32 citations · 37 across the 2 of their papers we have counts for
4 papers
Dynamically Generated Synthetic Electric Fields for Photons
Petr Zapletal, Stefan Walter, Florian Marquardt
Static synthetic magnetic fields give rise to phenomena including the Lorentz force and the quantum Hall effect even for neutral particles, and they have by now been implemented in…
General linearized theory of quantum fluctuations around arbitrary limit cycles
Carlos Navarrete-Benlloch, Talitha Weiss, Stefan Walter +1
The theory of Gaussian quantum fluctuations around classical steady states in nonlinear quantum-optical systems (also known as standard linearization) is a cornerstone for the anal…
Momentum and position detection in nanoelectromechanical systems beyond Born and Markov approximations
Stefan Walter, Björn Trauzettel
We propose and analyze different schemes to probe the quantum nature of nanoelectromechanical systems (NEMS) by a tunnel junction detector. Using the Keldysh technique, we are able…
Positivity of the two-dimensional Brown-Ravenhall operator
Stefan Walter
We determine the critical coupling of the two-dimensional Brown-Ravenhall operator with Coulomb potential. Boundedness from below has essentially been proven by Bouzouina, whose wo…