High-energy Bragg scattering measurements of a dipolar supersolid
- URL: http://arxiv.org/abs/2005.02213v2
- Date: Fri, 8 May 2020 07:08:43 GMT
- Title: High-energy Bragg scattering measurements of a dipolar supersolid
- Authors: D. Petter, A. Patscheider, G. Natale, M. J. Mark, M. A. Baranov, R. v.
Bijnen, S. M. Roccuzzo, A. Recati, B. Blakie, D. Baillie, L. Chomaz, and F.
Ferlaino
- Abstract summary: Using Bragg spectroscopy, we study the scattering response of the system to a high-energy probe.
We experimentally observe a continuous reduction of the response when tuning the contact interaction from an ordinary Bose-Einstein condensate to a supersolid state.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: We present an experimental and theoretical study of the high-energy
excitation spectra of a dipolar supersolid. Using Bragg spectroscopy, we study
the scattering response of the system to a high-energy probe, enabling
measurements of the dynamic structure factor. We experimentally observe a
continuous reduction of the response when tuning the contact interaction from
an ordinary Bose-Einstein condensate to a supersolid state. Yet the observed
reduction is faster than the one theoretically predicted by the
Bogoliubov-de-Gennes theory. Based on an intuitive semi-analytic model and
real-time simulations, we primarily attribute such a discrepancy to the
out-of-equilibrium phase dynamics, which although not affecting the system
global coherence, reduces its response.
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