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arXiv · 2011.07053

Spontaneous atomic crystallization via diffractive dephasing in optical cavities

Adrián Costa-Boquete·Giuseppe Baio·Gordon R. M. Robb·Gian-Luca Oppo·Paul Griffin·Thorsten Ackemann
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Abstract

The design of an experiment on the spontaneous crystallization of a laser-cooled, but thermal atomic cloud into a hexagonally structured phase is discussed. Atomic interaction is mediated by the dipole potential of an optical lattice formed spontaneously in a multi-mode degenerate cavity from single-mode longitudinal pumping. The length scale of the structure is given by the diffractive dephasing between the spontaneous sidebands and the on-axis pump. A linear stability indicates that the transition can be observed in a cavity of moderate finesse compatible with having the cavity mirrors outside the vacuum cell. A new anti-reflected cell has been assembled for this purpose.

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Adrián Costa-Boquete, Giuseppe Baio, Gordon R. M. Robb, Gian-Luca Oppo, Paul Griffin, Thorsten Ackemann. 2020-11-13. Spontaneous atomic crystallization via diffractive dephasing in optical cavities. https://doi.org/10.1088/1742-6596/1919/1/012014

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