159 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Ramakrishna Mission Vivekananda Educational and Research InstituteIN65 papers
- Rutherford Appleton LaboratoryGB17 papers
- University of JohannesburgZA16 papers
- S.N. Bose National Centre for Basic SciencesIN10 papers
- Indian Institute of Technology KanpurIN8 papers
- The Abdus Salam International Centre for Theoretical Physics (ICTP)IT8 papers
- Ramakrishna Mission Residential CollegeIN6 papers
- Saha Institute of Nuclear PhysicsIN6 papers
- Chinese Academy of SciencesCN5 papers
- Homi Bhabha National InstituteIN5 papers
- Indian Institute of Technology KharagpurIN5 papers
- Indian Statistical InstituteIN5 papers
21 papers · 1 filter
Static spherically symmetric wormhole with quadratic shape function and particle trajectories around it
Bikram Ghosh, Sourav Dutta, Sudeshna Mukerji +1
The paper deals with static traversable wormhole having shape function a polynomial of the radial coordinate of degree 2. Embedding of the wormholes in space-time is examined both…
Superconductivity in the layered cage compound Ba3Rh4Ge16
Yi Zhao, Jun Deng, A. Bhattacharyya +9
We report the synthesis and superconducting properties of a layered cage compound Ba3Rh4Ge16. Similar to Ba3Ir4Ge16, the compound is composed of 2D networks of cage units, formed b…
Spectral triple with real structure on fuzzy sphere
Anwesha Chakraborty, Partha Nandi, Biswajit Chakraborty
Here we have illustrated the construction of a real structure on fuzzy sphere in its spin-1/2 representation. Considering the SU(2) covariant Dirac and chirality operator o…
COVID-19 Face Mask Recognition with Advanced Face Cut Algorithm for Human Safety Measures
Arkaprabha Basu, Md Firoj Ali
In the last year, the outbreak of COVID-19 has deployed computer vision and machine learning algorithms in various fields to enhance human life interactions. COVID-19 is a highly c…
A new shape function and some specific wormhole solutions in braneworld scenario
Bikram Ghosh, Saugata Mitra
Considering a energy density of the form ( where is an arbitrary positive constant with dimension of energy density and ), a shape fu…
Wormhole solutions in gravity theory for Chaplygin gas scenario
Bikram Ghosh, Saugata Mitra
The present paper deals with some wormhole solutions which are obtained by taking two different shape functions along with zero tidal force. For obtaining wormhole solutions, aniso…
The Sakaguchi-Kuramoto model in presence of asymmetric interactions that break phase-shift symmetry
M. Manoranjani, Shamik Gupta, V. K. Chandrasekar
The celebrated Kuramoto model provides an analytically tractable framework to study spontaneous collective synchronization and comprises globally coupled limit-cycle oscillators in…
Some specific wormhole solutions in -modified gravity theory
Bikram Ghosh, Saugata Mitra, Subenoy Chakraborty
The paper deals with the static spherically symmetric wormhole solutions in -modified gravity theory with anisotropic matter field and for some particular choices for the sha…
Dynamical analysis of -essence cosmology in the light of Supernova Ia observations
Anirban Chatterjee, Abhijit Bandyopadhyay, Biswajit Jana
In this paper, we analyse the JLA data on Supernova observations in the context of essence dark energy model with Lagrangian , with a constant potential and the dy…
Quantum coherence, correlations and nonclassical states in the two-qubit Rabi model with parametric oscillator
V. Yogesh, Prosenjit Maity
Quantum coherence and quantum correlations are studied in the strongly interacting system composed of two qubits and an oscillator with the presence of a parametric medium. To anal…
A crossover from Kondo semiconductor to metallic antiferromagnet with -electron doping in CeFeAl
Rajesh Tripathi, D. T. Adroja, M. R. Lees +12
We report a systematic study of the -electron-doped system Ce(FeIr)Al (). With increasing , the orthorhombic ~axis decreases sl…
State-dependent driving: A route to non-equilibrium stationary states
Soumen Das, Shankar Ghosh, Shamik Gupta
We study three different experiments that involve dry friction and periodic driving, and which employ both single and many-particle systems. These experimental set-ups, besides pro…
Quantum unitary evolution interspersed with repeated non-unitary interactions at random times: The method of stochastic Liouville equation, and two examples of interactions in the context of a tight-binding chain
Debraj Das, Sushanta Dattagupta, Shamik Gupta
In the context of unitary evolution of a generic quantum system interrupted at random times with non-unitary evolution due to interactions with either the external environment or a…
Stochastic resetting: A (very) brief review
Shamik Gupta, Arun M. Jayannavar
Stochastic processes offer a fundamentally different paradigm of dynamics than deterministic processes, the most prominent example of the latter being Newton's laws of motion. Here…
Effect of binding energies on the encounter desorption
Ankan Das, Milan Sil, Rana Ghosh +4
The abundance of interstellar ice constituents is usually expressed with respect to the water ice because, in denser regions, a significant portion of the interstellar grain surfac…
Quantum random walk and tight-binding model subject to projective measurements at random times
Debraj Das, Shamik Gupta
What happens when a quantum system undergoing unitary evolution in time is subject to repeated projective measurements to the initial state at random times? A question of general i…
Dynamic Spin Fluctuations in the Frustrated Spin Chain Compound LiCuSbO
A. Bhattacharyya, T. K. Bhowmik, D. T. Adroja +9
We report the signatures of dynamic spin fluctuations in the layered honeycomb LiCuSbO compound, with a 3 S = 1/2 Cu configuration, through muon spin ro…
Electron-phonon superconductivity in C-doped topological nodal-line semimetal ZrPt: A muon spin rotation and relaxation (SR) study
A Bhattacharyya, P P Ferreira, K Panda +6
In the present work we demonstrate that C-doped ZrPt is an electron-phonon superconductor (with critical temperature T = 3.7\,K) with a nonsymmorphic topol…
An overview of generalized entropic forms
V. Ilić, J. Korbel, S. Gupta +1
The aim of this focus letter is to present a comprehensive classification of the main entropic forms introduced in the last fifty years in the framework of statistical physics and…
Virasoro algebras, kinematic space and the spectrum of modular Hamiltonians in CFT
Suchetan Das, Bobby Ezhuthachan, Somnath Porey +1
We construct an infinite class of eigenmodes with integer eigenvalues for the Vacuum Modular Hamiltonian of a single interval in 2d CFT and study some of its interesting proper…
Probing the superconducting gap structure in the noncentrosymmetric topological superconductor ZrRuAs
Debarchan Das, D. T. Adroja, M. R. Lees +11
The superconducting gap structure of a topological crystalline insulator (TCI) candidate ZrRuAs ( = 7.9(1) K) with a noncentrosymmetric crystal structure has be…