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Condensed Matter > Quantum Gases
Title: Dynamics for the Haldane phase in the Bilinear-Biquadratic Model
(Submitted on 21 Dec 2020 (v1), last revised 18 Feb 2021 (this version, v2))
Abstract: The BBM is a promising candidate to study spin-one systems and to design quantum simulators based on its underlying Hamiltonian. The variety of different phases contains amongst other valuable and exotic phases the Haldane phase. We study the Kibble-Zurek physics of linear quenches into the Haldane phase. We outline ideal quench protocols to minimize defects in the final state while exploiting different linear quench protocols via the uniaxial or interaction term. Furthermore, we look at the fate of the string order when quenching from a topologically non-trivial phase to a trivial phase. Our studies show this depends significantly on the path chosen for quenching; for example, we discover quenches from \Neel{} to Haldane phase which reach a string order greater than their ground state counterparts for the initial or final state at intermediate quench times.
Submission history
From: Arya Dhar [view email][v1] Mon, 21 Dec 2020 16:48:09 GMT (2585kb,D)
[v2] Thu, 18 Feb 2021 10:04:41 GMT (2599kb,D)
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