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Quantum melting of two-component Rydberg crystals

Lan, Zhihao; Li, Weibin; Lesanovsky, Igor

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Zhihao Lan

Associate Professor


We investigate the quantum melting of one-dimensional crystals that are realized in an atomic lattice in which ground state atoms are laser excited to two Rydberg states. We focus on a regime where both, intra- and interstate density-density interactions as well as coherent exchange interactions contribute. We determine stable crystalline phases in the classical limit and explore their melting under quantum fluctuations introduced by the excitation laser as well as two-body exchange. We find that within a specific parameter range quantum fluctuations introduced by the laser can give rise to a devil’s staircase structure which one might associate with transitions in the classical limit. The melting through exchange interactions is shown to also proceed in a steplike fashion, in the case of small crystals, due to the proliferation of Rydberg spin waves.

Journal Article Type Article
Acceptance Date Oct 25, 2016
Publication Date Nov 11, 2016
Deposit Date Nov 14, 2016
Publicly Available Date Nov 14, 2016
Journal Physical Review A
Print ISSN 2469-9926
Electronic ISSN 2469-9934
Publisher American Physical Society
Peer Reviewed Peer Reviewed
Volume 94
Issue 5
Article Number 051603
Public URL
Publisher URL
Additional Information ©2016 American Physical Society


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