Ring exchanges and the supersolid phase of 4He.
Phys Rev Lett
; 93(15): 155303, 2004 Oct 08.
Article
in En
| MEDLINE
| ID: mdl-15524899
ABSTRACT
Using path integral Monte Carlo simulations we calculate exchange frequencies in bulk hcp 4He as atoms undergo ring exchange. We fit the frequencies to a lattice model and examine whether such atoms could become a supersolid, that is, have a nonclassical rotational inertia. We find that the scaling with respect to the number of exchanging atoms is such that superfluid behavior will not be observed in a perfect 4He crystal.
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Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
Phys Rev Lett
Year:
2004
Document type:
Article
Affiliation country:
United States