Quantum heat fluctuations of single particle sources

Abstract

Optimal single electron sources emit regular streams of particles, displaying no low frequency charge current noise. Due to the wavepacket 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 wavefunction properties and display strong non-classical features.

5 pages, 2 figures

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Cited by in corpus (9)

• Periodic energy transport and entropy production in quantum electronics
• Energy and power fluctuations in ac-driven coherent conductors
• First-order correlation function of the stream of single-electron wave-packets
• Mixed, charge and heat noises in thermoelectric nanosystems
• Full-counting statistics of transient energy current in mesoscopic systems
• Heat and charge transport measurements to access single-electron quantum characteristics
• Heat asymmetries in nanoscale conductors: The role of decoherence and inelasticity
• Interference and multi-particle effects in a Mach-Zehnder interferometer with single-particle sources
• Minimal-excitation single-particle emitters: A comparison of charge and energy transport properties