Finite temperature properties of a supersolid: a RPA approach
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Stoffel, Andre; Gulacsi, Miklos
Description
We study in random-phase approximation the newly discovered supersolid phase of 4He and present in detail its finite temperature properties. 4He is described within a hard-core quantum lattice gas model, with nearest and next-nearest neighbour interactions taken into account. We rigorously calculate all pair correlation functions in a cumulant decoupling scheme. Our results support the importance of the vacancies in the supersolid phase. We show that in a supersolid the net vacancy density...[Show more]
Collections | ANU Research Publications |
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Date published: | 2009 |
Type: | Journal article |
URI: | http://hdl.handle.net/1885/31626 |
Source: | European Physical Journal B |
DOI: | 10.1140/epjb/e2009-00018-6 |
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01_Stoffel_Finite_temperature_properties_2009.pdf | 379.07 kB | Adobe PDF | Request a copy |
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