arXiv subjects

T. Pellizzari

Publications and source records attributed to T. Pellizzari.

2 recordsLinked to original sources

arXiv1997

On the Improvement of Frequency Stardards with Quantum Entanglement

The optimal precision of frequency measurements in the presence of decoherence is discussed. We analyze different preparations of n two level systems as well as different measurement procedures. We show that standard Ramsey spectroscopy on uncorrelated atoms and optimal measurements on maximally entangled states provide the same resolution. The best resolution is achieved using partially entangled preparations with a high degree of symmetry.

quant-ph↗

arXiv1997

Quantum Networking with Optical Fibres

I propose a scheme which allows for reliable transfer of quantum information between two atoms via an optical fibre in the presence of decoherence. The scheme is based on performing an adiabatic passage through two cavities which remain in their respective vacuum states during the whole operation. The scheme may be useful for networking several ion-trap quantum computers, thereby increasing the number of quantum bits involved in a computation.

quant-ph↗