title: Cooling classical particles with a microcanonical Szilard engine.
abstract: The possibility of extracting energy from a system in a cyclic process is discussed. We present an explicit example where a system, initially prepared in a microcanonical state, is able to perform such an operation. The example is similar to the Szilard engine, but the microcanonical initial condition allows one to design a protocol where measurement is not necessary.
authors.affiliation: Departamento de Física Atómica, Molecular y Nuclear and GISC, Universidad Complutense de Madrid, 28040-Madrid, Spain. rahul@fis.ucm.es
authors.forename: Rahul
authors.initials: R
authors.lastname: Marathe
authors.forename: J M R
authors.initials: JM
authors.lastname: Parrondo