68 citations
6 papers
Accretion disks around a static black hole in gravity
Saheb Soroushfar, Sudhaker Upadhyay
We provide a description of a thin accretion disc for a static spherically symmetric black holes in gravity. In this regard, we first study the horizons of black holes in $f…
Phase transition of a charged AdS black hole with a global monopole through geometrical thermodynamics
Saheb Soroushfar, Sudhaker Upadhyay
In order to study the phase transition through thermodynamic geometry, we consider the charged AdS black hole with global monopole. We first introduce thermodynamics of charged AdS…
Soft-Collinear Effective Theory: BRST Formulation
Sudhaker Upadhyay, Bhabani Prasad Mandal
We provide a systematic BRST formalism for the soft-collinear effective theory describing interactions of soft and collinear degrees of freedom in the presence of a hard interactio…
Perturbed thermodynamics of charged black hole solution in Rastall theory
Behnam Pourhassan, Sudhaker Upadhyay
We study the thermodynamics of a charged black hole surrounded by a perfect fluid in Rastall theory and investigate three different cases of quintessence, dust and radiation fields…
Thermodynamic geometry of a black hole surrounded by perfect fluid in Rastall theory
Saheb Soroushfar, Reza Saffari, Sudhaker Upadhyay
In this paper, we study thermodynamics and thermodynamic geometry of a black hole surrounded by the perfect fluid in Rastall theory. In particular, we calculate the physical quanti…
Lorentz-violating gaugeon formalism for rank-2 tensor theory
Sudhaker Upadhyay, Mushtaq B. Shah, Prince A. Ganai
We develop a BRST symmetric gaugeon formalism for the Abelian rank-2 antisymmetric tensor field in the Lorentz breaking framework. The Lorentz breaking is achieved here by consider…