Spin squeezing in Dicke-class of states with non-orthogonal spinors

doi:10.1088/1674-1056/28/6/060302

中国物理B ›› 2019, Vol. 28 ›› Issue (6): 60302-060302.doi: 10.1088/1674-1056/28/6/060302

• SPECIAL TOPIC—Recent advances in thermoelectric materials and devices • 上一篇下一篇

Spin squeezing in Dicke-class of states with non-orthogonal spinors

K S Akhilesh, K S Mallesh, Sudha, Praveen G Hegde

1 Department of Physics, University of Mysore, Manasagangotri, Mysuru-570006, Karnataka, India;
2 Department of Physics, Kuvempu University, Shankaraghatta, Shimoga-577 451, India;
3 Inspire Institute Inc., Alexandria, Virginia 22303, USA

收稿日期:2019-01-09 修回日期:2019-03-29 出版日期:2019-06-05 发布日期:2019-06-05
通讯作者: Sudha E-mail:arss@rediffmail.com

Spin squeezing in Dicke-class of states with non-orthogonal spinors

K S Akhilesh¹, K S Mallesh¹, Sudha^2,3, Praveen G Hegde¹

1 Department of Physics, University of Mysore, Manasagangotri, Mysuru-570006, Karnataka, India;
2 Department of Physics, Kuvempu University, Shankaraghatta, Shimoga-577 451, India;
3 Inspire Institute Inc., Alexandria, Virginia 22303, USA

Received:2019-01-09 Revised:2019-03-29 Online:2019-06-05 Published:2019-06-05
Contact: Sudha E-mail:arss@rediffmail.com

摘要/Abstract

摘要：

The celebrated Majorana representation is exploited to investigate spin squeezing in different classes of pure symmetric states of N qubits with two distinct spinors, namely the Dicke-class of states. On obtaining a general expression for spin squeezing parameter, the variation of squeezing for different configurations is studied in detail. It is shown that the states in the Dicke-class, characterized by two-distinct non-orthogonal spinors, exhibit squeezing.

关键词: Majorana representation of pure symmetric multiqubit states, spin squeezing, Dicke states

Abstract:

Key words: Majorana representation of pure symmetric multiqubit states, spin squeezing, Dicke states

中图分类号: (Entanglement and quantum nonlocality)

03.65.Ud

03.67.Bg (Entanglement production and manipulation)

K S Akhilesh, K S Mallesh, Sudha, Praveen G Hegde. Spin squeezing in Dicke-class of states with non-orthogonal spinors[J]. 中国物理B, 2019, 28(6): 60302-060302.

K S Akhilesh, K S Mallesh, Sudha, Praveen G Hegde. Spin squeezing in Dicke-class of states with non-orthogonal spinors[J]. Chin. Phys. B, 2019, 28(6): 60302-060302.

