najoNanosystems: Physics, Chemistry, MathematicsНаносистемы: физика, химия, математика2220-80542305-7971Университет ИТМО10.17586/2220-8054-2017-8-1-121-126najo-797Research ArticlePHYSICSФИЗИКАAdiabatic cycles in quantum systems with contact interactionsTanakaA.

Hachioji, Tokyo 192-0397

tanaka-atushi@tmu.ac.jpCheonT.

Hachioji, Tokyo 192-0397

taksu.cheon@kochi-tech.ac.jpDepartment of Physics, Tokyo Metropolitan UniversityJapan20171308202581121126Copyright © Tanaka A., Cheon T., 20252025Tanaka A., Cheon T.Tanaka A., Cheon T.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://nanojournal.ifmo.ru/jour/article/view/797

An adiabatic cycle involving the-function potential is shown to excite Bose particles confined in a one-dimensional box. We consider a cycle, during which a wall described by a potential is applied and its strength and position are slowly varied. When the system is initially prepared in the equilibrium ground 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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The authors declare that there are no conflicts of interest present.