Master equations of pointer Hamiltonians and decoherence (Q817232)
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scientific article; zbMATH DE number 5009823
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Master equations of pointer Hamiltonians and decoherence |
scientific article; zbMATH DE number 5009823 |
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Master equations of pointer Hamiltonians and decoherence (English)
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8 March 2006
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By using elementary techniques, one derives the master equation for a pointer Hamiltonian and one shows that it is consistent with completely positive dynamics. The key is to refer to the second order approximation of perturbation theory and to make the assumption of a Dirac delta function correlation for the dynamics of the environment. Decoherence of the density matrix so appears in quite a natural way.
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master equation
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completely positive dynamics
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decoherence
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quantum stochastic process
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0.90891206
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0.9010016
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0.8718997
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0.8632004
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0.8623617
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0.8620279
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