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Quantum backflow for two identical particles

delete2025-02-18
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M
Maximilien Barbier *
A
Arseni Goussev
DOI:10.1088/1367-2630/adb77edelete
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Abstract

Abstract

En 中文
Quantum mechanics introduces the possibility for particles to move in a direction opposite to their momentum-a counter-intuitive and classically impossible phenomenon known as quantum backflow. The magnitude of this effect is relatively small, making its experimental observation, which has yet to be achieved, particularly challenging. Here, we investigate the influence of quantum statistics on the maximal backflow attainable for two identical particles confined to a ring. Notably, we demonstrate that the fermionic statistics significantly impedes quantum backflow compared to the bosonic statistics. Our findings suggest that any future experimental realization of quantum backflow should prioritize systems involving bosons rather than fermions.
Keywords:
quantum backflow
identical particles
quantum statistics
periodic boundary conditions

Journal

New Journal of Physics cover
New Journal of Physics
IF:
2.8
Papers:
580
Citations:
3.5W

Organization

U
Univ West Scotland
Scholars:
68
Papers: 40
Citations: 5
U
Univ Geneva
Scholars:
960
Papers: 502
Citations: 180
Cited Papers

Cited Papers

No cited papers available