4 years ago

Two-level System coupled to Phonons: Full Analytical Solution.

Aurélia Chenu, Shiue-yuan Shiau, Monique Combescot

We propose an analytical procedure to fully solve a two-level system coupled to phonons. Instead of using the common formulation in terms of linear and quadratic system-phonon couplings, we introduce different phonons depending on the system electronic level. We use this approach to recover known results for the linear-coupling limit in a simple way. More importantly, we derive results for the quadratic coupling induced by a phonon frequency change, a problem considered up to now as not analytically solvable.

Publisher URL: http://arxiv.org/abs/1812.09043

DOI: arXiv:1812.09043v2

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