SciPost Submission Page
Quenching a Fermi superfluid across the BEC-BCS crossover
by Moritz Breyer, Daniel Eberz, Andreas Kell, Michael Köhl
Submission summary
| Authors (as registered SciPost users): | Michael Köhl |
| Submission information | |
|---|---|
| Preprint Link: | scipost_202407_00017v1 (pdf) |
| Date submitted: | 2024-07-10 10:11 |
| Submitted by: | Köhl, Michael |
| Submitted to: | SciPost Physics |
| Ontological classification | |
|---|---|
| Academic field: | Physics |
| Specialties: |
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| Approach: | Experimental |
Abstract
We study the response of a Fermi superfluid to a rapid change of the interaction strength. For a broad range of quench parameters, the order parameter exhibits damped oscillations, however, we also identify quench regimes in which these oscillations are absent. By comparing our data to a numerical model we find that the damping time constants are explainable by a dephasing in a local density approximation, however, the oscillation frequencies, while being comparable to the superconducting gap parameter, display in detail significant differences to the integrable BCS model.
Author indications on fulfilling journal expectations
- Provide a novel and synergetic link between different research areas.
- Open a new pathway in an existing or a new research direction, with clear potential for multi-pronged follow-up work
- Detail a groundbreaking theoretical/experimental/computational discovery
- Present a breakthrough on a previously-identified and long-standing research stumbling block
Current status:
In refereeing