28 citations · 205 across the 21 of their papers we have counts for
4 papers · 1 filter
Cosmic Hysteresis
Sayantan Choudhury, Shreya Banerjee
Cosmological hysteresis, has interesting and vivid implications in the scenario of a cyclic bouncy universe. This, purely thermodynamical in nature, is caused by the asymmetry in t…
Hysteresis in the Sky
Sayantan Choudhury, Shreya Banerjee
Hysteresis is a phenomenon occurring naturally in several magnetic and electric materials in condensed matter physics. When applied to cosmology, aka cosmological hysteresis, has i…
Cosmological Constant, Quantum Measurement, and the Problem of Time
Shreya Banerjee, Sayantani Bera, Tejinder P. Singh
Three of the big puzzles of theoretical physics are the following: (i) There is apparently no time evolution in the dynamics of quantum general relativity, because the allowed quan…
Cosmic Acceleration in a Model of Fourth Order Gravity
Shreya Banerjee, Nilesh Jayswal, Tejinder P. Singh
We investigate a fourth order model of gravity, having a free length parameter, and no cosmological constant or dark energy. We consider cosmological evolution of a flat Friedmann…