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16 April 2024 |
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Observation of New Superradiant Regimes in a Bose-Einstein Condensate | | Ivana Dimitrova
; William Lunden
; Jesse Amato-Grill
; Niklas Jepsen
; Yichao Yu
; Michael Messer
; Thomas Rigaldo
; Graciana Puentes
; David Weld
; Wolfgang Ketterle
; | | Date: |
7 Sep 2017 | | Abstract: | New phenomena of collective light scattering are observed when an elongated
Bose-Einstein condensate is pumped by two non-interfering beams
counterpropagating along its long axis. In the limit of small Rayleigh
scattering rates, the presence of a second pump beam suppresses superradiance,
whereas at large Rayleigh scattering rates it lowers the effective threshold
power for collective light scattering. In the latter regime, the quench
dynamics of the two-beam system are oscillatory, compared to monotonic in the
single-beam case. In addition, the dependence on power, detuning, and atom
number is explored. The observed features of the two-beam system qualitatively
agree with the recent prediction of a supersolid crystalline phase of light and
matter at large Rayleigh scattering rates [S. Ostermann, F. Piazza, and H.
Ritsch, Phys. Rev. X 6, 021026 (2016).] | | Source: | arXiv, 1709.2028 | | Services: | Forum | Review | PDF | Favorites | |
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