The dependence of fidelity on the squeezing parameter in teleportation of the squeezed coherent states

doi:10.1088/1674-1056/20/5/050311

Abstract This paper investigates an analytical expression of teleportation fidelity in the teleportation scheme of a single mode of electromagnetic field. The fidelity between the original squeezed coherent state and the teleported one is expressed in terms of the squeezing parameter r and the quantum channel parameter (two-mode squeezed state) p. The results of analysis show that the fidelity increases with the increase of the quantum channel parameter p, while the fidelity decreases with the increase of the squeezing parameter r of the squeezed state. Thus the coherent state (r=0) is the best quantum signal for continuous variable quantum teleportation once the quantum channel is built.

Keywords: quantum teleportation the squeezed coherent states fidelity

Received: 05 October 2010
Revised: 18 October 2010
Accepted manuscript online:

PACS:	03.67.Hk	(Quantum communication)
	03.67.Lx	(Quantum computation architectures and implementations)

Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 60773085, 60801051, and 60970109), the National Natural Science Foundation of China–Korea Science and Engineering Foundation International Collaborative Research Funds (Grant Nos. 60811140346 and F01-2008-000-10021-0), and Shanghai Jiao Tong University Participation in Research Pro-gram, China (Grant Nos. T030PRP18001 and T03013002).

Cite this article:

Zhang Jing-Tao (张静涛), He Guang-Qiang (何广强), Ren Li-Jie (任李杰), Zeng Gui-Hua (曾贵华) The dependence of fidelity on the squeezing parameter in teleportation of the squeezed coherent states 2011 Chin. Phys. B 20 050311

[1]	Bennett C H, Brassard G, Crepeau C, Jozsa R, Peres A and Wootters W 1993 Phys. Rev. Lett. 70 1895
[2]	Li Y L, Fang M F, Xiao X, Wu C and Hou L Z 2010 Chin. Phys. B 19 060306
[3]	Nielsen M A and Chuang I L 2000 Quantum Computation and Quantum Information (Cambridge: Cambridge University Press)
[4]	Braunstein S L and Pati A K 2003 Quantum Information with Continuous Variables (Dordrecht: Kluwer Academic)
[5]	Bouwmeester D, Pan J W, Mattle K, Eibl M, Weinfurter H and Zeilinger A 1997 Nature 390 575
[6]	Braunstein S L and Kimble H J 1998 Phys. Rev. Lett. 80 869
[7]	Ralph T C and Lam P K 1998 Phys. Rev. Lett. 81 5668
[8]	Einstein A, Podolsky B and Rosen N 1935 Phys. Rev. 47 777
[9]	Furusawa A, Sorensen J L, Braustein S L, Fuchs C A, Kimble H J and Polzik E S 1998 Science 282 706
[10]	Takei N, Aoki T, Koike S, Yoshino K, Wakui K, Yonezawa H, Hiraoka T, Mizuno J, Takeoka M, Ban M and Furusawa A 2005 Phys. Rev. A 72 042304
[11]	van Loock P and Braunstein S L 1999 Phys. Rev. A 61 010302(R)
[12]	Jia X J, Su X L, Pan Q, Gao J R, Xie C D and Peng K C 2004 Phys. Rev. Lett. 93 250503
[13]	Anno F D, Siena S D, Albano L and Illuminati F 2007 Phys. Rev. A 76 022301
[14]	Olivares S, Paris M G A and Andersen U L 2006 Phys. Rev. A 73 062330
[15]	Scutaruy H 1998 J. Phys. A: Math. Gen. 31 3659
[16]	Nha H and Carmichael H J 2005 Phys. Rev. A 71 032336
[17]	Paraoanu G S and Scutaru H 2000 Phys. Rev. A 61 022306 endfootnotesize

