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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.)

Emergent limit cycles and time crystal dynamics in an atom-cavity system

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Author(s):
Kessler, Hans [1] ; Cosme, Jayson G. [2, 3, 4] ; Hemmerling, Michal [1] ; Mathey, Ludwig [2, 3, 4] ; Hemmerich, Andreas [2, 3, 4, 5]
Total Authors: 5
Affiliation:
[1] Univ Sao Paulo, Inst Fis Sao Carlos, BR-13560970 Sao Carlos, SP - Brazil
[2] Hamburg Ctr Ultrafast Imaging, Luruper Chaussee 149, D-22761 Hamburg - Germany
[3] Univ Hamburg, Zentrum Opt Quantentechnol, D-22761 Hamburg - Germany
[4] Univ Hamburg, Inst Laser Phys, D-22761 Hamburg - Germany
[5] Shanghai Jiao Tong Univ, Wilczek Quantum Ctr, Sch Phys & Astron, Shanghai 200240 - Peoples R China
Total Affiliations: 5
Document type: Journal article
Source: Physical Review A; v. 99, n. 5 MAY 9 2019.
Web of Science Citations: 2
Abstract

We propose an experimental realization of a time crystal using an atomic Bose-Einstein condensate in a high finesse optical cavity pumped with laser light detuned to the blue side of the relevant atomic resonance. By mapping out the dynamical phase diagram, we identify regions in parameter space showing stable limit cycle dynamics. Since the model describing the system is time independent, the emergence of a limit cycle phase indicates the breaking of continuous time translation symmetry. Employing a semiclassical analysis to demonstrate the robustness of the limit cycles against perturbations and quantum fluctuations, we establish the emergence of a time crystal. (AU)

FAPESP's process: 16/16598-0 - A dual sensor for metrology and gravimetry
Grantee:Hans Georg Ernst Kessler
Support type: Scholarships in Brazil - Post-Doctorate