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

doi:10.1103/PhysRevA.98.062714

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

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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 language	English
Article number	062714
Number of pages	6
Journal	Physical Review A
Volume	98
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevA.98.062714
Publication status	Published - 27 Dec 2018

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10.1103/PhysRevA.98.062714

arXiv 1810.04532v1Final author version , 446 KB
published versionFinal published version, 554 KB

https://arxiv.org/abs/1810.04532v1

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title = "From coherent collective excitation to Rydberg blockade on an atom chip",

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.",

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AU - de Hond, Julius

AU - van Bijnen, Rick

AU - Kokkelmans, S.J.J.M.F.

AU - Spreeuw, R.J.C.

AU - van Linden van den Heuvell, H.B.

AU - van Druten, N.J.

N1 - 6 pages, 3 figures, plus 2 pages of supplemental material

PY - 2018/12/27

Y1 - 2018/12/27

N2 - 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.

AB - 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.

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SN - 2469-9926

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From coherent collective excitation to Rydberg blockade on an atom chip

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