Thermally activated local collapse of a flattened dipolar condensate

E. B. Linscott; P. B. Blakie

doi:10.1103/physreva.90.053605

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arXiv · 1409.1766

Thermally activated local collapse of a flattened dipolar condensate

E. B. Linscott·P. B. Blakie

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Abstract

We consider the metastable dynamics of a flattened dipolar condensate. We develop an analytic model that quantifies the energy barrier to the system undergoing local collapse to form a density spike. We also develop a stochastic Gross-Pitaevskii equation (SGPE) theory for a flatted dipolar condensate, which we use to perform finite temperature simulations verifying the local collapse scenario. We predict that local collapses play a significant role in the regime where rotons are predicted to exist, and will be an important consideration for experiments looking to detect these excitations.

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E. B. Linscott, P. B. Blakie. 2014-09-05. Thermally activated local collapse of a flattened dipolar condensate. https://doi.org/10.1103/physreva.90.053605

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