The momentum distribution of normal and superfluid liquid 4He
Keyword(s):
Path-integral methods can be employed to calculate properties of boson systems at any temperature. We have performed a number of simulations of liquid helium and have calculated the momentum distribution as a function of temperature. We find that liquid helium has a condensate below 2 K but not above. The momentum distribution is found to be non-Gaussian even in normal liquid helium. We have also calculated the difference in the momentum distribution between a boson system and a distinguishable particle system.
2003 ◽
Vol 119
(23)
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pp. 12119-12128
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2010 ◽
Vol 5
(4)
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pp. 511-521
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2002 ◽
Vol 303
(1-2)
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pp. 91-104
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2018 ◽
Vol 433
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pp. 314-333
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2019 ◽
Vol 29
(6)
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pp. 1297-1315
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2006 ◽
Vol 21
(17)
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pp. 3525-3563
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2002 ◽
Vol 159
(7-8)
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pp. 1637-1679
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