Dynamics of a quenched spin-1 antiferromagnetic condensate in a harmonic trap

L. M. Symes, D. Baillie, and P. B. Blakie
Phys. Rev. A 98, 063618 – Published 14 December 2018

Abstract

In this paper we consider a recent experiment [Phys. Rev. A 95, 053638 (2017)] in which an antiferromagnetic spin-1 condensate of Na23 atoms was quenched from the easy-axis polar phase into the easy-plane polar phase. We simulate the phase-transition dynamics by using a classical field method with noisy initial conditions and find good agreement with the experimental observations. We analyze the late-time dynamics in terms of phase ordering by using the nematic order parameter that we have developed in earlier work [Phys. Rev. A 96, 013602 (2017)]. We show that these experiments are able to explore the early stages of universal phase ordering where the domains grow diffusively.

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  • Received 4 October 2018

DOI:https://doi.org/10.1103/PhysRevA.98.063618

©2018 American Physical Society

Physics Subject Headings (PhySH)

Atomic, Molecular & Optical

Authors & Affiliations

L. M. Symes, D. Baillie, and P. B. Blakie

  • The Dodd-Walls Centre for Photonic and Quantum Technologies, University of Otago, Dunedin 9016, New Zealand and Department of Physics, University of Otago, Dunedin 9016, New Zealand

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Issue

Vol. 98, Iss. 6 — December 2018

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