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27 papers · 1 filter
Evolving Cosmic Scenario in Modified Chaplygin Gas with Adiabatic Matter Creation
Subhra Bhattacharya, Shibaji Halder, Subenoy Chakraborty
Modified Chaplygin Gas has been successful in describing the cosmic history of the universe from radiation to CDM in standard cosmology, while particle creation mechanism in non…
The Critical Point Equation And Contact Geometry
Amalendu Ghosh, Dhriti Sundar Patra
In this paper, we consider the CPE conjecture in the frame-work of -contact and -contact manifolds. First, we prove that if a complete -contact metric satisfies the C…
Emergent Scenario in first and second order non-equilibrium thermodynamics and stability analysis
Sourav Haldar, Pritikana Bhandari, Subenoy Chakraborty
First and second order non-equilibrium thermodynamics are studied in the context of particle creation mechanism for homogeneous and isotropic FLRW model and a general formulation o…
Vector Quantization using the Improved Differential Evolution Algorithm for Image Compression
Sayan Nag
Vector Quantization, VQ is a popular image compression technique with a simple decoding architecture and high compression ratio. Codebook designing is the most essential part in Ve…
Experimental and numerical simulation of a TPC like set up for the measurement of ion backflow
Deb Sankar Bhattacharya, Purba Bhattacharya, Prasant Kumar Rout +8
Ion backflow is one of the effects limiting the operation of a gaseous detector at high flux, by giving rise to space charge which perturbs the electric field. The natural ability…
Tight-binding dispersion of the prismatic pentagonal lattice
Susobhan Paul, Asim Kumar Ghosh
Tight-binding Hamiltonian on the prismatic pentagonal lattice is exactly solved to obtain the analytic expressions of dispersion relations and eigenvectors. This lattice is made of…