104 citations · 1.2k across the 72 of their papers we have counts for
52 papers · 1 filter
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…
Uncertainty Relations for the Relativistic Jackiw-Nair Anyon: A First Principles Derivation
Joydeep Majhi, Subir Ghosh
In this paper we have explicitly computed the and (Heisenberg) Uncertainty Relations for the model of relativistic particles with arbitrary…
Quantum Back Flow Across a Black Hole Horizon in a Toy Model Approach
Dripto Biswas, Subir Ghosh
Quantum Back Flow (QBF), discovered quite a few years back, is a generic purely quantum phenomenon, in which the probability of finding a particle in a direction is non-zero (and i…
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…
Noncommutative Geometry and Fluid Dynamics
Praloy Das, Subir Ghosh
In the present paper we have developed a Non-Commutative (NC) generalization of perfect fluid model from first principles, in a Hamiltonian framework. The noncommutativity is intro…
Particle on a Torus Knot: Constrained Dynamics and Semi-Classical Quantization in a Magnetic Field
Praloy Das, Souvik Pramanik, Subir Ghosh
Kinematics and dynamics of a particle moving on a torus knot poses an interesting problem as a constrained system. In the first part of the paper we have derived the modified sympl…
AdS-CFT Correspondence in Noncommutative background, related thermodynamics and Holographic Superconductor in Magnetic Field
Souvik Pramanik, Subir Ghosh
In this work, we formulate a Non-Commutative (NC) extension of AdS-CFT correspondence that is manifested in the modification of behavior of a holographic superconductor. The noncom…
Particle on a torus knot: a Hamiltonian analysis
Praloy Das, Subir Ghosh
We have studied the dynamics and symmetries of a particle constrained to move in a torus knot. The Hamiltonian system turns out to be Second Class in Dirac's formulation and the Di…
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…
Conformal Invariance in noncommutative geometry and mutually interacting Snyder Particles
Souvik Pramanik, Subir Ghosh, Probir Pal
A system of relativistic Snyder particles with mutual two-body interaction that lives in a Non-Commutative Snyder geometry is studied. The underlying novel symplectic structure is…
Noncommutative Extension of AdS-CFT and Holographic Superconductors
Souvik Pramanik, Sudipta Das, Subir Ghosh
In this Letter, we consider a Non-Commutative (NC) extension of AdS-CFT correspondence and its effects on holographic superconductors. NC corrections are incorporated via the NC ge…
GUP-based and Snyder Non-Commutative Algebras, Relativistic Particle models and Deformed Symmetries: A Unified Approach
Souvik Pramanik, Subir Ghosh
We have developed a unified scheme for studying Non-Commutative algebras based on Generalized Uncertainty Principle (GUP) and Snyder form in a relativistically covariant point part…
Electrodynamics of a Generalized Charged Particle in Doubly Special Relativity Framework
Souvik Pramanik, Subir Ghosh, Probir Pal
In the present paper, dynamics of generalized charged particles are studied in the presence of external electromagnetic interactions. This particular extension of the free relativi…
Spontaneous Generation of a Crystalline Ground State in a Higher Derivative Theory
Subir Ghosh
The possibility of Spontaneous Symmetry Breaking in momentum space in a generic Lifshitz scalar model - a non-relativistic scalar field theory with higher spatial derivative terms…
"Stringy" Coherent States Inspired By Generalized Uncertainty Principle
Subir Ghosh, Pinaki Roy
In this Letter we have explicitly constructed Generalized Coherent States for the Non-Commutative Harmonic Oscillator that directly satisfy the Generalized Uncertainty Principle (G…
Constrained Dynamics of an Anomalous Relativistic Spinning Particle in Electromagnetic Background
A. Berard, Subir Ghosh, Y. Grandati +2
In this paper we have considered the dynamics of an anomalous () charged relativistic spinning particle in the presence of an external electromagnetic field. The constrain…
Black Hole Entropy: From Shannon to Bekenstein
Subir Ghosh
In this note we have applied directly the Shannon formula for information theory entropy to derive the Black Hole (Bekenstein-Hawking) entropy. Our analysis is semi-classical in na…
Towards a Discrete Spacetime
Sudipta Das, Subir Ghosh
A formalism is proposed to generate (the first step of) a discrete spacetime: spacetime with an inbuilt length scale. We follow the celebrated Landau theory of liquid - solid phase…
Noncommutative Spacetime in Very Special Relativity
Sudipta Das, Subir Ghosh, Salvatore Mignemi
Very Special Relativity (VSR) framework, proposed by Cohen and Glashow [1], demonstrated that a proper subgroup of the Poincaré group, (in particular ISIM(2)), is sufficient to des…
Planck Scale Effect in the Entropic Force Law
Subir Ghosh
In this note we generalize the quantum uncertainty relation proposed by Vancea and Santos [7] in the entropic force law, by introducing Planck scale modifications. The latter is in…
Quantum mechanics in de Sitter space
Subir Ghosh, Salvatore Mignemi
We consider some possible phenomenological implications of the extended uncertainty principle, which is believed to hold for quantum mechanics in de Sitter spacetime. The relative…
Topics in Noncommutative Geometry Inspired Physics
Rabin Banerjee, Biswajit Chakraborty, Subir Ghosh +2
In this review article we discuss some of the applications of noncommutative geometry in physics that are of recent interest, such as noncommutative many-body systems, noncommutati…
Relativistic Thermodynamics with an Invariant Energy Scale
Sudipta Das, Subir Ghosh, Dibakar Roychowdhury
A particular framework for Quantum Gravity is the Doubly Special Relativity (DSR) formalism that introduces a new observer independent scale, the Planck energy. Our aim in this pap…
The E(2) Particle
Subir Ghosh, And Probir Pal
Recently it has been advocated [1] that for describing nature within the minimal symmetry requirement, certain subgroups of Lorentz group may play a fundamental role. One such grou…