424 citations · 935 across the 16 of their papers we have counts for
16 papers
Entanglement of Hard-Core Bosons in Bipartite Lattices
Xue-Feng Zhang, Raoul Dillenschneider, Sebastian Eggert
The entanglement of hard-core bosons in square and honeycomb lattices with nearest-neighbor interactions is estimated by means of quantum Monte Carlo simulations and spin-wave anal…
Impurity entanglement through electron scattering in a magnetic field
Alexandros Metavitsiadis, Raoul Dillenschneider, Sebastian Eggert
We study the entanglement of magnetic impurities in an environment of electrons through successive scattering while an external magnetic field is applied. We show that the dynamics…
Supersolid phase transitions for hardcore bosons on a triangular lattice
Xue-Feng Zhang, Raoul Dillenschneider, Yue Yu +1
Hard-core bosons on a triangular lattice with nearest neighbor repulsion are a prototypical example of a system with supersolid behavior on a lattice. We show that in this model th…
Quantum Smoluchowski equation for driven systems
Raoul Dillenschneider, Eric Lutz
We consider a driven quantum harmonic oscillator strongly coupled to a heat bath. Starting from the exact quantum Langevin equation, we use a Green's function approach to determine…
Memory erasure in small systems
Raoul Dillenschneider, Eric Lutz
We consider an overdamped nanoparticle in a driven double-well potential as a generic model of an erasable one-bit memory. We study in detail the statistics of the heat dissipated…
Quantum discord and quantum phase transition in spin chains
Raoul Dillenschneider
Quantum phase transitions of the transverse Ising and antiferromagnetic XXZ spin S=1/2 chains are studied using quantum discord. Quantum discord allows the measure of quantum corre…