Non-Hermitian wave packet approximation for coupled two-level systems in weak and intense fields
Abstract
We introduce a non-Hermitian Schrödinger-type approximation of optical Bloch equations for two-level systems. This approximation provides a complete and accurate description of the coherence and decoherence dynamics in both weak and strong laser fields at the cost of losing accuracy in the description of populations. In this approach, it is sufficient to propagate the wave function of the quantum system instead of the density matrix, providing that relaxation and dephasing are taken into account via automatically adjusted time-dependent gain and decay rates. The developed formalism is applied to the problem of scattering and absorption of electromagnetic radiation by a thin layer comprised of interacting two-level emitters.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Apr 20, 2016
- Source ID
- 10.1063/1.4947140
Entities
People
- Eric Charron
- Maxim Sukharev
- Raiju Puthumpally-Joseph
Organizations
- Air Force Office of Scientific Research
- Arizona State University
- European Commission
- Paris-Saclay University