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Theory of the photonic Joule effect in superconducting circuits
Samuel Cailleaux, Quentin Ficheux, Nicolas Roch +1
When a small system is coupled to a bath, it is generally assumed that the state of the bath remains unaffected by the system due to the bath's large number of degrees of freedom.…
Scattering approach to near-field radiative heat transfer
Matthias Hübler, Denis M. Basko, Wolfgang Belzig
We formulate the problem of near-field radiative heat transfer as an effective quantum scattering theory for excitations of the matter. Built from the same ingredients as the semic…
Going beyond Landauer scattering theory to describe spatially-resolved non-local heating and cooling in quantum thermoelectrics
Nico G. Leumer, Denis M. Basko, Rodolfo A. Jalabert +2
Spatially-resolved heating and cooling in nanostructures is nowadays measured with various nanoscale thermometry techniques, including scanning thermometry. Yet the most commonly u…
Direct detection of down-converted photons spontaneously produced at a single Josephson junction
Dorian Fraudet, Izak Snyman, Denis M. Basko +7
We study spontaneous photon decay into multiple photons triggered by strong non-linearities in a superconducting quantum simulator of the boundary sine-Gordon impurity model. Previ…
Theory of quasiparticle-induced errors in driven-dissipative Schrödinger cat qubits
Kirill Dubovitskii, Denis M. Basko, Julia S. Meyer +1
Understanding the mechanisms of qubit decoherence is a crucial prerequisite for improving the qubit performance. In this work we discuss the effects of residual Bogolyubov quasipar…