| Article ID | Journal | Published Year | Pages | File Type | 
|---|---|---|---|---|
| 5383334 | Chemical Physics Letters | 2012 | 5 Pages | 
Abstract
												⺠We consider non-linear response functions for a simple two-level molecular system. ⺠It is shown that it cannot be constructed using a single reduced density matrix master equation. ⺠A set of master equations is derived which together reproduce the two-level response function. ⺠Parametric projection operators are introduced to derive proper equations in general cases.
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											Authors
												TomáÅ¡ ManÄal, FrantiÅ¡ek Å anda, 
											