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astro-ph.CO2011★ 7 cited
The Berry phase in inflationary cosmology
Barun Kumar Pal, Supratik Pal, B. Basu
We derive an analogue of the Berry phase associated with inflationary cosmological perturbations of quantum mechanical origin by obtaining the corresponding wavefunction. We have f…
astro-ph.CO2011★ 8 cited
Confronting quasi-exponential inflation with WMAP seven
Barun Kumar Pal, Supratik Pal, B. Basu
We confront quasi-exponential models of inflation with WMAP seven years dataset using Hamilton Jacobi formalism. With a phenomenological Hubble parameter, representing quasi expone…