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On signatures of spontaneous collapse dynamics modified single field inflation
Shreya Banerjee, Suratna Das, K. Sravan Kumar +1
The observed classicality of primordial perturbations, despite their quantum origin during inflation, calls for a mechanism for quantum-to-classical transition of these initial flu…
Space-time fluctuations and a stochastic Schrödinger-Newton equation
Sayantani Bera, Priyanka Giri, Tejinder P. Singh
We propose a stochastic modification of the Schrödinger-Newton equation which takes into account the effect of extrinsic spacetime fluctuations. We use this equation to demonstrate…
Quantum discord as a tool for comparing collapse models and decoherence
Shreya Banerjee, Sayantani Bera, Tejinder P. Singh
The quantum to classical transition maybe caused by decoherence or by dynamical collapse of the wave-function. We propose quantum discord as a tool, 1) for comparing and contrastin…
Constraints on fourth order gravity from binary pulsar and gravitational waves
Shreya Banerjee, Sayantani Bera, Srimanta Banerjee +1
We have earlier proposed a fourth order gravity model as a possible explanation for late time cosmic acceleration, and for flattened galaxy rotation curves. The model has a free le…