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Communications in Theoretical Physics

Quantum Information Splitting of an Arbitrary Three-Atom State by Using W-class States in Cavity QED

Yuanhua Li, Yi-you Nie

Published Jun 1, 2012• 28 citations
Publisher

Abstract

We demonstrate that four sets of W-class states can be used to realize the deterministic quantum information splitting of an arbitrary three-atom state in cavity QED. The scheme does not involve Bell-state measurement and is insensitive to both the cavity decay and the thermal field.
DOI
10.1088/0253-6102/57/6/10

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We propose two schemes for quantum information splitting via W-class state. The first scheme is based on the interaction of single atom with single-mode field, while the second scheme is based on the simultaneous interaction of two atoms with single-mode cavity. For the first scheme, the difficulty of two atoms required to be simultaneously sent through one cavity is avoid. For the second scheme, it is immune to thermal field. Both schemes are experimentally feasible based on current cavity QED techniques.