27 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Inter-University Centre for Astronomy and AstrophysicsIN5 papers
- S.N. Bose National Centre for Basic SciencesIN4 papers
- GLA UniversityIN3 papers
- North Bengal UniversityIN3 papers
- Raiganj UniversityIN3 papers
- Bose InstituteIN2 papers
- Harish-Chandra Research InstituteIN2 papers
- Justus-Liebig-Universität GießenDE2 papers
- Barasat Government College1 paper
- Canadian Nautical Research SocietyCA1 paper
- Care Institute of Medical SciencesIN1 paper
- Center for Pastor TheologiansUS1 paper
24 papers
Probing the Phenomenology of Dark Matter from Decoupled Freeze-Out
Geneviève Bélanger, Aoife Bharucha, Sreemanti Chakraborti +2
We consider a model of dark matter where the mediator corresponds to a superposition of a scalar and pseudoscalar, and the scenario where, after reheating, the number densities of…
Maximum mass limit of strange stars in quadratic curvature-matter coupled gravity
Debadri Bhattacharjee, Pradip Kumar Chattopadhyay, Kazuharu Bamba
We explore the maximum mass limit of strange stars in quadratic curvature gravity with the non-minimal matter coupling. The characteristic parameters of the quadratic curvature cou…
Charged gravastar model in Rastall theory of gravity
Debadri Bhattacharjee, Pradip Kumar Chattopadhyay
Gravastars are considered as one of the prime exotic type compact objects which may be found at the end state of gravitational collapse of massive stars with a view to resolve the…
Maximum mass of an anisotropic compact object admitting the modified Chaplygin equation of state in Buchdahl-I metric
D. Bhattacharjee, P. K. Chattopadhyay
In this article, a new class of exact solutions for anisotropic compact objects is presented. Admitting the modified Chaplygin equation of state , where ,…
Quantum Nonlocality: Multi-copy Resource Inter-convertibility & Their Asymptotic Inequivalence
Subhendu B. Ghosh, Snehasish Roy Chowdhury, Guruprasad Kar +3
Quantum nonlocality, pioneered in Bell's seminal work and subsequently verified through a series of experiments, has drawn substantial attention due to its practical applications i…
Leading-order corrections to the thermodynamics of Rindler modified Schwarzschild black hole
Surajit Mandal, Surajit Das, Dhruba Jyoti Gogoi +1
In this work, we present a thermodynamical study of a Rindler modified Schwarzschild black hole under the consideration of small thermal fluctuations. In particular, we compute var…
Reconstruction of gravity model via the Raychaudhuri equation
Arijit Panda, Surajit Das, Goutam Manna +1
In this work, we investigate for an analytical solution under modified gravity theory, specifically the gravity for two different eras, i.e., matter and dark energy domina…
Properties of relativistic star in 5-D Einstein-Gauss-Bonnet gravity
Soumik Bhattacharya, Suntharalingam Thirukkanesh, Ranjan Sharma
In recent years, there has been a growing interest in stellar modelling in the framework of Einstein-Gauss-Bonnet gravity. In this paper, for a relativistic star in static equilibr…
Stable Charged Gravastar model in Cylindrically Symmetric Space-time
D. Bhattacharjee, P. K. Chattopadhyay
In this paper, we have extended the idea of gravitational Bose-Einstein condensate star (gravastar) to charged gravastar system and explored the role of charge in gravastar formati…
Raychaudhuri equation in -essence geometry: conditional singular and non-singular cosmological models
Surajit Das, Arijit Panda, Goutam Manna +1
We investigate how the Raychaudhuri equation behaves in the -essence geometry. As far as we are concerned, both the early and current epochs of the universe are relevant to the…
Stable Gravastar model in Cylindrically Symmetric Space-time
D. Bhattacharjee, P. K. Chattopadhyay, B. C. Paul
We represent a class of new Gravastar solutions as obtained by Mazur and Mottola in a gravitational Bose-Einstein condensate (GBEC) in a cylindrical symmetric space-time. A stable…
