Superfluidity and quantum localization of para-H2 clusters and ortho-D2 clusters

Cheng Xin-Lu; Zhang Hong; Feng Cheng-Yi

doi:10.7498/aps.60.013602

Abstract

In this paper, Path-integral Monte Carlo calculations have been performed to study structure and superfluid behavior of para-H2 clusters(number of molecules N≤40).Energy difference and superfluid fractions at T=0.4 K and 1.6 K were compared to explore quantum melting of para-H2 clusters. We discussed the interplay between quantum localization and quantum melting of para-H2 clusters, and the differences between quantum localization and superfluidity of para-H2 and ortho-D2 clusters at T = 0.4 K.

Keywords:

Authors and contacts

(1)Institute of Atomic and Molecular Physics,Sichuan Univercity,Chengdu 610065,China; (2)School of Physics Science and Tecnology, Sichuan Univercity,Chengdu 610065,China

References

[1]	Sindzingre P, Ceperley D M, Klein M L 1991 Phys. Rev.Lett. 67 1871
[2]	Grebenev S, Sartakov B, Toennies J P, Vilesov A F 2000 Science 289 1532
[3]	Khairallah S A, Sevryuk M B, Ceperley D M,ToenniesJ P 2007 Phys. Rev. Lett. 98 183401
[4]	Mezzacapo F, Boninsegni M 2007 Phys. Rev. A 76 021201
[5]	Jeongmin Choo, Yongkyung Kwon 2008 J. Low Temp. Phys. 150 358
[6]	Sindzingre P, Klein M L, Ceperley D M 1989 Phys. Rev. Lett. 63 1601
[7]	Boninsegni M, Ceperley D M 1996 J. Low Temp. Phys. 104 339
[8]	Knuth E L, Schünemann F, Toennies J P 1995 J. Chem. Phys. 102 6258
[9]	Yu X C, Mo Y 2004 Acta Phy. Sin.53 4075(in Chinese)[余学才、莫影 2004物理学报 53 4075]
[10]	Buch V 1994 J. Chem. Phys. 100 7610
[11]	Yu X C, Y e Y T, Cheng L 2006 Acta Phy.Sin.55 551 (in Chinese)[余学才、叶玉堂、程琳 2006 物理学报 55 551]
[12]	Ceperley D M 1995 Rev. Mod. Phys. 67 279
[13]	Draeger E W, Ceperley D M 2000 Phys. Rev. B 61 12094
[14]	Ceperley D M, Pollock E L 1987 Can. J. Phys. 65 1416
[15]	Silvera I, Goldman V V 1978 J. Chem. Phys. 69 4209
[16]	Ceperley D M 2003 The Monte Carlo Method in the Physical Sciences, ed. J. E. Gubernatis, AIP Conference Proceedings, Vol 690
[17]	Kwon Y, Whaley K B 2002 Phys. Rev. Lett. 89 273401
[18]	Guardiolal 2008 Central European Journal of Physics 6 33
[19]	Mezzacapo F, Boninsegni M 2008 Phys. Rev. Lett. 100 145301
[20]	Fabio Mezzacapol, Massimo Boninsegni 2009 J. Phys.: Condens Matter 21 164205

Cited By

[1]	Sindzingre P, Ceperley D M, Klein M L 1991 Phys. Rev.Lett. 67 1871
[2]	Grebenev S, Sartakov B, Toennies J P, Vilesov A F 2000 Science 289 1532
[3]	Khairallah S A, Sevryuk M B, Ceperley D M,ToenniesJ P 2007 Phys. Rev. Lett. 98 183401
[4]	Mezzacapo F, Boninsegni M 2007 Phys. Rev. A 76 021201
[5]	Jeongmin Choo, Yongkyung Kwon 2008 J. Low Temp. Phys. 150 358
[6]	Sindzingre P, Klein M L, Ceperley D M 1989 Phys. Rev. Lett. 63 1601
[7]	Boninsegni M, Ceperley D M 1996 J. Low Temp. Phys. 104 339
[8]	Knuth E L, Schünemann F, Toennies J P 1995 J. Chem. Phys. 102 6258
[9]	Yu X C, Mo Y 2004 Acta Phy. Sin.53 4075(in Chinese)[余学才、莫影 2004物理学报 53 4075]
[10]	Buch V 1994 J. Chem. Phys. 100 7610
[11]	Yu X C, Y e Y T, Cheng L 2006 Acta Phy.Sin.55 551 (in Chinese)[余学才、叶玉堂、程琳 2006 物理学报 55 551]
[12]	Ceperley D M 1995 Rev. Mod. Phys. 67 279
[13]	Draeger E W, Ceperley D M 2000 Phys. Rev. B 61 12094
[14]	Ceperley D M, Pollock E L 1987 Can. J. Phys. 65 1416
[15]	Silvera I, Goldman V V 1978 J. Chem. Phys. 69 4209
[16]	Ceperley D M 2003 The Monte Carlo Method in the Physical Sciences, ed. J. E. Gubernatis, AIP Conference Proceedings, Vol 690
[17]	Kwon Y, Whaley K B 2002 Phys. Rev. Lett. 89 273401
[18]	Guardiolal 2008 Central European Journal of Physics 6 33
[19]	Mezzacapo F, Boninsegni M 2008 Phys. Rev. Lett. 100 145301
[20]	Fabio Mezzacapol, Massimo Boninsegni 2009 J. Phys.: Condens Matter 21 164205

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