Bardeen-Cooper-Schrieffer state representation and pairing detection in the fermionic Tonks-Girardeau gas

We demonstrate that the ground state of the fermionic Tonks-Girardeau gas is a number-conserving Bardeen-Cooper-Schrieffer (BCS) state. This offers a compelling new perspective on describing the ground-state wave function of the fermionic Tonks-Girardeau gas, enabling a complete description in secon...

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Bibliographic Details
Main Authors: Francesc Sabater, Abel Rojo-Francás, Grigori E. Astrakharchik, Bruno Juliá-Díaz
Format: Article
Language:English
Published: American Physical Society 2025-07-01
Series:Physical Review Research
Online Access:http://doi.org/10.1103/cqkw-bf3v
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