# False-vacuum decay in an ultracold spin-1 Bose gas

@article{Billam2022FalsevacuumDI, title={False-vacuum decay in an ultracold spin-1 Bose gas}, author={Thomas P. Billam and Kate Brown and Ian G. Moss}, journal={Physical Review A}, year={2022} }

We propose an ultracold atom analogue of false vacuum decay using all three states of a spin-1 Bose gas. We consider a one-dimensional system with both radio frequency and optical Raman coupling between internal states. An advantage of our proposal is the lack of a time-modulated coupling, which can lead to instabilities. Within the elaborate phase structure of the system we identify an effective Klein-Gordon field and use GrossPitaevskii simulations within the truncated Wigner approximation to…

## One Citation

### Fate of False Vacuum in Non-perturbative Regimes

- Physics
- 2022

A formalism to describe the false-vacuum decay in non-perturbative regimes was proposed re-cently. Here, we extend it to the presence of Einstein gravity and calculate the corresponding eﬀective…

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