17 citations · 53 across the 14 of their papers we have counts for
15 papers
On the spin dependence of the emergent gravity phenomena as observed in axially symmetric black hole accretion with spatially varying adiabatic index
Kalyanbrata Pal, Souvik Ghose, Ripon Sk +2
The present work addresses an axisymmetrically accreting black hole system from three perspectives: the astrophysical, the dynamical systems, and the emergent gravity standpoint. S…
Dynamical analog spacetimes from nonlinear perturbations in a topological material
Surajit Das, Surojit Dalui, Hrishit Banerjee +1
Emergent spacetime analogs in condensed matter systems have opened a fascinating window into simulating aspects of gravitational physics in controlled laboratory environments. In t…
Non-Commutative fluid: an alternative source of cosmic acceleration
Raj Kumar Das, Arpan Krishna Mitra
We present a novel formulation for the Hubble parameter derived from Newtonian cosmology, incorporating non-commutative fluid dynamics through a deformed Poisson bracket structure.…
Spinning Black Hole in a Fluid
Surojit Dalui, Arpan Krishna Mitra, Deeshani Mitra +1
In this paper, we propose a new Analogue Gravity example - a spinning (or Kerr) Black Hole in an extended fluid model. The fluid model receives Berry curvature contributions and ap…
Acoustic Kerr Metric in Analogue Gravity
Deeshani Mitra, Surojit Dalui, Subir Ghosh +1
The present paper is based on a previous work (involving two of the present authors) where a generalized fluid dynamical model was proposed. The underlying symplectic structure of…
Barrow Holographic Dark Energy in Brane World Cosmology
Anirban Chanda, Arpan Krishna Mitra, Souvik Ghose +2
Cosmological features of Barrow Holographic Dark Energy (BHDE), a recent generalization of original Holographic dark energy with a richer structure, are studied in the context of D…
Multi-criticality and related bifurcation in accretion discs around non-rotating black holes -- an analytical study
Arpan Krishna Mitra, Aishee Chakraborty, Pratik Tarafdar +1
Low angular momentum, general relativistic, axially symmetric accretion of hydrodynamic fluid onto Schwarzschild black holes may undergo more than one critical transition. To obtai…
Divergence Anomaly and Schwinger Terms: Towards a Consistent Theory of Anomalous Classical Fluid
Arpan Krishna Mitra, Subir Ghosh
Anomaly, a generic feature of relativistic quantum field theory, is shown to be present in non-relativistic classical ideal fluid. A new result is the presence of anomalous terms i…
Simulating gravity in rotational flow
Satadal Datta, Arpan Krishna Mitra
We consider classical fluids in non-relativistic framework. The flow is considered to be barotropic, inviscid and rotational. We study the linear perturbations over a steady state…
Noncommutative fluid and Growing Modes of Inhomogeneity in (Newtonian) Cosmology
Arpan Krishna Mitra, Rabin Banerjee, Subir Ghosh
Time evolution of modes of density contrast, in particular the growing modes, dictate the structure formation in Universe. In this paper we explicitly show how (spatial) Non-Commut…
On the equivalence among stress tensors in a gauge-fluid system
Arpan Krishna Mitra, Rabin Banerjee, Subir Ghosh
In this paper we bring out the subtleties involved in the study of a first order relativistic field theory with auxiliary field variables playing an essential role. In particular w…
Canonical formulation for nonrelativistic Euler fluids and Schwinger type conditions
Rabin Banerjee, Arpan Krishna Mitra
We present a new approach, based on Noether's energy-momentum tensor, to construct the lagrangian for nonrelativistic nonisentropic Euler fluids. An advantage of this approach is t…
Hamiltonian analysis of interacting fluids
Rabin Banerjee, Subir Ghosh, Arpan Krishna Mitra
Ideal fluid dynamics is studied as a relativistic field theory with particular importance on its hamiltonian structure. The Schwinger condition, whose integrated version yields the…
Constitutive relations and response parameters in two dimensional hydrodynamics with gauge and gravitational anomalies
Rabin Banerjee, Shirsendu Dey
We obtain the constitutive relations for the stress tensor and gauge current in dimensional hydrodynamics in the presence of both gauge and gravitational (conformal as well…
Two dimensional hydrodynamics with gauge and gravitational anomalies
Rabin Banerjee, Shirsendu Dey, Bibhas Ranjan Majhi +1
We present a new approach to discuss two dimensional chiral and non-chiral hydrodynamics with gauge and gravitational anomalies. Exact constitutive relations for the stress tensor…