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arXiv · 1801.01818

Towards a quantum time mirror for nonrelativistic wave packets

Phillipp Reck·Cosimo Gorini·Arseni Goussev·Viktor Krueckl·Mathias Fink·Klaus Richter
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Abstract

We propose a method -- a quantum time mirror (QTM) -- for simulating a partial time-reversal of the free-space motion of a nonrelativistic quantum wave packet. The method is based on a short-time spatially-homogeneous perturbation to the wave packet dynamics, achieved by adding a nonlinear time-dependent term to the underlying Schr\"odinger equation. Numerical calculations, supporting our analytical considerations, demonstrate the effectiveness of the proposed QTM for generating a time-reversed echo image of initially localized matter-wave packets in one and two spatial dimensions. We also discuss possible experimental realizations of the proposed QTM.

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Phillipp Reck, Cosimo Gorini, Arseni Goussev, Viktor Krueckl, Mathias Fink, Klaus Richter. 2018-01-03. Towards a quantum time mirror for nonrelativistic wave packets. https://doi.org/10.1088/1367-2630%2Faaae98

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