Nonlinear inverse spin galvanic effect in anisotropic disorder-free systems

  • Iryna Miatka
  • Marco BarbieriEmail author
  • Roberto Raimondi
Regular Article


Spin transport phenomena in solid materials suffer limitations from spin relaxation associated to disorder or lack of translational invariance. Ultracold atoms, free of that disorder, can provide a platform to observe phenomena beyond the usual two-dimensional electron gas. By generalizing the approach used for isotropic two-dimensional electron gases, we theoretically investigate the inverse spin galvanic effect in the two-level atomic system in the presence of anisotropic Rashba-Dresselhaus spin-orbit couplings (SOC) and external magnetic field. We show that the combination of the SOC results in an asymmetric case: the total spin polarization considered for a small momentum has a longer spin state than in a two-dimensional electron gas when the SOC field prevails over the external electric field. Our results can be relevant for advancing experimental and theoretical investigations in spin dynamics as a basic approach for studying spin state control.

Graphical abstract


Cold Matter and Quantum Gas 


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© EDP Sciences / Società Italiana di Fisica / Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Dipartimento di Matematica e Fisica, Università degli Studi Roma TreRomeItaly
  2. 2.Dipartimento di Scienze, Università degli Studi Roma TreRomeItaly

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