Non-Markovian Diffusive Unravellings of Entanglement

Details Non-Markovian Diffusive Unravellings of Entanglement Non-Markovian Diffusive Unravellings of Entanglement

2011-05-06

arxiv.org/abs/1105.1358v1

Physics

Quantum Physics

Scientific paper

The fully quantized model of two qubits coupled to a common bath is solved using the quantum state diffusion (QSD) approach in the non-Markovian regime. We have established an explicit time-local non-Markovian QSD equation for the two-qubit dissipative model. Diffusive quantum trajectories are applied to the entanglement estimation of two-qubit systems in a non-Markovian regime. In another interesting example, we have also considered exact entanglement unravellings for a dephasing model. In both cases, non-Markovian features of entanglement evolution are revealed through quantum diffusive unravellings in the qubit state space.

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