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Discrete four-stroke quantum heat engine exploring the origin of friction
Ronnie Kosloff1, Tova Feldmann
1Department of Physical Chemistry, The Hebrew University, Jerusalem 91904, Israel.
Abstract:
The optimal power performance of a first-principle quantum heat engine model shows friction-like phenomena when the internal fluid Hamiltonian does not commute with the external control field. The model is based on interacting two-level systems where the external magnetic field serves as a control variable.