Understanding Structured Reservoirs in Decay and Markow Approximation: Explained

[Carnot]

This is my very first post in this forum, so please correct me, if I'm doing something wrong (if this is not the correct forum for this question or so), but can anyone please tell me what a structured reservoir is when we are working with decay and Markow approximation?

As I understand it, the Markow approximation is the same as saying that the density of states is constant and in the more general case we have a structured reservoir. But what does this mean? Is it just that the density of states is not constant any more and thus is fluctuating?

Thanks

 

[Bill_K]

Yes, I believe that's correct.