50 citations · 148 across the 10 of their papers we have counts for
10 papers
Some Studies in Noncommutative Quantum Field Theories
Sunandan Gangopadhyay
The central theme of this thesis is to study some aspects of noncommutative quantum mechanics and noncommutative quantum field theory. We explore how noncommutative structures can…
-Minkowski and Snyder algebra from reparametrisation symmetry
Chandrasekhar Chatterjee, Sunandan Gangopadhyay
Following our earlier work \cite{sunandan1, sunandan2}, we derive noncommuting phase-space structures which are combinations of both the -Minkowski and Snyder algebra by exploit…
Hawking radiation and near horizon universality of chiral Virasoro algebra
Rabin Banerjee, Sunandan Gangopadhyay, Shailesh Kulkarni
We show that the diffeomorphism anomaly together with the trace anomaly reveal a chiral Virasoro algebra near the event horizon of a black hole. This algebra is the same irrespecti…
Hawking radiation in Reissner-Nordström blackhole with a global monopole via Covariant anomalies and Effective action
Sunandan Gangopadhyay
We adopt the covariant anomaly cancellation method as well as the effective action approach to obtain the Hawking radiation from the Reissner-Nordström blackhole with a global mono…
Hawking radiation in GHS blackhole, Effective action and Covariant Boundary condition
Sunandan Gangopadhyay
We exploit the expression for the anomalous (chiral) effective action to obtain the Hawking radiation from the GHS (stringy) blackhole falling in the class of the most general sphe…
Strings in pp-wave background and background B-field from membrane and its symplectic quantization
Sunandan Gangopadhyay
The symplectic quantization technique is applied to open free membrane and strings in pp-wave background and background gauge field obtained by compactifying the open membrane in t…