523 citations · 1.5k across the 16 of their papers we have counts for
10 papers · 1 filter
Finite-Frequency Boson-Number Bounds Across the Quantum Rabi Transition
Razmik G. Unanyan, Michael Fleischhauer, Nikolay V. Vitanov
We consider the quantum Rabi model, a fundamental model of quantum optics describing a two-level system coupled to a bosonic mode, including counter-rotating terms. In the limit of…
Truncated Wigner approximation for spins in continuous phase space
Jens Hartmann, Tom Schlegel, Viktoria Noel +2
We review the truncated Wigner approximation (TWA) for spins as a computationally inexpensive numerical approximation method to describe interacting and / or dissipative many-body…
Path integral approach to the truncated Wigner approximation of driven-dissipative spins
Viktoria Noel, Michael Fleischhauer, Igor Lesanovsky
Phase-space approaches such as the truncated Wigner approximation (TWA) provide an efficient semiclassical framework for performing approximate simulations of the dynamics of open…
Quantum emitters coupled to surface plasmons of a nano-wire: A Green function approach
D. Dzsotjan, A. S. Sorensen, M. Fleischhauer
We investigate a system consisting of a single, as well as two emitters strongly coupled to surface plasmon modes of a nano-wire using a Green function approach. Explicit expressio…
Short-time vs. long-time dynamics of entanglement in quantum lattice models
R. G. Unanyan, D. Muth, M. Fleischhauer
We study the short-time evolution of the bipartite entanglement in quantum lattice systems with local interactions in terms of the purity of the reduced density matrix. A lower bou…
Coherent Control of Stationary Light Pulses
F. E. Zimmer, A. André, M. D. Lukin +1
We present a detailed analysis of the recently demonstrated technique to generate quasi-stationary pulses of light [M. Bajcsy {\it et al.}, Nature (London) \textbf{426}, 638 (2003)…
Light induced effective magnetic fields for ultra-cold atoms in planar geometries
G. Juzeliunas, J. Ruseckas, P. Ohberg +1
We propose a scheme to create an effective magnetic field for ultra-cold atoms in a planar geometry. The set-up allows the experimental study of classical and quantum Hall effects…
Sagnac interferometry based on ultra-slow polaritons in cold atomic vapors
F. Zimmer, M. Fleischhauer
The advantages of light and matter-wave Sagnac interferometers -- large area on one hand and high rotational sensitivity per unit area on the other -- can be combined utilizing ult…
A geometric phase gate without dynamical phases
R. G. Unanyan, M. Fleischhauer
A general scheme for an adiabatic geometric phase gate is proposed which is maximally robust against parameter fluctuations. While in systems with SU(2) symmetry geometric phases a…
Generation of many-particle entanglement in an ion trap by adiabatic ground-state transitions
R. G. Unanyan, M. Fleischhauer
We discuss the creation of many-particle entanglement in an ion trap where all ions are simultaneously coupled to bichromatic laser fields. It is shown that in a time-averaged, coa…