3 papers
quant-ph2009
Optimal Performance of Quantum Refrigerators
Tova Feldmann, Ronnie Kosloff
A reciprocating quantum refrigerator is studied with the purpose of determining the limitations of cooling to absolute zero. We find that if the energy spectrum of the working medi…
quant-ph2005
Quantum Lubrication: Suppression of Friction in a First Principle Four Stroke Heat Engine
Tova Feldmann, Ronnie Kosloff
A quantum model of a heat engine resembling the Otto cycle is employed to explore strategies to suppress frictional losses. These losses are caused by the inability of the engine's…
quant-ph2003
The Quantum Four Stroke Heat Engine: Thermodynamic Observables in a Model with Intrinsic Friction
Tova Feldmann, Ronnie Kosloff
The fundamentals of a quantum heat engine are derived from first principles. The study is based on the equation of motion of a minimum set of operators which is then used to define…