title: Performance of an irreversible quantum Carnot engine with spin 12.
abstract: The purpose of this paper is to investigate the effect of quantum properties of the working medium on the performance of an irreversible Carnot cycle with spin 12. The optimal relationship between the dimensionless power output P* versus the efficiency eta for the irreversible quantum Carnot engine with heat leakage and other irreversible losses is derived. Especially, the performances of the engine at low temperature limit and at high temperature limit are discussed.
authors.affiliation: Postgraduate School, Naval University of Engineering, Wuhan 430033, People's Republic of China.
authors.forename: Feng
authors.initials: F
authors.lastname: Wu
authors.forename: Lingen
authors.initials: L
authors.lastname: Chen
authors.forename: Shuang
authors.initials: S
authors.lastname: Wu
authors.forename: Fengrui
authors.initials: F
authors.lastname: Sun
authors.forename: Chih
authors.initials: C
authors.lastname: Wu