119 citations · 591 across the 23 of their papers we have counts for
14 papers · 1 filter
Effective Hamiltonians in the Quantum Rabi Problem
P. Gartner, V. Moldoveanu
We revisit the theoretical description of the ultrastrong light-matter interaction in terms of exactly solvable effective Hamiltonians. A perturbative approach based on polaronic a…
Quantum dot exciton dephasing by Coulomb interaction. A fermionic analogue of the independent boson model
I. V. Dinu, M. Tolea, P. Gartner
The time evolution of a quantum dot exciton in Coulomb interaction with wetting layer carriers is treated using an approach similar to the independent boson model. The role of the…
Spontaneous symmetry breaking in the laser transition
P. Gartner
In analogy with equilibrium phase transitions, we address the problem of the instability to symmetry-breaking perturbations of systems undergoing a laser transition. The symmetry i…
Delayed transition to coherent emission in nanolasers with extended gain media
Frederik Lohof, Roy Barzel, Paul Gartner +1
The realization of high- lasers is one of the prime applications of cavity-QED promising ultra-low thresholds, integrability and reduced power consumption in the field of \texti…
Coulomb-assisted cavity feeding in the non-resonant optical emission from a quantum dot
Matthias Florian, Paul Gartner, Alexander Steinhoff +2
Recent experiments have demonstrated that for a quantum dot in an optical resonator off-resonant cavity mode emission can occur even for detunings of the order of 10 meV. We show t…
A scaling-limit approach to the theory of laser transition
Paul Gartner
The conditions for the appearance of a sharp laser transition are formulated in terms of a scaling limit, involving vanishing cavity loss and light-matter coupling, , $g \t…