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Decoherence-free creation of atom-atom entanglement in cavity via fractional adiabatic passage

Mahdi Amniat-Talab·Stephane Guerin·Hans-Rudolf Jauslin
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Abstract

We propose a robust and decoherence insensitive scheme to generate controllable entangled states of two three-level atoms interacting with an optical cavity and a laser beam. Losses due to atomic spontaneous transitions and to cavity decay are efficiently suppressed by employing fractional adiabatic passage and appropriately designed atom-field couplings. In this scheme the two atoms traverse the cavity-mode and the laser beam in opposite directions as opposed to other entanglement schemes in which the atoms are required to have fixed locations inside a cavity. We also show that the coherence of a traveling atom can be transferred to the other one without populating the cavity-mode.

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Mahdi Amniat-Talab, Stephane Guerin, Hans-Rudolf Jauslin. 2005-01-26. Decoherence-free creation of atom-atom entanglement in cavity via fractional adiabatic passage. https://doi.org/10.1103/physreva.72.012339

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