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6 papers · 2 filters
Quantum Beat of Two Single Photons
Thomas Legero, Tatjana Wilk, Markus Hennrich +2
The interference of two single photons impinging on a beam splitter is measured in a time-resolved manner. Using long photons of different frequencies emitted from an atom-cavity s…
Normal-mode spectroscopy of a single bound atom-cavity system
P. Maunz, T. Puppe, I. Schuster +3
The energy-level structure of a single atom strongly coupled to the mode of a high-finesse optical cavity is investigated. The atom is stored in an intracavity dipole trap and cavi…
Speeding up gate operations through dissipation
Almut Beige, Hugo Cable, Carsten Marr +1
It is commonly believed that decoherence is the main obstacle to quantum information processing. In contrast to this, we show how decoherence in the form of dissipation can improve…
Environmental effects in the quantum-classical transition for the delta-kicked harmonic oscillator
A. R. R. Carvalho, R. L. de Matos Filho, L. Davidovich
We discuss the roles of the macroscopic limit and of different system-environment interactions in the quantum-classical transition for a chaotic system. We consider the kicked harm…
Continuous variable quantum key distribution using polarization encoding and post selection
Stefan Lorenz, Natalia Korolkova, Gerd Leuchs
We present an experimental demonstration of a quantum key distribution protocol using coherent polarization states. Post selection is used to ensure a low error rate and security a…
Relativistic and Radiative Corrections to the Mollow Spectrum
Joerg Evers, Ulrich D. Jentschura, Christoph H. Keitel
The incoherent, inelastic part of the resonance fluorescence spectrum of a laser-driven atom is known as the Mollow spectrum [B. R. Mollow, Phys. Rev. 188, 1969 (1969)]. Starting f…