Quantum boomerang effect in systems without time-reversal symmetry
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. We explain this behavior giving sufficient symmetry conditions for the boomerang effect to occur when time-reversal symmetry is broken.
- Publication:
-
Physical Review B
- Pub Date:
- May 2022
- DOI:
- 10.1103/PhysRevB.105.L180202
- arXiv:
- arXiv:2203.11019
- Bibcode:
- 2022PhRvB.105r0202J
- Keywords:
-
- Condensed Matter - Disordered Systems and Neural Networks;
- Condensed Matter - Quantum Gases;
- Quantum Physics
- E-Print:
- author accepted manuscript in PRB Letters