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Higgs mode in the quench dynamics of a confined ultracold Fermi gas in the BCS regime
S. Hannibal, P. Kettmann, M. D. Croitoru +3
The Higgs amplitude mode of the order parameter of an ultracold confined Fermi gas in the BCS regime after a quench of the coupling constant is analyzed theoretically. Characterist…
Atypical BCS-BEC crossover induced by quantum-size effects
A. A. Shanenko, M. D. Croitoru, A. V. Vagov +3
Quantum-size oscillations of the basic physical characteristics of a confined fermionic condensate are a well-known phenomenon. Its conventional understanding is based on the singl…
BCS-BEC crossover-like phenomena driven by quantum-size effects in quasi-one-dimensional fermionic condensates
A. A. Shanenko, M. D. Croitoru, A. V. Vagov +3
Quantum confinement is known to influence fermionic condensates, resulting in quantum-size oscillations of superfluid/superconducting properties. Here we show that the impact of qu…