Two-level system coupled to phonons: Full analytical solution
Journal Article
·
· Physical Review B
- Donostia International Physics Center, San Sebastián (Spain); IKERBASQUE, Basque Foundation for Science, Bilbao (Spain); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- National Center for Theoretical Sciences, Hsinchu (Taiwan)
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris (France)
In this study, 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.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE
- Grant/Contract Number:
- 89233218CNA000001
- OSTI ID:
- 1492614
- Alternate ID(s):
- OSTI ID: 1489859
- Report Number(s):
- LA-UR-18-25839; PRBMDO
- Journal Information:
- Physical Review B, Vol. 99, Issue 1; ISSN 2469-9950
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 6 works
Citation information provided by
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