3.5k citations
- Helmholtz Institute JenaDE407 papers
- Centre National de la Recherche ScientifiqueFR249 papers
- GSI Helmholtz Centre for Heavy Ion ResearchDE169 papers
- California Institute of TechnologyUS161 papers
- Max Planck Institute for Gravitational PhysicsDE155 papers
- Pennsylvania State UniversityUS147 papers
- Fraunhofer Institute for Applied Optics and Precision EngineeringDE146 papers
- Australian National UniversityAU139 papers
- Max Planck Institute for AstronomyDE138 papers
- University of CambridgeGB138 papers
- Goddard Space Flight CenterUS119 papers
- Leibniz University HannoverDE115 papers
6 papers · 2 filters
Quantum state conversion by cross-Kerr interaction
J. Clausen, L. Knoell, D. -G. Welsch
A generalized Mach-Zehnder-type interferometer equipped with cross-Kerr elements is proposed to convert N-photon truncated single-mode quantum states into (N+1)-mode single-photon…
Atomic entanglement near a realistic microsphere
Ho Trung Dung, S Scheel, D-G Welsch +1
We study a scheme for entangling two-level atoms located close to the surface of a dielectric microsphere. The effect is based on medium-assisted spontaneous decay, rigorously taki…
On a Problem in Quantum Summation
Stefan Heinrich, Erich Novak
We consider the computation of the mean of sequences in the quantum model of computation. We determine the query complexity in the case of sequences which satisfy a -summability…
Intermolecular energy transfer in the presence of dispersing and absorbing media
Ho Trung Dung, Ludwig Knöll, Dirk-Gunnar Welsch
By making use of the Green function concept of quantization of the electromagnetic field in Kramers--Kronig consistent media, a rigorous quantum mechanical derivation of the rate o…
Continuous-variable quantum teleportation through lossy channels
A. V. Chizhov, L. Knöll, D. -G. Welsch
The ultimate limits of continuous-variable single-mode quantum teleportation due to absorption are studied, with special emphasis on (quasi-)monochromatic optical fields propagatin…
Entanglement generation and degradation by passive optical devices
Stefan Scheel, Dirk-Gunnar Welsch
The influence of losses in the interferometric generation and the transmission of continuous-variable entangled light is studied, with special emphasis on Gaussian states. Based on…