Homogeneous/Inhomogeneous particle production

[Mordred]

I'm currently self studying cosmology, and I've gathered a smattering of articles describing various particle production sources. These sources include production through Homogeneous/inhomogeneous regions. Unruh effect (cosmological Horizon-De Sitter), Hawking radiation. Parker particle production. The list goes on.

One thing I've been noticing is that all these various production regions are all describing regions of varying entropy/energy density regions.

Has anyone come across research or papers that have reconciled the various productions into a more generic formalization?

edit: here are some of the papers

 

[petergreen]

Browse on the web. I do not know.

 

[Mordred]

I always browse the web first , The main similarities lies in the perturbations. These different situations are areas of high perturbations. I'd ask in QM forum but my understanding of QM mathematics is far worse.

edit: I just answered my own question . Follow the history of perturbation theory.