Controlled Phase Gate Between a Single Atom and an Optical Photon

Name: Controlled Phase Gate Between a Single Atom and an Optical Photon
Brand: Springer International Publishing AG
SKU: 9783319265469
Price: 105.41 EUR
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Автор: Andreas Reiserer

Език:

Корици: С твърди корици

Издател: Springer International Publishing AG

Наличност: Външен склад

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This thesis reports on major steps towards the realization of scalable quantum networks. It addresse...

Информация за книгата

Автор

Andreas Reiserer

Език

Английски език

Корици

Книга - С твърди корици

Издадена

2015

страници

EAN

9783319265469

ISBN

3319265466

Enbook ID

09931534

Издател

Springer International Publishing AG

Теглоt

315

Размери

155 x 235 x 8

Пълно описание

This thesis reports on major steps towards the realization of scalable quantum networks. It addresses the experimental implementation of a deterministic interaction mechanism between flying optical photons and a single trapped atom. In particular, it demonstrates the nondestructive detection of an optical photon. To this end, single rubidium atoms are trapped in a three-dimensional optical lattice at the center of an optical cavity in the strong coupling regime. Full control over the atomic state - its position, its motion, and its electronic state - is achieved with laser beams applied along the resonator and from the side. When faint laser pulses are reflected from the resonator, the combined atom-photon state acquires a state-dependent phase shift. In a first series of experiments, this is employed to nondestructively detect optical photons by measuring the atomic state after the reflection process. Then, quantum bits are encoded in the polarization of the laser pulse and in the Zeeman state of the atom. The state-dependent phase shift mediates a deterministic universal quantum gate between the atom and one or two successively reflected photons, which is used to generate entangled atom-photon, atom-photon-photon, and photon-photon states out of separable input states.§

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Controlled Phase Gate Between a Single Atom and an Optical Photon

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