5.7k citations · 20.9k across the 136 of their papers we have counts for
6 papers · 1 filter
Fermionic Mach-Zehnder interferometer subject to a quantum bath
Florian Marquardt
We study fermions in a Mach-Zehnder interferometer, subject to a quantum-mechanical environment leading to inelastic scattering, decoherence, renormalization effects, and time-depe…
A many-fermion generalization of the Caldeira-Leggett model
Florian Marquardt, D. S. Golubev
We analyze a model system of fermions in a harmonic oscillator potential under the influence of a dissipative environment: The fermions are subject to a fluctuating force deriving…
Perturbative corrections to the Gutzwiller mean-field solution of the Mott-Hubbard model
C. Schroll, Florian Marquardt, C. Bruder
We study the Mott-insulator transition of bosonic atoms in optical lattices. Using perturbation theory, we analyze the deviations from the mean-field Gutzwiller ansatz, which becom…
Spin Relaxation in a Quantum Dot due to Nyquist Noise
Florian Marquardt, Veniamin A. Abalmassov
We calculate electron and nuclear spin relaxation rates in a quantum dot due to the combined action of Nyquist noise and electron-nuclei hyperfine or spin-orbit interactions. The r…
Effects of dephasing on shot-noise in an electronic Mach-Zehnder interferometer
Florian Marquardt, C. Bruder
We present a theoretical study of the influence of dephasing on shot noise in an electronic Mach-Zehnder interferometer. In contrast to phenomenological approaches, we employ a mic…
Electron-nuclei spin relaxation through phonon-assisted hyperfine interaction in a quantum dot
Veniamin A. Abalmassov, Florian Marquardt
We investigate the inelastic spin-flip rate for electrons in a quantum dot due to their contact hyperfine interaction with lattice nuclei. In contrast to other works, we obtain a s…