From coherent collective excitation to Rydberg blockade on an atom chip

Julius de Hond, Rick van Bijnen, S.J.J.M.F. Kokkelmans, R.J.C. Spreeuw, H.B. van Linden van den Heuvell, N.J. van Druten

Research output: Contribution to journalArticleAcademicpeer-review

6 Citations (Scopus)
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Abstract

Using time-resolved measurements, we demonstrate coherent collective Rydberg excitation crossing over into Rydberg blockade in a dense and ultracold gas trapped at a distance of 100 μm from a room-temperature atom chip. We perform Ramsey-type measurements to characterize the coherence. The experimental data are in good agreement with numerical results from a master equation using a mean-field approximation and with results from a super-atom-based Hamiltonian. This represents significant progress in exploring a strongly interacting driven Rydberg gas on an atom chip.

Original languageEnglish
Article number062714
Number of pages6
JournalPhysical Review A
Volume98
Issue number6
DOIs
Publication statusPublished - 27 Dec 2018

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