One-dimensional spin-1/2 fermionic gases with two-body losses: weak dissipation and spin conservation

• URL: http://arxiv.org/abs/2104.07929v2
• Date: Tue, 14 Sep 2021 14:16:21 GMT
• Title: One-dimensional spin-1/2 fermionic gases with two-body losses: weak dissipation and spin conservation
• Authors: Lorenzo Rosso, Davide Rossini, Alberto Biella, Leonardo Mazza
• Abstract summary: We present a theoretical analysis of the dynamics of a one-dimensional spin-1/2 fermionic gas subject to weak two-body losses. Our approach highlights the crucial role played by spin conservation in the determination of the full time evolution.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We present a theoretical analysis of the dynamics of a one-dimensional spin-1/2 fermionic gas subject to weak two-body losses. Our approach highlights the crucial role played by spin conservation in the determination of the full time evolution. We focus in particular on the dynamics of a gas that is initially prepared in a Dicke state with fully-symmetric spin wavefunction, in a band insulator, or in a Mott insulator. In the latter case, we investigate the emergence of a steady symmetry-resolved purification of the gas. Our results could help the modelisation and understanding of recent experiments with alkaline-earth(-like) gases like ytterbium or fermionic molecules.

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