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
65 papers · 1 filter
Swarmalators on a ring with uncorrelated pinning
Gourab Kumar Sar, Kevin O'Keeffe, Dibakar Ghosh
We present a case study of swarmalators (mobile oscillators) which move on a 1D ring and are subject to pinning. Previous work considered the special case where the pinning in spac…
Pattern change of precipitation extremes in Bear Island
Arnob Ray, Tanujit Chakraborty, Athulya Radhakrishnan +4
Extreme precipitation in the Arctic region plays a crucial role in global weather and climate patterns. Bear Island (Bjørnøya) is located in the Norwegian Svalbard archipelago, whi…
Relation between broadcast domination and multipacking numbers on chordal and other hyperbolic graphs
Sandip Das, Florent Foucaud, Sk Samim Islam +1
For a graph with a vertex set and an edge set , a function is called a \emph{broadcast} on . For e…
Critical analysis of multiple reentrant localization in an antiferromagnetic helix with transverse electric field: Hopping dimerization-free scenario
Sudin Ganguly, Sourav Chattopadhyay, Kallol Mondal +1
Reentrant localization (RL), a recently prominent phenomenon, traditionally links to the interplay of staggered correlated disorder and hopping dimerization, as indicated by prior…
Algebraic aspects and functoriality of the set of affiliated operators
Indrajit Ghosh, Soumyashant Nayak
In this article, we aim to provide a satisfactory algebraic description of the set of affiliated operators for von Neumann algebras. Let be a von Neumann algebra acti…
Intersection and union of subspaces with applications to communication over authenticated classical-quantum channels and composite hypothesis testing
Naqueeb Ahmad Warsi, Ayanava Dasgupta
In information theory, we often use intersection and union of the typical sets to analyze various communication problems. However, in the quantum setting it is not very clear how t…
Achieving Maximum Utilization in Optimal Time for Learning or Convergence in the Kolkata Paise Restaurant Problem
Aniruddha Biswas, Antika Sinha, Bikas K. Chakrabarti
The objective of the KPR agents are to learn themselves in the minimum (learning) time to have maximum success or utilization probability (). A dictator can easily solve the pro…
Unprovability of First Maxwell's Equation in Light of EPR's Completeness Condition -- A Computational Approach from Logico-linguistic Perspective
Abhishek Majhi
Maxwell's verbal statement of Coulomb's experimental verification of his hypothesis, concerning force between two electrified bodies, is suggestive of a modification of the respect…
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…
Primordial magnetic non-Gaussianity with generic vacua and detection prospects in CMB spectral distortions
Arko Bhaumik, Supratik Pal
Assuming a slow-roll inflationary model where conformal invariance of the Maxwell action is broken via a non-minimal kinetic coupling term, we investigate the non-Gaussian three-po…
Algebraic properties of binomial edge ideals of Levi graphs associated with curve arrangements
Rupam Karmakar, Rajib Sarkar, Aditya Subramaniam
In this article, we study algebraic properties of binomial edge ideals of Levi graphs associated with certain plane curve arrangements. Using combinatorial properties of Levi graph…
FragQC: An Efficient Quantum Error Reduction Technique using Quantum Circuit Fragmentation
Saikat Basu, Arnav Das, Amit Saha +2
Quantum computers must meet extremely stringent qualitative and quantitative requirements on their qubits in order to solve real-life problems. Quantum circuit fragmentation techni…
Collective dynamics of swarmalators with higher-order interactions
Md Sayeed Anwar, Gourab Kumar Sar, Matjaz Perc +1
Higher-order interactions shape collective dynamics, but how they affect transitions between different states in swarmalator systems is yet to be determined. To that effect, we her…
Checking the second law at cosmic scales
Narayan Banerjee, Purba Mukherjee, Diego Pavón
Based on recent data about the history of the Hubble factor, it is argued that the second law of thermodynamics holds at the largest scales accessible to observation. This is consi…
Recursive Error Reduction for Regular Branching Programs
Eshan Chattopadhyay, Jyun-Jie Liao
In a recent work, Chen, Hoza, Lyu, Tal and Wu (FOCS 2023) showed an improved error reduction framework for the derandomization of regular read-once branching programs (ROBPs). Thei…
Block perturbation of symplectic matrices in Williamson's theorem
Gajendra Babu, Hemant K. Mishra
Williamson's theorem states that for any real positive definite matrix , there exists a real symplectic matrix such that , wh…
Stabbing boxes with finitely many axis-parallel lines and flats
Sutanoya Chakraborty, Arijit Ghosh, Soumi Nandi
In this short note, we provide the necessary and sufficient condition for an infinite collection of axis-parallel boxes in to be pierceable by finitely many axis-p…
Confronting global 21-cm signal with symmetric dark matter models
Debarun Paul, Antara Dey, Amit Dutta Banik +1
While the symmetric dark matter models have shown tremendous prospects in addressing a number of (astro-)particle physics problems, they can leave interesting imprin…
On the Construction of Near-MDS Matrices
Kishan Chand Gupta, Sumit Kumar Pandey, Susanta Samanta
The optimal branch number of MDS matrices makes them a preferred choice for designing diffusion layers in many block ciphers and hash functions. However, in lightweight cryptograph…
Kinetic Models of Wealth Distribution Having Extreme Inequality: Numerical Study of Their Stability Against Random Exchanges
Asim Ghosh, Suchismita Banerjee, Sanchari Goswami +2
In view of some persistent recent reports on a singular kind of growth of the world wealth inequality, where a finite (often handful) number of people tend to possess more than the…
Orderings of extremes among dependent extended Weibull random variables
Ramkrishna Jyoti Samanta, Sangita Das, N. Balakrishnan
In this work, we consider two sets of dependent variables and , where and $Y_{i}\sim EW(β_{i},μ_{…
Fano resonances in tilted Weyl semimetals in an oscillating quantum well
Souvik Das, Arnab Maity, Rajib Sarkar +3
Considering the low-energy model of tilted Weyl semimetal, we study the electronic transmission through a periodically driven quantum well, oriented in the transverse direction wit…
Analysis of the rSVDdpd Algorithm: A Robust Singular Value Decomposition Method using Density Power Divergence
Subhrajyoty Roy, Abhik Ghosh, Ayanendranath Basu
The traditional method of computing singular value decomposition (SVD) of a data matrix is based on a least squares principle, thus, is very sensitive to the presence of outliers.…
Imprints of dark matter-massive neutrino interaction in upcoming post-reionization and galaxy surveys
Antara Dey, Arnab Paul, Supratik Pal
We explore possible signatures of the interaction between dark matter (DM) and massive neutrinos during the post-reionization epoch. Using both Fisher matrix forecast analysis and…