Physics – Quantum Physics
Scientific paper
2008-02-26
Phys. Rev. B 77, 184301 (2008)
Physics
Quantum Physics
submitted to PRB
Scientific paper
10.1103/PhysRevB.77.184301
We study the decoherence of two coupled spins that interact with a spin-bath environment. It is shown that the connectivity and the coupling strength between the spins in the environment are of crucial importance for the decoherence of the central system. For the anisotropic spin-bath, changing the connectivity or coupling strenghts changes the decoherence of the central system from Gaussian to exponential decay law. The initial state of the environment is shown to affect the decoherence process in a qualitatively significant manner.
Katsnelson Mikhail I.
Raedt Hans de
Yuan Shengjun
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