1.9k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- S.N. Bose National Centre for Basic SciencesIN60 papers
- Saha Institute of Nuclear PhysicsIN55 papers
- Indian Statistical Institute, Bangalore CentreIN51 papers
- Jadavpur UniversityIN41 papers
- University of CalcuttaIN39 papers
- Indian Institute of Science BangaloreIN35 papers
- Institute of Mathematical SciencesIN34 papers
- Indian Institute of Technology MadrasIN28 papers
- Bose InstituteIN27 papers
- Centre National de la Recherche ScientifiqueFR26 papers
- Indian Statistical Institute, Delhi CentreIN20 papers
- Tata Institute of Fundamental ResearchIN20 papers
67 papers · 1 filter
Fano type transparency and other multimode interference effects in all-dielectric nanoshells
Srishti Garg, Murugesan Venkatapathi
Recently, the coupling of two different modes of a homogeneous plasmonic particle and their sharply varying spectra were elucidated as Fano resonances; an 'interference' of two spa…
Diagnosis of single faults in quantum circuits
Debajyoti Bera, Subhamoy Maitra, Sparsa Roychowdhury +1
Detecting and isolating faults is crucial for synthesis of quantum circuits. Under the single fault assumption that is now routinely accepted in circuit fault analysis, we show tha…
Formal orbifolds and orbifold bundles in positive characteristic
Manish Kumar, A. J. Parameswaran
We define formal orbifolds over an algebraically closed field of arbitrary characteristic as curves together with some branch data. Their étale coverings and their fundamental grou…
An analysis of the zero energy states in graphene
P. Ghosh, P. Roy
Using the concept of complex non PT symmetric potential we study creation of zero energy states in graphene by a scalar potential. The admissible range of the potential parameter v…
Approximation algorithms for the two-center problem of convex polygon
Sanjib Sadhu, Sasanka Roy, Soumen Nandi +2
Given a convex polygon with vertices, the two-center problem is to find two congruent closed disks of minimum radius such that they completely cover . We propose an algo…
Linear-Time Fitting of a -Step Function
Binay Bhattacharya, Sandip Das, Tsunehiko Kameda
Given a set of weighted points on the - plane, we want to find a step function consisting of horizontal steps such that the maximum vertical weighted distance from an…
Gram-Schmidt-Vaserstein generators for odd sized elementary groups
Pratyusha Chattopadhyay, Ravi A. Rao
The Gram-Schmidt process of L.N. Vaserstein for making an elementary matrix symplectic yields a nice set of generators for the odd sized elementary group.
On oriented cliques with respect to push operation
Julien Bensmail, Soumen Nandi, Sagnik Sen
To push a vertex of a directed graph is to change the orientations of all the arcs incident with . An oriented graph is a directed graph without any cyc…
Bounds for the product of modified Bessel functions
Árpád Baricz, Dragana Jankov Maširević, Saminathan Ponnusamy +1
In this note our aim is to present some monotonicity properties of the product of modified Bessel functions of first and second kind. Certain bounds for the product of modified Bes…
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…
Concave univalent functions and Dirichlet finite integral
Y. Abu Muhanna, S. Ponnusamy
The article deals with the class consisting of non-vanishing functions that are analytic and univalent in $\ID$ such that the complement $\IC\backslash f(\ID…
Trace-distance measure of coherence
Swapan Rana, Preeti Parashar, Maciej Lewenstein
We show that trace distance measure of coherence is a strong monotone for all qubit and, so called, states. An expression for the trace distance coherence for all pure states a…
Metal-insulator transition in an one-dimensional half-filled interacting mesoscopic ring with spinless fermions: Exact results
Madhumita Saha, Santanu K. Maiti
We calculate persistent current of one-dimensional rings of fermions neglecting the spin degrees of freedom considering only nearest-neighbor Coulomb interactions with different el…
Harmonic and Timbre Analysis of Tabla Strokes
Anirban Patranabis, Kaushik Banerjee, Vishal Midya +5
Indian twin drums mainly bayan and dayan (tabla) are the most important percussion instruments in India popularly used for keeping rhythm. It is a twin percussion/drum instrument o…
Faithful actions of locally compact quantum groups on classical spaces
Debashish Goswami, Sutanu Roy
It is well-known that no non-Kac compact quantum group can faithfully act on for a classical, compact Hausdorff space . However, in this article we show that this is no l…
Circulating persistent current and induced magnetic field in a fractal network
Srilekha Saha, Santanu K. Maiti, S. N. Karmakar
We present the overall conductance as well as the circulating currents in individual loops of a Sierpinski gasket (SPG) as we apply bias voltage via the side attached electrodes. S…
Relativistic electron vortex beams in a laser field
Pratul Bandyopadhyay, Banasri Basu, Debashree Chowdhury
The orbital angular momentum Hall effect and spin Hall effect of electron vortex beams (EVB) have been studied for the EVBs interacting with laser field. In the scenario of paraxia…
Anomalous magnetic response of a quasi-periodic mesoscopic ring in presence of Rashba and Dresselhaus spin-orbit interactions
Moumita Patra, Santanu K. Maiti
We investigate the properties of persistent charge current driven by magnetic flux in a quasi-periodic mesoscopic Fibonacci ring with Rashba and Dresselhaus spin-orbit interactions…
Circular Symmetrization, Subordination and Arclength problems on Convex Functions
Mari Okada, Saminathan Ponnusamy, Allu Vasudevarao +1
We study the class of univalent analytic functions in the unit disk of the form $f(z)=z+\sum_{n=2}^{\infty}a_n z…
Extremes of some Gaussian random interfaces
Alberto Chiarini, Alessandra Cipriani, Rajat Subhra Hazra
In this article we give a general criterion for some dependent Gaussian models to belong to maximal domain of attraction of Gumbel, following an application of the Stein-Chen metho…
Inequality measures in kinetic exchange models of wealth distributions
Asim Ghosh, Arnab Chatterjee, Jun-ichi Inoue +1
In this paper, we study the inequality indices for some models of wealth exchange. We calculated Gini index and newly introduced k-index and compare the results with reported empir…
Effect of Perturbative Hexagonal Warping on Quantum Capacitance in Ultra-Thin Topological Insulators
Anirudha Menon, Debashree Chowdhury, Banasri Basu
Ultra-thin 3D topological insulators provide a stage to study the surface physics of such materials by minimizing the bulk contribution. Further, the experimentally verified snowfl…
On chromatic number of colored mixed graphs
Sandip Das, Soumen Nandi, Sagnik Sen
An -colored mixed graph is a graph with its arcs having one of the different colors and edges having one of the different colors. A homomorphism of an $(m,n)…
Kane model parameters and stochastic spin current
Debashree Chowdhury
The spin current and spin conductivity is computed through thermally driven stochastic process. By evaluating the Kramers equation and with the help of method we…