90 citations · 200 across the 6 of their papers we have counts for
6 papers
Scattering approach to frequency-dependent current noise in Fabry-Pérot graphene devices
Jan Hammer, Wolfgang Belzig
We study finite-frequency quantum noise and photon-assisted electron transport through a wide and ballistic graphene sheet sandwiched between two metallic leads. The elementary exc…
Interference between magnetic field and cavity modes in an extended Josephson junction
V. Humbert, M. Aprili, J. Hammer
An extended Josephson junction consists of two superconducting electrodes that are separated by an insulator and it is therefore also a microwave cavity. The superconducting phase…
Quantum noise in ac-driven resonant-tunneling double barrier structures: Photon-assisted tunneling vs. electron anti-bunching
Jan Hammer, Wolfgang Belzig
We study the quantum noise of electronic current in a double barrier system with a single resonant level. In the framework of the Landauer formalism we treat the double barrier as…
Cavity sideband cooling of the Josephson phase
J. Hammer, M. Aprili, I. Petkovic
An extended Josephson junction intrinsically couples the superconducting current to the microwave cavity in the insulating barrier. We demonstrate that this coupling produces sideb…
Density of states and supercurrent in diffusive SNS junctions: role of nonideal interfaces and spin-flip scattering
J. C. Hammer, J. C. Cuevas, F. S. Bergeret +1
We present a theoretical study of the density of states and supercurrent in diffusive superconductor-normal metal-superconductor (SNS) junctions. In particular, we study the influe…
Proximity Effect and Multiple Andreev Reflections in Diffusive SNS Junctions
J. C. Cuevas, J. Hammer, J. Kopu +2
We present a theory of the current-voltage characteristics in diffusive superconductor-normal-metal-superconductor junctions. By solving the time-dependent Usadel equations we are…