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- Centre National de la Recherche ScientifiqueFR208 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR130 papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR124 papers
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9 papers · 2 filters
Schrodinger cats and their power for quantum information processing
A. Gilchrist, Kae Nemoto, W. J. Munro +4
We outline a toolbox comprised of passive optical elements, single photon detection and superpositions of coherent states (Schrodinger cat states). Such a toolbox is a powerful col…
Quantum coherence: myth or fact?
Kae Nemoto, Samuel L. Braunstein
It has recently been argued that the inability to measure the absolute phase of an electromagnetic field prohibits the representation of a laser's output as a quantum optical coher…
Quantum Search Algorithm with more Reliable Behaviour using Partial Diffusion
Ahmed Younes, Jon Rowe, Julian Miller
In this paper, we will use a quantum operator which performs the inversion about the mean operation only on a subspace of the system ({\it Partial Diffusion Operator}) to propose a…
Preparing high purity initial states for nuclear magnetic resonance quantum computing
M. S. Anwar, D. Blazina, H. Carteret +5
Here we demonstrate how para-hydrogen can be used to prepare a two-spin system in an almost pure state which is suitable for implementing nuclear magnetic resonance (NMR) quantum c…
A Hybrid Quantum Search Engine: A Fast Quantum Algorithm for Multiple Matches
Ahmed Younes, Jon Rowe, Julian Miller
In this paper we will present a quantum algorithm which works very efficiently in case of multiple matches within the search space and in the case of few matches, the algorithm per…
Towards photostatistics from photon-number discriminating detectors
Hwang Lee, Ulvi H. Yurtsever, Pieter Kok +4
We study the properties of a photodetector that has a number-resolving capability. In the absence of dark counts, due to its finite quantum efficiency, photodetection with such a d…