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General relativity, torsion, and quantum theory
Tejinder P. Singh
We recall some of the obstacles which arise when one tries to reconcile the general theory of relativity with quantum theory. We consider the possibility that gravitation theories…
Cognitive science and the connection between physics and mathematics
Anshu Gupta Mujumdar, Tejinder P. Singh
The human mind is endowed with innate primordial perceptions such as space, distance, motion, change, flow of time, matter. The field of cognitive science argues that the abstract…
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…
Stochastic modification of the Schrodinger-Newton equation
Sayantani Bera, Ravi Mohan, Tejinder P. Singh
The Schrödinger-Newton [SN] equation describes the effect of self-gravity on the evolution of a quantum system, and it has been proposed that gravitationally induced decoherence dr…
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…
Possible role of gravity in collapse of the wave-function: a brief survey of some ideas
Tejinder P. Singh
This article is a brief survey of some approaches to implementing the suggestion that collapse of the wave function is mediated by gravity. These approaches include: a possible con…