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Van der Waals criticality in AdS black holes: a phenomenological study

- Krishnakanta Bhattacharya, Bibhas Ranjan Majhi, S. Samanta
- Physics
- 8 September 2017

AdS black holes exhibit van der Waals type phase transition. In the {\it extended} phase-space formalism, the critical exponents for any spacetime metric are identical to the standard ones. Motivated… Expand

Thermogeometric description of the van der Waals like phase transition in AdS black holes

- Krishnakanta Bhattacharya, Bibhas Ranjan Majhi
- Physics
- 23 February 2017

It is well known that interpreting the cosmological constant as the pressure, the AdS black holes behave as the van der Waals thermodynamic system. In this case, like a phase transition from vapor to… Expand

Fresh look at the scalar-tensor theory of gravity in Jordan and Einstein frames from undiscussed standpoints

- Krishnakanta Bhattacharya, Bibhas Ranjan Majhi
- Physics
- 23 February 2017

We study the scalar-tensor theory of gravity profoundly in the action level as well as in the thermodynamic level. Contrary to the usual description in the literature about the equivalence in the two… Expand

General framework to study the extremal phase transition of black holes

- Krishnakanta Bhattacharya, S. Dey, Bibhas Ranjan Majhi, S. Samanta
- PhysicsPhysical Review D
- 8 March 2019

We investigate the universality of some features for the extremal phase transition of black holes and unify all the approaches which have been applied in different spacetimes. Unlike the other… Expand

Temperature and thermodynamic structure of Einstein's equations for a cosmological black hole

- Krishnakanta Bhattacharya, Bibhas Ranjan Majhi
- Physics
- 25 February 2016

It is expected that the cosmological black holes are the closest realistic solutions of gravitational theories and they evolve with time. Moreover, the natural way of defining thermodynamic entities… Expand

Fluctuation-dissipation relation in accelerated frames

- A. Adhikari, Krishnakanta Bhattacharya, Chandramouli Chowdhury, Bibhas Ranjan Majhi
- Physics
- 5 July 2017

An uniformly accelerated (Rindler) observer will detect particles in the Minkowski vacuum, known as Unruh effect. The spectrum is thermal and the temperature is given by that of the Killing horizon,… Expand

Noether and Abbott-Deser-Tekin conserved quantities in scalar-tensor theory of gravity both in Jordan and Einstein frames

- Krishnakanta Bhattacharya, Ashmita Das, Bibhas Ranjan Majhi
- PhysicsPhysical Review D
- 10 March 2018

We revisit the thermodynamic aspects of the scalar-tensor theory of gravity in the Jordan and in the Einstein frame. Examining the {\it missing links} of this theory carefully, we establish the… Expand

Noncommutative Heisenberg algebra in the neighbourhood of a generic null surface

- Krishnakanta Bhattacharya, Bibhas Ranjan Majhi
- PhysicsNuclear Physics B
- 8 February 2018

Abbott–Deser–Tekin like conserved quantities in Lanczos–Lovelock gravity: beyond Killing diffeomorphisms

- Krishnakanta Bhattacharya, Bibhas Ranjan Majhi
- PhysicsClassical and Quantum Gravity
- 14 June 2018

We obtain the conserved Abbott-Deser-Tekin (ADT)-{\it like} current for the Lanczos-Lovelock gravity for a diffeomorphism vector, which defines the horizon of a spacetime and, importantly, is not… Expand

Noether and ADT conserved quantities in scalar-tensor theory of gravity both in Jordon and Einstein frames

- Krishnakanta Bhattacharya, Ashmita Das, Bibhas Ranjan Majhi
- Physics
- 10 March 2018

We revisit the thermodynamic aspects of the scalar-tensor theory of gravity in Jordan and Einstein frame. Examining the {\it missing links} of this theory carefully, we establish the thermodynamic… Expand

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