142 citations
- Centre National de la Recherche ScientifiqueFR10 papers
- Taras Shevchenko National University of KyivUA10 papers
- Bogolyubov Institute for Theoretical PhysicsUA8 papers
- University of StuttgartDE6 papers
- Heinrich Heine University DüsseldorfDE5 papers
- Laboratoire Kastler BrosselFR5 papers
- Friedrich-Alexander-Universität Erlangen-NürnbergDE4 papers
- Sorbonne UniversitéFR4 papers
- University of GlasgowGB4 papers
- University of KonstanzDE4 papers
- Charité - Universitätsmedizin BerlinDE3 papers
- CY Cergy Paris UniversitéFR3 papers
8 papers · 1 filter
Finite-Temperature Fidelity-Metric Approach to the Lipkin-Meshkov-Glick Model
D. D. Scherer, C. A. Müller, M. Kastner
The fidelity metric has recently been proposed as a useful and elegant approach to identify and characterize both quantum and classical phase transitions. We study this metric on t…
Coherent backscattering of light from saturated atoms
Vyacheslav Shatokhin, Thomas Wellens, Cord Müller +1
We survey recent progress achieved in understanding the impact of inelastic processes on coherent backscattering of light from cold atoms that are saturated by a powerful laser fie…
Information and entropy in quantum Brownian motion: Thermodynamic entropy versus von Neumann entropy
Christian Hoerhammer, Helmut Buettner
We compare the thermodynamic entropy of a quantum Brownian oscillator derived from the partition function of the subsystem with the von Neumann entropy of its reduced density matri…
Entanglement Witnesses from Single-Particle Interference
T. Scholak, F. Mintert, C. A. Müller
We describe a general method of realizing entanglement witnesses in terms of the interference pattern of a single quantum probe. After outlining the principle, we discuss specific…
Environment-induced two-mode entanglement in quantum Brownian motion
C. Hoerhammer, H. Buettner
The time evolution of quantum correlations of entangled two-mode continuous variable states is examined in single-reservoir as well as two-reservoir models, representing noisy corr…
Diffusive spin transport
Cord A. Mueller
Information to be stored and transported requires physical carriers. The quantum bit of information (qubit) can for instance be realised as the spin 1/2 degree of freedom of a mass…