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arXiv · 2403.18283

PT-symmetric dynamical confinement: Fermi acceleration, quantum force and Berry phase

S. Rakhmanov·C. Trunk·M. Znojil·D. Matrasulov
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Abstract

We consider a quantum particle under the dynamical confinement caused by PT-symmetric box with a moving wall. The latter is described in terms of the time-dependent Schr\"{o}dinger equation obeying the time-dependent PT-symmetric boundary conditions. The class of the functions, describing time-dependence of the wall's position and keeping the system as PT-symmetric is found. Physically observable characteristics, such as average kinetic energy and the average quantum force are calculated as a function of time. Also, geometric phase is calculated for the harmonically oscillating wall regime. Experimental realization of the proposed model is discussed.

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S. Rakhmanov, C. Trunk, M. Znojil, D. Matrasulov. 2024-03-27. PT-symmetric dynamical confinement: Fermi acceleration, quantum force and Berry phase. https://doi.org/10.1103/physreva.109.053519

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