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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Roton-induced trapping in strongly correlated Rydberg gases

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Rodrigues, Joao D. [1] ; Goncalves, Luis F. [2] ; Tercas, Hugo [1] ; Marcassa, Luis G. [3] ; Mendonca, Jose T. [1]
Total Authors: 5
[1] Univ Lisbon, Inst Super Tecn, Inst Plasmas & Fusao Nucl, P-1049001 Lisbon - Portugal
[2] Rydberg Technol LLC, Ann Arbor, MI 48103 - USA
[3] Univ Sao Paulo, Inst Fis Sao Carlos, Caixa Postal 369, BR-13560970 Sao Carlos, SP - Brazil
Total Affiliations: 3
Document type: Journal article
Source: Physical Review A; v. 98, n. 6 DEC 26 2018.
Web of Science Citations: 1

Atoms excited into high-lying Rydberg states and under strong dipole-dipole interactions exhibit phenomena associated with highly correlated and complex systems. We perform first-principles numerical simulations on the dynamics of such systems. The emergence of a roton minimum in the excitation spectrum, as expected in strongly correlated gases and accurately described by Feynman's theory of liquid helium, is shown to significantly inhibit particle transport, with a strong suppression of the diffusion coefficient, due to the emerging spatial order. We also demonstrate how the ability to temporally tune the interaction strength among Rydberg atoms can be used in order to overcome the effects of disorder-induced heating, allowing the study of unprecedented highly coupled regimes. (AU)

FAPESP's process: 11/22309-8 - Microstructures with cold Rydberg atoms
Grantee:Luís Felipe Barbosa Faria Gonçalves
Support Opportunities: Scholarships in Brazil - Doctorate
FAPESP's process: 13/02816-8 - Manipulation of atomic collisions in optical traps
Grantee:Luis Gustavo Marcassa
Support Opportunities: Research Projects - Thematic Grants