1.1k citations
- UNSW SydneyAU11 papers
- GSI Helmholtz Centre for Heavy Ion ResearchDE10 papers
- Johannes Gutenberg University MainzDE10 papers
- Centre National de la Recherche ScientifiqueFR9 papers
- Christian-Albrechts-Universität zu KielDE9 papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR9 papers
- European Organization for Nuclear ResearchCH8 papers
- Michigan State UniversityUS8 papers
- Campus FranceFR7 papers
- Friedrich-Alexander-Universität Erlangen-NürnbergDE7 papers
- Heidelberg UniversityDE7 papers
- Max Planck Institute for Nuclear PhysicsDE6 papers
4 papers · 2 filters
Quantum phase transition in the Dicke model with critical and non-critical entanglement
L. Bakemeier, A. Alvermann, H. Fehske
We study the quantum phase transition of the Dicke model in the classical oscillator limit, where it occurs already for finite spin length. In contrast to the classical spin limit,…
Equilibration and thermalization of the dissipative quantum harmonic oscillator in a non-thermal environment
D. Pagel, A. Alvermann, H. Fehske
We study the dissipative quantum harmonic oscillator with general non-thermal preparations of the harmonic oscillator bath. The focus is on equilibration of the oscillator in the l…
Numerical time propagation of quantum systems in radiation fields
A. Alvermann, H. Fehske, P. B. Littlewood
Atoms, molecules or excitonic quasiparticles, for which excitations are induced by external radiation fields and energy is dissipated through radiative decay, are examples of drive…
Collapse-revival dynamics and atom-field entanglement in the non-resonant Dicke model
A. Alvermann, L. Bakemeier, H. Fehske
We consider the dynamics of atomic and field coherent states in the non-resonant Dicke model. At weak coupling an initial product state evolves into a superposition of multiple fie…