82 citations · 287 across the 12 of their papers we have counts for
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gr-qc2021★ 30 cited
Massive scalar field in de Sitter spacetime: a two-loop calculation and a comparison with the stochastic approach
Alexander Yu. Kamenshchik, Alexei A. Starobinsky, Tereza Vardanyan
We examine long-wavelength correlation functions of massive scalar fields in de Sitter spacetime. For the theory with a quartic self-interaction, the two-point function is calculat…
gr-qc2021★ 4 cited
Time and Evolution in Quantum and Classical Cosmology
Alexander Yu. Kamenshchik, Jeinny Nallely Perez Rodriguez, Tereza Vardanyan
We analyze the issue of dynamical evolution and time in quantum cosmology. We emphasize the problem of choice of phase space variables that can play the role of a time parameter in…