Violation of Leggett–Garg Inequalities in Single Quantum Dots
SUN Yong-Nan, ZOU Yang, GE Rong-Chun, TANG Jian-Shun, LI Chuan-Feng**
Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026
Abstract :We investigate the violation of two types of Leggett–Garg (LG) inequalities in self-assembled quantum dots under the stationarity assumption. By comparing the two types of LG inequalities, we find the better one that is easier to be tested in an experiment. In addition, we show that the fine-structure splitting, background noise and temperature of quantum dots greatly affect the violation of LG inequalities.
收稿日期: 2012-08-28
出版日期: 2013-03-04
:
03.65.Ud
(Entanglement and quantum nonlocality)
03.65.Ta
(Foundations of quantum mechanics; measurement theory)
78.67.Hc
(Quantum dots)
[1] Leggett A J and Garg A 1985 Phys. Rev. Lett. 54 857 [2] Huelga S F, Marshall T W and Santos E 1997 Europhys. Lett. 38 249 [3] Tesche C D 1990 Phys. Rev. Lett. 64 2358 [4] Paz J P and Mahler G 1993 Phys. Rev. Lett. 71 3235 [5] Xu J S, Li C F, Zou X B and Guo G C 2011 Sci. Rep. 1 101 [6] Palacios-Laloy A, Mallet F, Nguyen F, Bertet P, Vion D, Esteve D and Korotov A N 2010 Nat. Phys. 6 442 [7] Dressel J, Broadbent C J, Howell J C and Jordan A N 2011 Phys. Rev. Lett. 106 040402 [8] Goggin M E, Almeida M P, Barbieri M, Lanyon B P, O'Brien B P, White A G and Pryde G J 2011 Proc. Natl. Acad. Sci. USA 108 1256 [9] Huelga S F, Marshall T W and Santos E 1995 Phys. Rev. A 52 R2497 [10] Huelga S F, Marshall T W and Santos E 1996 Phys. Rev. A 54 1798 [11] Waldherr G, Neumann P, Huelga S F, Jelezko F and Wrachtrup J 2011 Phys. Rev. Lett. 107 090401 [12] Shields A J 2007 Nat. Photon. 1 215 [13] Loss D and DiVincenzo D P 1998 Phys. Rev. A 57 120 [14] Benson O, Santori C, Pelton M and Yamamoto Y 2000 Phys. Rev. Lett. 84 2513 [15] Stevenson R M, Young R J, Atkinson P, Cooper K, Ritchie D A and Shields A J 2006 Nature 439 179 [16] Young R J, Stevenson R M, Atkinson P, Cooper K, Ritchie D A and Shields A J 2006 New J. Phys. 8 29 [17] Stevenson R M, Hudson A J, Young R J, Atkinson P, Cooper K, Ritchie D A and Shields A J 2007 Opt. Express 15 6507 [18] Stevenson R M, Hudson A J, Bennett A J, Young R J, Nicoll C A, Ritchie D A and Shields A J 2008 Phys. Rev. Lett. 101 170501 [19] Wang Q Q, Muller A, Cheng M T, Zhou H J, Bianucci P and Shih C K 2005 Phys. Rev. Lett. 95 187404 [20] Zou Y, Gong M, Li C F, Chen G, Tang J S and Guo G C 2010 Phys. Rev. A 81 064303
[1]
. [J]. 中国物理快报, 2022, 39(11): 110301-.
[2]
. [J]. 中国物理快报, 2022, 39(7): 70302-.
[3]
. [J]. 中国物理快报, 2022, 39(3): 30302-030302.
[4]
. [J]. 中国物理快报, 2022, 39(3): 30301-.
[5]
. [J]. 中国物理快报, 2021, 38(9): 90301-.
[6]
. [J]. 中国物理快报, 2020, 37(9): 90302-.
[7]
. [J]. 中国物理快报, 0, (): 60301-.
[8]
. [J]. 中国物理快报, 2020, 37(6): 60301-.
[9]
. [J]. 中国物理快报, 2020, 37(1): 10301-010301.
[10]
. [J]. 中国物理快报, 2019, 36(10): 100301-.
[11]
. [J]. 中国物理快报, 2019, 36(8): 80303-.
[12]
. [J]. 中国物理快报, 2019, 36(8): 80304-.
[13]
. [J]. 中国物理快报, 2019, 36(6): 60301-.
[14]
. [J]. 中国物理快报, 2018, 35(11): 110302-.
[15]
. [J]. 中国物理快报, 2018, 35(10): 100301-.