Quantum Bang-Bang control of entangle states

Details Quantum Bang-Bang control of entangle states Quantum Bang-Bang control of entangle states

2011-10-19

arxiv.org/abs/1110.4249v2

Physics

Quantum Physics

Scientific paper

The effect of quantum "Bang-Bang" control on entangled states is studied. A system of two initially entangled qubits interacting with a bosonic environment is considered. The interaction induces a loss of the initial entanglement of the two qubits and for specific initial states it causes "entanglement sudden death". A pulsed control of both qubits leads to the preservation of the entanglement. It is also shown that a single pulse performed after the sudden death time induces an entanglement revival in the two qubits system.

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