109 citations · 165 across the 3 of their papers we have counts for
4 papers
The quantum phase transition and correlations in the multi-spin-boson model
André Winter, Heiko Rieger
We consider multiple non-interacting quantum mechanical two-level systems coupled to a common bosonic bath and study its quantum phase transition with Monte Carlo simulations using…
Quantum phases of incommensurate optical lattices due to cavity backaction
Hessam Habibian, André Winter, Simone Paganelli +2
Ultracold bosonic atoms are confined by an optical lattice inside an optical resonator and interact with a cavity mode, whose wave length is incommensurate with the spatial periodi…
Bose-glass phases of ultracold atoms due to cavity backaction
Hessam Habibian, André Winter, Simone Paganelli +2
We determine the quantum ground-state properties of ultracold bosonic atoms interacting with the mode of a high-finesse resonator. The atoms are confined by an external optical lat…
The quantum phase transition in the sub-ohmic spin-boson model: Quantum Monte-Carlo study with a continuous imaginary time cluster algorithm
Andre Winter, Heiko Rieger, Matthias Vojta +1
A continuous time cluster algorithm for two-level systems coupled to a dissipative bosonic bath is presented and applied to the sub-ohmic spin-Boson model. When the power s of the…