Physics – Quantum Physics
Scientific paper
2011-10-27
EPL, 96 (2011) 44001
Physics
Quantum Physics
EPL in press
Scientific paper
10.1209/0295-5075/96/44001
We investigate the non-Markovian quantum dynamics of a hybrid open system consisting of one qubit and one qutrit by employing a stochastic Schr\"{o}dinger equation to generate diffusive quantum trajectories. We have established an exact quantum state diffusion (QSD) equation for the dissipative qubit-qutrit system coupled to a bosonic heat bath at zero temperature. As an important application, the non-Markovian QSD equation is employed to simulate the entanglement decay and generation measured by negativity. Finally, some steady state properties of the hybrid system are also discussed.
Jing Jun
Yu Tianhong
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