. ;

Ajith, P. ;

Allen, B. ;

Allocca, A. ;

Altin, P. A. ;

Anderson, S. B. ;

Anderson, W. G. ;

Arai, K. ;

Arain, M. A. ;

Araya, M. C. ;

Arceneaux, C. C. ;

Areeda, J. S. ;

Arnaud, N. ;

Arun, K. G. ;

Ascenzi, S. ;

Ashton, G. ;

Ast, M. ;

Aston, S. M. ;

Astone, P. ;

Aufmuth, P. ;

Aulbert, C. ;

Babak, S. ;

Bacon, P. ;

Bader, M. K. M. ;

Baker, P. T. ;

Baldaccini, F. ;

Ballardin, G. ;

Ballmer, S. W. ;

Barayoga, J. C. ;

Barclay, S. E. ;

Barish, B. C. ;

Barker, D. ;

Barone, F. .

PHYSICAL REVIEW LETTERS, 2016, 116 (06)

[2]

[Anonymous], 1976, MATH SCI ENG SERIES

[3] Quantum interferometric optical lithography: Exploiting entanglement to beat the diffraction limit [J].

Boto, AN ;

Kok, P ;

Abrams, DS ;

Braunstein, SL ;

Williams, CP ;

Dowling, JP .

PHYSICAL REVIEW LETTERS, 2000, 85 (13) :2733-2736

[4] QUANTUM-MECHANICAL NOISE IN AN INTERFEROMETER [J].

CAVES, CM .

PHYSICAL REVIEW D, 1981, 23 (08) :1693-1708

[5] Individual Quantum Probes for Optimal Thermometry [J].

Correa, Luis A. ;

Mehboudi, Mohammad ;

Adesso, Gerardo ;

Sanpera, Anna .

PHYSICAL REVIEW LETTERS, 2015, 114 (22)

[6] The generation and properties of new classes of multipartite entangled coherent squeezed states in a conducting cavity [J].

Daneshmand, R. ;

Tavassoly, M. K. .

ANNALEN DER PHYSIK, 2017, 529 (05)

[7] Quantum parameter estimation affected by unitary disturbance [J].

De Pasquale, A. ;

Rossini, D. ;

Facchi, P. ;

Giovannetti, V. .

PHYSICAL REVIEW A, 2013, 88 (05)

[8]

Escher BM, 2011, NAT PHYS, V7, P406, DOI [10.1038/NPHYS1958, 10.1038/nphys1958]

[9] Improving the efficiency of single and multiple teleportation protocols based on the direct use of partially entangled states [J].

Fortes, Raphael ;

Rigolin, Gustavo .

ANNALS OF PHYSICS, 2013, 336 :517-539

[10] Nonlinear interferometer as a resource for maximally entangled photonic states: Application to interferometry [J].

Gerry, CC ;

Benmoussa, A ;

Campos, RA .

PHYSICAL REVIEW A, 2002, 66 (01) :8

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