title: Quantum heat fluctuations of single-particle sources.
abstract: Optimal single electron sources emit regular streams of particles, displaying no low-frequency charge current noise. Because of the wave packet nature of the emitted particles, the energy is, however, fluctuating, giving rise to heat current noise. We investigate theoretically this quantum source of heat noise for an emitter coupled to an electronic probe in the hot-electron regime. The distribution of temperature and potential fluctuations induced in the probe is shown to provide direct information on the single-particle wave function properties and display strong nonclassical features.
authors.affiliation: Division of Mathematical Physics, Lund University, Box 118, S-221 00 Lund, Sweden.
authors.forename: F
authors.initials: F
authors.lastname: Battista
authors.affiliation: Department of Metal and Semiconductor Physics, NTU Kharkiv Polytechnic Institute, 61002 Kharkiv, Ukraine.
authors.forename: M
authors.initials: M
authors.lastname: Moskalets
authors.affiliation: Laboratoire de Physique des Solides, Université Paris Sud, 91405 Orsay, France.
authors.forename: M
authors.initials: M
authors.lastname: Albert
authors.affiliation: Division of Mathematical Physics, Lund University, Box 118, S-221 00 Lund, Sweden.
authors.forename: P
authors.initials: P
authors.lastname: Samuelsson