Abstract

We experimentally demonstrate vibration phase reversal transition in a discrete time-translational symmetry broken cold atomic system by the application of a pulsed bias-field opposite to the existing phase of the symmetry broken vibrational state. The reversal transition depends on the strength $h_p$ and the duration $\mathrm{\Delta }t$ of the applied pulse. Consequently, we obtain a $h_p-\mathrm{\Delta }t$ phase boundary with a divergent relaxation time $\tau$ due to the critical slowdown behavior. Interestingly, the dependence of the dynamic phase boundary and relaxation time on the noise-induced switching rate implies that the system is out of equilibrium, though not so in the Ising model of a spin system.

© 2019 Optical Society of America

Ultracold bosonic atom–molecule conversion dynamics with a linearly chirped Gaussian pulse

Fu-Quan Dou, Li-Na Hu, Xiu-Niao Zhao, Sheng-Chang Li, and Jian-An Sun
J. Opt. Soc. Am. B 36(10) 2629-2635 (2019)

Experiment on parity-time-symmetry phase transition in non-Hermitian metasurfaces

Jingwei Xu, Shoujian Ouyang, Laibin Luo, Yun Shen, Liner Zou, Zhiyong Tan, and Xiaohua Deng
J. Opt. Soc. Am. B 39(7) 1847-1852 (2022)

Time reversal in an optical lattice

Fernando M. Cucchietti
J. Opt. Soc. Am. B 27(6) A30-A35 (2010)

Magnetic phase diagram of light-mediated spin structuring in cold atoms

G. Labeyrie, I. Krešić, G. R. M. Robb, G.-L. Oppo, R. Kaiser, and T. Ackemann
Optica 5(10) 1322-1328 (2018)

Periodic modulation effects on phase transitions in an ultracold atom-molecule system

Sheng-Chang Li and Li-Chen Zhao
J. Opt. Soc. Am. B 31(3) 642-647 (2014)