Abstract
The indistinguishability of particles is a crucial factor destabilizing crystalline order in Bose systems. We describe this effect in terms of damped quasiparticle modes and in the dual language of Feynman paths, and illustrate it by first-principles simulations of dipolar bosons and bulk condensed . The first major implication is that, contrary to conventional wisdom, zero-point motion alone cannot prevent crystallization at near zero pressure. Second, Bose statistics leads to quantum jamming at finite temperature, dramatically enhancing the metastability of superfluid glasses. Only studies of indistinguishable particles can reliably address these issues.
- Received 27 March 2012
DOI:https://doi.org/10.1103/PhysRevLett.109.025302
© 2012 American Physical Society
Viewpoint
The Twisted Paths of Bosons
Published 9 July 2012
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