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arXiv · 2203.11019

Quantum boomerang effect in systems without time reversal symmetry

Jakub Janarek·Benoît Grémaud·Jakub Zakrzewski·Dominique Delande
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Abstract

In an Anderson localized system, a quantum particle with a nonzero initial velocity returns, on average, to its origin. This recently discovered behavior is known as the quantum boomerang effect. Time reversal invariance was initially thought to be a necessary condition for the existence of this phenomenon. We theoretically analyze the impact of the symmetry breaking on the phenomenon using a one-dimensional system with a spin-orbit coupling and show that the time reversal invariance is not necessary for the boomerang effect to occur.

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Jakub Janarek, Benoît Grémaud, Jakub Zakrzewski, Dominique Delande. 2022-03-21. Quantum boomerang effect in systems without time reversal symmetry. https://doi.org/10.1103/physrevb.105.l180202

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