Exploration of In-Medium Hyperon-Nucleon Interactions
Madhumita Dhar, Horst Lenske
The study focuses on exploring the changes in the hyperon-baryon interaction at various nuclear densities. This approach starts by building a vacuum hyperon-nucleon interaction mod…
SU(3)_f Constraints on Hypernuclear Energy Density Functionals
Horst Lenske, Madhumita Dhar
A covariant hyper-nuclear energy density functional (EDF) is derived from in medium nucleon meson vertex functionals, assuring the proper description of nuclear mean-field dynamics…
Distilling Nonlocality in Quantum Correlations
Sahil Gopalkrishna Naik, Govind Lal Sidhardh, Samrat Sen +3
Nonlocality, as established by seminal Bell's theorem, is considered to be the most striking feature of correlations present in space like separated events. Its practical applicati…
Cosmological effects on gravity through a non-standard theory
Arijit Panda, Saibal Ray, Goutam Manna +2
This study aims to investigate the impact of dark energy in cosmological scenarios by exploiting gravity within the framework of a {\it non-standard} theory, c…
Creating quantum correlations in generalized entanglement swapping
Pratapaditya Bej, Arkaprabha Ghosal, Arup Roy +2
We study how different types of quantum correlations can be established as the consequence of a generalized entanglement swapping protocol where starting from two Bell pairs (1, 2)…
Energy momentum tensor of a non-minimally coupled scalar from the equivalence of the Einstein and Jordan frames
Sk. Moinuddin, Pradip Mukherjee, Anirban Saha +1
Unlike the minimally coupled gravity theory where matter is coupled with gravity in such a manner so that one can differentiate the matter and gravity sector uniquely, the non-mini…
Anisotropic generalization of Buchdahl bound for specific stellar models
Ranjan Sharma, Arpita Ghosh, Soumik Bhattacharya +1
Anisotropy is one factor that appears to be significantly important in the studies of relativistic compact stars. In this paper, we make a generalization of the Buchdahl limit by i…
Ability of unbounded pairs of observers to achieve quantum advantage in random access codes with a single pair of qubits
Debarshi Das, Arkaprabha Ghosal, Ananda G. Maity +2
Complications in preparing and preserving quantum correlations stimulate recycling of a single quantum resource in information processing and communication tasks multiple times. He…
Gravitational collapse of anisotropic stars
Shyam Das, Bikash Chandra Paul, Ranjan Sharma
We study the gravitational collapse of a spherically symmetric anisotropic relativistic star within Einstein theory of gravity making use of one of our recently developed collapsin…
Electromagnetic and anisotropic extension of a plethora of well-known solutions describing relativistic compact objects
K. Komathiraj, Ranjan Sharma
We demonstrate a technique to generate new class of exact solutions to the Einstein-Maxwell system describing a static spherically symmetric relativistic star with anisotropic matt…
Revisiting Vaidya-Tikekar stellar model in the linear regime
Ranjan Sharma, Shyam Das, Megan Govender +1
We obtain a new class of solutions by revisiting the Vaidya-Tikekar stellar model in the linear regime. Making use of the Vaidya and Tikekar metric ansatz [J. Astrophys. Astron. {\…
An electromagnetic extension of the Schwarzschild interior solution and the corresponding Buchdahl limit
Ranjan Sharma, Naresh Dadhich, Shyam Das +1
We wish to construct a model for charged star as a generalization of the uniform density Schwarzschild interior solution. We employ the Vaidya and Tikekar ansatz [{\it Astrophys. A…
Determination of the mass and energy of primary cosmic rays above 100 TeV
R. K. Dey, S. Dam, S. Ray +2
This analysis aims to determine the mass composition and energy of cosmic rays at energies above 100 TeV based on the lateral distribution of extensive air showers. Here, we propos…