Floquet Spinor Bose Gases

Abstract

We introduce a Floquet spinor Bose-Einstein condensate induced by a periodically driven quadratic Zeeman coupling whose frequency is larger than any other energy scales. By examining a spin-1 system available in ultracold atomic gases, we demonstrate that such an external driving field has great effect on the condensate through emergence of a unique spin-exchange interaction. We uncover that the ferromagnetic condensate has several unconventional stationary states and thus exhibits rich continuous phase transitions. On the other hand, the antiferromagnetic condensate is found to possess a nontrivial metastable region, which supports unusual elementary excitations and hysteresis phenomena.

arXiv comment6 pages, 5 figures

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Cited by in corpus (6)

• Quantum phases in spin-orbit-coupled Floquet spinor Bose gases
• Solvable model of a generic driven mixture of trapped Bose-Einstein condensates and properties of a many-boson Floquet state at the limit of an infinite number of particles
• Engineering Dynamical Phase Diagrams with Driven Lattices in Spinor Gases
• Dynamic renormalization group theory for open Floquet systems
• Faraday patterns, spin textures, spin-spin correlations and competing instabilities in a driven spin-1 antiferromagnetic Bose-Einstein condensate
• Phase diagrams of spin-2 Floquet spinor Bose-Einstein condensates