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Analytic two-body density-matrix spectrum of the Fermionic Tonks-Girardeau gas
Abel Rojo-Francàs, Joan Martorell, Francesc Sabater +1
The two-body density matrix (TBDM) of a quantum many-body system provides information about particle correlations, e.g., pairing. In this work, we derive the complete spectrum of t…
Bardeen-Cooper-Schrieffer State Representation and Pairing in the Fermionic Tonks-Girardeau Gas
Francesc Sabater, Abel Rojo-Francàs, Grigori E. Astrakharchik +1
We introduce an alternative expression for the ground state wave function of the fermionic Tonks-Girardeau gas. Our wave function is constructed based on the occupation numbers and…
Superfluid rings as quantum pendulums
Antonio Muñoz Mateo, Grigory E. Astrakharchik, Bruno Juliá-Díaz
A feasible experimental proposal to realize a non-dispersive quantum pendulum is presented. The proposed setup consists of an ultracold atomic cloud, featuring attractive interatom…