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- Publications
- Influence
Focusing light to a tighter spot
- S. Quabis, Ralf Dorn, M. Eberler, O. Glöckl, G. Leuchs
- Physics
- 25 May 2000
Abstract The smallest spot sizes are reached by focusing an annular shaped light beam with a high aperture lens. We show theoretically that the focal area is further reduced when using a novel… Expand
Colloquium: The Einstein-Podolsky-Rosen paradox: From concepts to applications
- M. Reid, P. D. Drummond, +5 authors G. Leuchs
- Physics
- 31 May 2008
This Colloquium examines the field of the Einstein, Podolsky, and Rosen (EPR) gedanken experiment, from the original paper of Einstein, Podolsky, and Rosen, through to modern theoretical proposals of… Expand
Quantum information processing and communication
- P. Zoller, T. Beth, +36 authors A. Zeilinger
- 1 September 2005
TLDR
A generator for unique quantum random numbers based on vacuum states
- C. Gabriel, C. Wittmann, +5 authors G. Leuchs
- Physics
- 1 October 2010
Researchers demonstrate random-number generation by exploiting the intrinsic randomness of vacuum states. The approach may lead to reliable and high-speed quantum random-number generators for… Expand
Observation of optical polarization Möbius strips
Light with twist and structure Möbius strips are three-dimensional structures consisting of a surface with just a single side. Readily demonstrated by snipping a paper ring, adding a twist, and then… Expand
Quantum information with continuous variables of atoms and light
Bipartite and Multipartite Entanglement of Gaussian States (G Adesso & F Illuminati) Gaussian Quantum Channels (J Eisert & M M Wolf) Entanglement in Systems of Interacting Harmonic Oscillators (K M R… Expand
Perfect excitation of a matter qubit by a single photon in free space
- M. Stobinska, G. Alber, G. Leuchs
- Physics
- 12 August 2008
We propose a scheme for perfect excitation of a single two-level atom by a single photon in free space. The photon state has to match the time reversed photon state originating from spontaneous decay… Expand
The focus of light—linear polarization breaks the rotational symmetry of the focal spot
Abstract We experimentally demonstrate for the first time that a linearly polarized beam is focused to an asymmetric spot when using a high-numerical aperture focusing system. This asymmetry was… Expand
Classical entanglement in polarization metrology
- Falk Toppel, A. Aiello, C. Marquardt, E. Giacobino, G. Leuchs
- Physics
- 7 January 2014
Quantum approaches relying on entangled photons have been recently proposed to increase the efficiency of optical measurements. We demonstrate here that, surprisingly, the use of classical light with… Expand