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An optimized cluster density matrix embedding theory |
| Hao Geng(耿浩) and Quan-lin Jie(揭泉林)† |
| Department of Physics, Wuhan University, Wuhan 430072, China |
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Abstract We propose an optimized cluster density matrix embedding theory (CDMET). It reduces the computational cost of CDMET with simpler bath states. And the result is as accurate as the original one. As a demonstration, we study the distant correlations of the Heisenberg J1-J2 model on the square lattice. We find that the intermediate phase (0.43≤sssim J2≤sssim 0.62) is divided into two parts. One part is a near-critical region (0.43≤J2≤0.50). The other part is the plaquette valence bond solid (PVB) state (0.51≤J2≤0.62). The spin correlations decay exponentially as a function of distance in the PVB.
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Received: 19 March 2021
Revised: 09 June 2021
Accepted manuscript online: 21 June 2021
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PACS:
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03.65.-w
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(Quantum mechanics)
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Corresponding Authors:
Quan-lin Jie
E-mail: qljie@whu.edu.cn
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Cite this article:
Hao Geng(耿浩) and Quan-lin Jie(揭泉林) An optimized cluster density matrix embedding theory 2021 Chin. Phys. B 30 090305
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[1] Wang L and Sandvik A W 2018 Phys. Rev. Lett. 121 107202
[2] Zhang H and Lamas C A 2013 Phys. Rev. B 87 024415
[3] Chen Y, Xie Z Y and Yu J F 2018 Chin. Phys. B 27 080503
[4] Chen J, Liao H J, Xie H D, Han X J, Huang R Z, Cheng S, Wei Z C, Xie Z Y and Xiang T 2017 Chin. Phys. Lett. 34 050503
[5] Liu J L and Liang J Q 2019 Chin. Phys. B 28 110304
[6] Tan X D, Jin B Q and Gao W 2013 Chin. Phys. B 22 020308
[7] Chen S R, Xia Y J and Man Z X 2010 Chin. Phys. B 19 050304
[8] Zhu X and Tong P Q 2008 Chin. Phys. B 17 1623
[9] Bao A, Chen Y H and Zhang X Z 2013 Chin. Phys. B 22 110309
[10] Knizia G and Chan G K L 2012 Phys. Rev. Lett. 109 186404
[11] Bulik I W, Scuseria G E and Dukelsky J 2014 Phys. Rev. B 89 035140
[12] Chen Q, Booth G H, Sharma S, Knizia G and Chan G K L 2014 Phys. Rev. B 89 165134
[13] Fan Z and Jie Q L 2015 Phys. Rev. B 91 195118
[14] Qin J B, Jie Q L and Fan Z 2016 Computer Physics Communications 204 38
[15] Gunst K, Wouters S, Baerdemacker S D and Neck D V 2017 Phys. Rev. B 95 195127
[16] Gong S S, Zhu W, Sheng D N, Motrunich O I and Fisher M P A 2014 Phys. Rev. Lett. 113 027201
[17] Gelfand M P, Singh R R P and Huse D A 1989 Phys. Rev. B 40 10801
[18] Jiang H C, Yao H and Balents L 2012 Phys. Rev. B 86 024424
[19] Murg V, Verstraete F and Cirac J I 2009 Phys. Rev. B 79 195119
[20] Darradi R, Derzhko O, Zinke R, Schulenburg J, Krüger S E and Richter J 2008 Phys. Rev. B 78 214415
[21] Chandra P and Doucot B 1988 Phys. Rev. B 38 9335
[22] Read N and Sachdev S 1989 Phys. Rev. Lett. 62 1694
[23] Takano K, Kito Y, Ono Y and Sano K 2003 Phys. Rev. Lett. 91 197202
[24] Mezzacapo F 2012 Phys. Rev. B 86 045115
[25] Yu J F and Kao Y J 2012 Phys. Rev. B 85 094407
[26] Li T, Becca F, Hu W and Sorella S 2012 Phys. Rev. B 86 075111
[27] Wang L, Poilblanc D, Gu Z C, Wen X G and Verstraete F 2013 Phys. Rev. Lett. 111 037202
[28] Hu W J, Becca F, Parola A and Sorella S 2013 Phys. Rev. B 88 060402
[29] Doretto R L 2014 Phys. Rev. B 89 104415
[30] Henelius P and Sandvik A W 2000 Phys. Rev. B 62 1102
[31] Wang L, Gu Z C, Verstraete F and Wen X G 2016 Phys. Rev. B 94 075143
[32] Sirker J, Zheng.W, Sushkov O P and Oitmaa J 2006 Phys. Rev. B 73 184420
[33] Jongh M S L D C D, Leeuwen J M J V and Saarloos W V 2000 Phys. Rev. B 62 14844
[34] Sushkov O P, Oitmaa J and Zheng W 2001 Phys. Rev. B 63 104420
[35] Morita S, Kaneko R and Imada M 2015 J. Phys. Soc. Jpn. 84 024720 |
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