G
Ghanashyam Date
Researcher at Institute of Mathematical Sciences, Chennai
Publications - 64
Citations - 1415
Ghanashyam Date is an academic researcher from Institute of Mathematical Sciences, Chennai. The author has contributed to research in topics: Loop quantum cosmology & Hamiltonian (quantum mechanics). The author has an hindex of 22, co-authored 63 publications receiving 1370 citations. Previous affiliations of Ghanashyam Date include Bhabha Atomic Research Centre & Stony Brook University.
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A discrete time presentation of quantum dynamics
TL;DR: In this paper, a discrete time description of usual quantum mechanics was obtained without any approximation or explicit discretization, which mimics features of the discrete time evolution of loop quantum cosmology.
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Homogeneous loop quantum cosmology: the role of the spin connection
TL;DR: In this article, a quantization of the corresponding Hamiltonian constraints is presented and shown to lead to a locally stable, non-singular evolution compatible with almost classical behaviour at large volume.
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Genericness of a Big Bounce in Isotropic Loop Quantum Cosmology
TL;DR: It is shown that with a scalar matter field, the big bounce is generic in the sense that it is independent of quantization ambiguities and the details of scalar field dynamics.
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Quantum suppression of the generic chaotic behavior close to cosmological singularities.
Martin Bojowald,Ghanashyam Date +1 more
TL;DR: The chaotic behavior of the Bianchi IX model stops once quantum effects become important, consistent with the discrete structure of space predicted by loop quantum gravity.
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Topological Interpretation of Barbero-Immirzi Parameter
TL;DR: In this paper, a canonical Hamiltonian formulation for a theory of gravity based on a Lagrangian density made up of the Hilbert-Palatini term and, instead of the Holst term, the Nieh-Yan topological density is presented.