One-dimensional spin-1/2 fermionic gases with two-body losses: Weak dissipation and spin conservation
Authors: Rosso Lorenzo; Rossini Davide; Biella Alberto; Mazza Leonardo
Autors Affiliation: LPTMS, University Paris-Saclay, CNRS, Orsay, 91405, France; Dipartimento di Fisica, Universita di Pisa, Largo Pontecorvo 3, Pisa, 56127, Italy; INFN, Sezione di Pisa, Largo Pontecorvo 3, Pisa, 56127, Italy; INO-CNR BEC Center, Dipartimento di Fisica, Universita di Trento, Povo, 38123, Italy
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 a fully symmetric spin wave function, 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 with the modelization and understanding of recent experiments with alkaline-earth(-like) gases like ytterbium and fermionic molecules.
Journal/Review: PHYSICAL REVIEW A
Volume: 104 (5) Pages from: 053305-1 to: 053305-12
KeyWords: PYTHON FRAMEWORK; QUANTUM STATES; DECOHERENCE; DYNAMICS; DRIVEN; QUTIPDOI: 10.1103/PhysRevA.104.053305