Quantum backflow in a ring

Research output: Contribution to journalArticlepeer-review

51 Downloads (Pure)

Abstract

Free motion of a quantum particle with the wave function entirely comprised of plane waves with non-negative momenta may be accompanied by negative probability current, an effect called quantum backflow. The effect is weak and fragile and has not yet been observed experimentally. Here we show that quantum backflow becomes significantly more pronounced and more amenable to experimental observation if, instead of letting the particle move along a straight line, one forces it to move in a circular ring.
Original languageEnglish
Article number022217
Pages (from-to)1-6
Number of pages6
JournalPhysical Review A
Volume103
Issue number2
DOIs
Publication statusPublished - 22 Feb 2021

Fingerprint

Dive into the research topics of 'Quantum backflow in a ring'. Together they form a unique fingerprint.

Cite this