Spontaneous formation of one-dimensional Rydberg crystals in an ultracold gas

T.H.P. van der Weerden, S.J.J.M.F. Kokkelmans, E.J.D. Vredenbregt

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Abstract

Rydberg atoms have experimentally interestingproperties such as strong long-range Van der Waals interactions and the dipole blockade effect. In optical lattices the blockade effect ensures that only one Rydberg excitation per site is allowed, effectively creating a Rydberg crystal. We theoretically show that it is also possible for a one-dimensional Rydberg crystal to spontaneously form in a random ensemble of atoms, e.g. a magneto-optical trap. This is done using an
existing Monte Carlo model [1] to simulate the excitation dynamics inside the intersection of two lasers for a two-step excitation scheme. With a blue-detuned laser for the upper transition, the first Rydberg excitation will occur after a relatively long time. That first Rydberg atom will then seed further Rydberg excitations, as the blockade effect shifts atoms at a certain distance into
resonance. If two dimensions of the laser intersection are smaller than the blockade radius, a one-dimensional Rydberg crystal will form.
Original languageEnglish
Pages64-64
Number of pages1
Publication statusPublished - 11 Oct 2016
Event40th Annual Meeting of the section Atomic Molecular and Optical Physics - Conference Center De Werelt , Lunteren, Netherlands
Duration: 11 Oct 201612 Oct 2016
Conference number: 40

Conference

Conference40th Annual Meeting of the section Atomic Molecular and Optical Physics
CountryNetherlands
CityLunteren
Period11/10/1612/10/16

Bibliographical note

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    van der Weerden, T. H. P., Kokkelmans, S. J. J. M. F., & Vredenbregt, E. J. D. (2016). Spontaneous formation of one-dimensional Rydberg crystals in an ultracold gas. 64-64. Poster session presented at 40th Annual Meeting of the section Atomic Molecular and Optical Physics, Lunteren, Netherlands.