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The implementation of more and more efficient nanodevices exploitable in applicative contexts like for example quantum computers often requires a highly challenging miniaturizing process aimed at packing a huge number of point-like basic elements whose dynamics mimics indeed that of a qubit. Stimulated by such a requirement, over the last few years theoretical schemes using the language of the spin...
We derive the master equation of a system of two coupled two state systems by taking into account their interaction with two independent bosonic baths [1]. Important features of the dynamics are brought to light, such as the stationary state at general temperatures and the behaviour of the entanglement at zero temperature, presenting the phenomena of sudden death and sudden birth as well as the presence...
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