[1]	Engineering topological state transfer in four-period Su-Schrieffer-Heeger chain Xi-Xi Bao(包茜茜), Gang-Feng Guo(郭刚峰), and Lei Tan(谭磊). Chin. Phys. B, 2023, 32(2): 020301.
[2]	Probabilistic quantum teleportation of shared quantum secret Hengji Li(李恒吉), Jian Li(李剑), and Xiubo Chen(陈秀波). Chin. Phys. B, 2022, 31(9): 090303.
[3]	Universal order-parameter and quantum phase transition for two-dimensional q-state quantum Potts model Yan-Wei Dai(代艳伟), Sheng-Hao Li(李生好), and Xi-Hao Chen(陈西浩). Chin. Phys. B, 2022, 31(7): 070502.
[4]	Experimental realization of quantum controlled teleportation of arbitrary two-qubit state via a five-qubit entangled state Xiao-Fang Liu(刘晓芳), Dong-Fen Li(李冬芬), Yun-Dan Zheng(郑云丹), Xiao-Long Yang(杨小龙), Jie Zhou(周杰), Yu-Qiao Tan(谭玉乔), and Ming-Zhe Liu(刘明哲). Chin. Phys. B, 2022, 31(5): 050301.
[5]	Alternative non-Gaussianity measures for quantum states based on quantum fidelity Cheng Xiang(向成), Shan-Shan Li(李珊珊), Sha-Sha Wen(文莎莎), and Shao-Hua Xiang(向少华). Chin. Phys. B, 2022, 31(3): 030306.
[6]	Passively stabilized single-photon interferometer Hai-Long Liu(刘海龙), Min-Jie Wang(王敏杰), Jia-Xin Bao(暴佳鑫), Chao Liu(刘超), Ya Li(李雅), Shu-Jing Li(李淑静), and Hai Wang(王海). Chin. Phys. B, 2022, 31(11): 110306.
[7]	Controlled quantum teleportation of an unknown single-qutrit state in noisy channels with memory Shexiang Jiang(蒋社想), Bao Zhao(赵宝), and Xingzhu Liang(梁兴柱). Chin. Phys. B, 2021, 30(6): 060303.
[8]	Realization of adiabatic and diabatic CZ gates in superconducting qubits coupled with a tunable coupler Huikai Xu(徐晖凯), Weiyang Liu(刘伟洋), Zhiyuan Li(李志远), Jiaxiu Han(韩佳秀), Jingning Zhang(张静宁), Kehuan Linghu(令狐克寰), Yongchao Li(李永超), Mo Chen(陈墨), Zhen Yang(杨真), Junhua Wang(王骏华), Teng Ma(马腾), Guangming Xue(薛光明), Yirong Jin(金贻荣), and Haifeng Yu(于海峰). Chin. Phys. B, 2021, 30(4): 044212.
[9]	Average fidelity estimation of twirled noisy quantum channel using unitary 2t-design Linxi Zhang(张林曦), Changhua Zhu(朱畅华), Changxing Pei(裴昌幸). Chin. Phys. B, 2019, 28(1): 010304.
[10]	Estimation of photon counting statistics with imperfect detectors Xiao-Chuan Han(韩晓川), Dong-Wei Zhuang(庄东炜), Yu-Xuan Li(李雨轩), Jun-Feng Song(宋俊峰), Yong-Sheng Zhang(张永生). Chin. Phys. B, 2018, 27(7): 074208.
[11]	Arbitrated quantum signature scheme with continuous-variable squeezed vacuum states Yan-Yan Feng(冯艳艳), Rong-Hua Shi(施荣华), Ying Guo(郭迎). Chin. Phys. B, 2018, 27(2): 020302.
[12]	Identifying the closeness of eigenstates in quantum many-body systems Hai-bin Li(李海彬), Yang Yang(杨扬), Pei Wang(王沛), Xiao-guang Wang(王晓光). Chin. Phys. B, 2017, 26(8): 080502.
[13]	Bidirectional multi-qubit quantum teleportation in noisy channel aided with weak measurement Guang Yang(杨光), Bao-Wang Lian(廉保旺), Min Nie(聂敏), Jiao Jin(金娇). Chin. Phys. B, 2017, 26(4): 040305.
[14]	An intermediate state of T7 RNA polymerase provides another pathway of nucleotide selection Zhan-Feng Wang(王展峰), Yu-Ru Liu(刘玉如), Peng-Ye Wang(王鹏业), Ping Xie(谢平). Chin. Phys. B, 2017, 26(10): 100203.
[15]	Fidelity between Gaussian mixed states with quantum state quadrature variances Hai-Long Zhang(张海龙), Chun Zhou(周淳), Jian-Hong Shi(史建红), Wan-Su Bao(鲍皖苏). Chin. Phys. B, 2016, 25(4): 040304.

No Suggested Reading articles found!

Viewed

Full text

Abstract

Cited

Metrics
Related Articles

The dependence of fidelity on the squeezing parameter in teleportation of the squeezed coherent states

Cite this article:

Online attention