Quantum noise of electron-phonon heat current

Abstract

We analyze heat current fluctuations between electrons and phonons in a metal. In equilibrium we recover the standard result consistent with the fluctuation-dissipation theorem. Here we show that heat current noise at finite frequencies, remains non-vanishing down to zero temperature. We briefly discuss the impact of electron-phonon heat current fluctuations on calorimetry, in particular in the regime of single microwave-photon detection.

References in corpus (3)

• Fast electron thermometry towards ultra-sensitive calorimetric detection
• Dispersive thermometry with a Josephson junction coupled to a resonator
• Primary thermometry triad at 6 mK in mesoscopic circuits

Cited by in corpus (14)

• Colloquium: Quantum heat transport in condensed matter systems
• Quantum energy exchange and refrigeration: A full-counting statistics approach
• Nanoscale Quantum Calorimetry with Electronic Temperature Fluctuations
• Electronic heat current fluctuations in a quantum dot
• A model for calorimetric measurements in an open quantum system
• An exactly solvable model of calorimetric measurements
• Large Deviations and Fluctuation Theorem for the Quantum Heat Current
• Hybrid master equation for calorimetric measurements
• Electron cooling by phonons in superconducting proximity structures
• Signature of resonant modes in radiative heat current noise spectrum
• Revisiting the low temperature electron-phonon relaxation of noble metals
• Thermoelectric cooling of a finite reservoir coupled to a quantum dot
• Down-conversion of quantum fluctuations of photonic heat current in a circuit
• Apparent Heating due to Imperfect Calorimetric Measurements