参考文献 35

[1]	Kimble H J and Walls D F 1987 J. Opt. Soc. B 4 1450 doi: 10.1364/JOSAB.4.001450
[2]	Loudon R and Knight P L 1987 J. Mod. Opt. 34 709 doi: 10.1080/09500348714550721
[3]	Wodkiewicz K 1985 Phys. Rev. B 32 4750 doi: 10.1103/PhysRevB.32.4750
[4]	Kitegawa M and Ueda M 1993 Phys. Rev. A 47 5138 doi: 10.1103/PhysRevA.47.5138
[5]	Wineland D J, Bollinger J J, Itano W M and Heinzen D J 1994 Phys. Rev. A 50 67 doi: 10.1103/PhysRevA.50.67
[6]	Agarwal G S and Puri R R 1990 Phys. Rev. A 41 3782 doi: 10.1103/PhysRevA.41.3782
[7]	Agarwal G S and Puri R R 2019 Quantum. Inf. Proc. 18 144 doi: 10.1007/s11128-019-2244-3
[8]	Puri R R 1997 Pramana 48 787 doi: 10.1007/BF02845612
[9]	Mallesh K S, Swarnamala Sirsi, Sbaih M A A, Deepak P N and Ramachandran G 2000 J. Phys. A: Math. Gen. 33 779 doi: 10.1088/0305-4470/33/4/310
[10]	Sorenson A, Duan L M, Cirac J I and Zoller P 2001 Nature 409 63 doi: 10.1038/35051038
[11]	Ulam-Orgikh D and Kitagawa M 2001 Phys. Rev. A 64 052106 doi: 10.1103/PhysRevA.64.052106
[12]	Usha Devi A R, Mallesh K S, Sbaih M A A, Nalini K B and Ramachandran G 2003 J. Phys. A: Math. Gen. 36 5333 doi: 10.1088/0305-4470/36/19/310
[13]	Usha Devi A R, Wang X and Sanders B C 2003 Quantum Inf. Proc. 2 209
[14]	Usha Devi A R and Sudha 2011 Asian Journal of Physics 20 131
[15]	Wang X and Sanders B C 2003 Phys. Rev. A 68 03382
[16]	Wang X and Molmer K 2002 Eur. Phys. J. D 18 385
[17]	Usha Devi A R, Uma M S, Prabhu R and Sudha 2006 Int. J. Mod. Phys. B. 20 1917 doi: 10.1142/S0217979206034406
[18]	Usha Devi A R, Uma M S, Prabhu R and Sudha 2005 J. Opt. B: Quantum Semiclass. Opt. 7 S740
[19]	Yan D, Wang X G, Song L J and Zong Z G 2007 Cent. Eur. J. Phys. 5 367
[20]	Usha Devi A R, Uma M S, Prabhu R and Rajagopal A K 2007 Phys. Lett. A 364 203 doi: 10.1016/j.physleta.2006.11.073
[21]	Toth G, Knapp C, Guhne O, Briegel H J 2009 Phys. Rev. A 79 042334 doi: 10.1103/PhysRevA.79.042334
[22]	Ma J, Wang X, Sun C P and Nori F 2011 Phys. Rep. 509 89 doi: 10.1016/j.physrep.2011.08.003
[23]	Vitagliano G, Hyllus P, Egusquiza I L and Tóth G 2011 Phys. Rev. Lett. 107 240502 doi: 10.1103/PhysRevLett.107.240502
[24]	Song-song Li 2011 Int. J. Theor. Phys. 50 719 doi: 10.1007/s10773-010-0601-1
[25]	Divyamani B G, Sudha and Usha Devi A R 2016 Int. J. Theor. Phys. 55 2324 doi: 10.1007/s10773-015-2870-1
[26]	Wanlu Song, Wanli Yang, Junhong An and Mang Feng 2017 Opt. Express 25 19226 doi: 10.1364/OE.25.019226
[27]	Caves C M 1981 Phys. Rev. D 23 1693 doi: 10.1103/PhysRevD.23.1693
[28]	Yurke B 1986 Phys. Rev. Lett. 56 1515 doi: 10.1103/PhysRevLett.56.1515
[29]	Kitegawa M and Ueda M 1991 Phys. Rev. Lett. 67 1852 doi: 10.1103/PhysRevLett.67.1852
[30]	Majorana E 1932 Nuovo Cimento 9 43 doi: 10.1007/BF02960953
[31]	Bastin T, Krins S, Mathonet P, Godefroid M, Lamata L and Solano 2009 E Phys. Rev. Lett. 103 070503 doi: 10.1103/PhysRevLett.103.070503
[32]	Usha Devi A R, Sudha and Rajgopal A K 2012 Quantum Inf. Proc. 11 685 doi: 10.1007/s11128-011-0280-8
[33]	Sackett C A, et al. 2000 Nature 404 256 doi: 10.1038/35005011
[34]	Usha Devi A R, Prabhu R and Rajagopal A K 2007 Phys. Rev. Lett. 98 060501 doi: 10.1103/PhysRevLett.98.060501
[35]	Akhilesh K S, Divyamani B G, Sudha, Usha Devi A R and Mallesh K S 2019 Quantum. Inf. Proc. 18 144 doi: 10.1007/s11128-019-2244-3

Spin squeezing in Dicke-class of states with non-orthogonal spinors

Spin squeezing in Dicke-class of states with non-orthogonal spinors

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