Rate of decoherence for an electron weakly coupled to a phonon gas
Adami, Riccardo
László Erdös
We study the dynamics of an electron weakly coupled to a phonon gas. The initial state of the electron is the superposition of two spatially localized distant bumps moving towards each other, and the phonons are in a thermal state. We investigate the dynamics of the system in the kinetic regime and show that the time evolution makes the non-diagonal terms of the density matrix of the electron decay, destroying the interference between the two bumps. We show that such a damping effect is exponential in time, and the related decay rate is proportional to the total scattering cross section of the electron-phonon interaction.
Springer
2008
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https://research-explorer.app.ist.ac.at/record/2754
Adami R, Erdös L. Rate of decoherence for an electron weakly coupled to a phonon gas. <i>Journal of Statistical Physics</i>. 2008;132(2):301-328. doi:<a href="https://doi.org/10.1007/s10955-008-9561-8">10.1007/s10955-008-9561-8</a>
info:eu-repo/semantics/altIdentifier/doi/10.1007/s10955-008-9561-8
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