Bosonic CNOT gates with Quantum Interrogation

Details Bosonic CNOT gates with Quantum Interrogation Bosonic CNOT gates with Quantum Interrogation

2008-04-09

arxiv.org/abs/0804.1451v1

Physics

Quantum Physics

5 pages, 3 figures, preliminar version

Scientific paper

We put forward a new CNOT gate scheme with atoms and ions based on quantum interrogation and a bosonic particle extension of the models of linear optics quantum computation. We show how the possibility of particle collision can provide the strong interaction that is needed for universal quantum gates. Two atom optics proposals are provided. Unlike previous schemes, these gates are at the same time nondestructive, valid for arbitrary inputs and can work with a probability as close to unity as desired in the lossless case. Data is encoded into position modes and the gates only require basic atom optics elements, which gives potentially simpler quantum computer implementations.

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