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arXiv · 1512.07946

Complete population inversion of Bose particles by an adiabatic cycle

Atushi Tanaka·Taksu Cheon
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Abstract

We show that an adiabatic cycle excites Bose particles confined in a one-dimensional box. During the adiabatic cycle, a wall described by a $δ$-shaped potential is applied and its strength and position are slowly varied. When the system is initially prepared in the ground state, namely, in the zero-temperature equilibrium state, the adiabatic cycle brings all bosons into the first excited one-particle state, leaving the system in a nonequilibrium state. The absorbed energy during the cycle is proportional to the number of bosons.

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Atushi Tanaka, Taksu Cheon. 2016-03-16. Complete population inversion of Bose particles by an adiabatic cycle. https://doi.org/10.1088/1367-2630%2F18%2F4%2F045023

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