Decoherence and Phase Transitions in Quantum Dynamics
A particle with internal degrees of freedom is in contact with a bath of photons (necessitating a relativistic treatment). The occurrence of decoherence is established and the density matrix is found to be diagonal in momentum space. In the case of non-trivial internal degrees of freedom and selecti...
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| Veröffentlicht in: | Journal of statistical physics 2019-02, Vol.174 (4), p.800-807 |
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| container_title | Journal of statistical physics |
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| creator | Gaveau, B. Schulman, L. S. |
| description | A particle with internal degrees of freedom is in contact with a bath of photons (necessitating a relativistic treatment). The occurrence of decoherence is established and the density matrix is found to be diagonal in momentum space. In the case of non-trivial internal degrees of freedom and selection rules there is a first order phase transition separating those degrees of freedom. Finally, because probability amplitudes become probabilities, Einstein’s proposal that more than one detector could respond to a signal is answered. |
| doi_str_mv | 10.1007/s10955-018-2214-7 |
| format | Article |
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| issn | 0022-4715 1572-9613 |
| language | eng |
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| source | Springer Nature - Complete Springer Journals |
| subjects | Background radiation Degrees of freedom Detection equipment Mathematical and Computational Physics Phase transitions Photons Physical Chemistry Physics Physics and Astronomy Quantum mechanics Quantum Physics Statistical Physics and Dynamical Systems Theoretical Universities and colleges |
| title | Decoherence and Phase Transitions in Quantum Dynamics |
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