Miguel Bello, Sigmund Kohler, and Gloria Platero Phys. Rev. B 96,045408 (2017) We study the dissipative decay of states with a doubly occupied site in a two-electron Hubbard model, known as doublons. For the environment, we consider charge and current noise, which are modeled as a bosonic heat bath that…
Sigmund Kohler Phys. Rev. Lett. 119, 196802 (2017) We propose a protocol for the measurement of adiabatic phases of periodically driven quantum systems coupled to an open cavity that enables dispersive readout. It turns out that the cavity transmission exhibits peaks at frequencies determined by a resonance condition that involves…
F. Forster, G. Petersen, S. Manus, P. Hänggi, D. Schuh, W. Wegscheider, S. Kohler, and S. Ludwig Phys. Rev. Lett 112, 116803 (2014) Controlling coherent interaction at avoided crossings and the dynamics there is at the heart of quantum information processing. A particularly intriguing dynamics is observed in the…
R. Hussein and S. Kohler. arXiv:1503.00534 Annalen der Physik, March 3, 2015 We investigate electron transport in two quantum circuits with mutual Coulomb interaction. The first circuit is a double quantum dot connected to two electron reservoirs, while the second one is a quantum point contact in the weak tunneling…