368 citations · 3.4k across the 96 of their papers we have counts for
98 papers
Classical versus non-classical photon states for detecting vacuum non-linearity
N. Ahmadiniaz, C. Kohlfürst, R. Shaisultanov +1
Quantum electrodynamics (QED) predicts that the vacuum should behave as a non-linear medium. For many schemes aimed at verifying this fundamental prediction, the signal consists of…
Quantum Zeno effect versus adiabatic quantum computing and quantum annealing
Naser Ahmadiniaz, Dennis Kraft, Gernot Schaller +1
For the adiabatic version of Grover's quantum search algorithm as proposed by Roland and Cerf, we study the impact of decoherence caused by a rather general coupling to some enviro…
Stimulated emission or absorption of gravitons by light
Ralf Schützhold
We study the exchange of energy between gravitational and electromagnetic waves in a Sagnac type geometry, in analogy to an ``optical Weber bar.'' In the presence of a gravitationa…
Continuous Dimer Angles on the Silicon Surface: Critical Properties and the Kibble-Zurek Mechanism
Andreas Weitzel, Gernot Schaller, Friedemann Queisser +1
Langevin dynamics simulations are used to analyze the static and dynamic properties of an {XY} model adapted to dimers forming on Si(001) surfaces. The numerics utilise high-perfor…
Effective time-dependent temperature for fermionic master equations beyond the Markov and the secular approximations
Lukas Litzba, Eric Kleinherbers, Jürgen König +2
We consider a fermionic quantum system exchanging particles with an environment at a fixed temperature and study its reduced evolution by means of a Redfield-I equation with time-d…
Relaxation to persistent currents in a Hubbard trimer coupled to fermionic baths
Nikodem Szpak, Gernot Schaller, Ralf Schützhold +1
We consider a ring of fermionic quantum sites, modeled by the Fermi--Hubbard Hamiltonian, in which electrons can move and interact strongly via the Coulomb repulsion. The system is…