1.7k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Tata Institute of Fundamental ResearchIN874 papers
- Centre National de la Recherche ScientifiqueFR832 papers
- California Institute of TechnologyUS802 papers
- University of Maryland, College ParkUS798 papers
- Cornell UniversityUS796 papers
- Saha Institute of Nuclear PhysicsIN796 papers
- University of AntwerpBE796 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di TorinoIT794 papers
- National Central UniversityTW794 papers
- University of WarsawPL794 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di Milano BicoccaIT793 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di TriesteIT793 papers
32 papers · 1 filter
A survey for HI in the distant Universe: the detection of associated 21-cm absorption at z=1.28
S. J. Curran, M. T. Whiting, A. Tanna +3
We have undertaken a survey for HI 21-cm absorption within the host galaxies of z ~ 1.2 - 1.5 radio sources, in the search of the cool neutral gas currently "missing" at z > 1. Thi…
The Scattering amplitude for Newly found exactly solvable Potential
Rajesh Kumar Yadav, Avinash Khare, Bhabani Prasad Mandal
The scattering amplitude for the recently discovered exactly solvable shape invariant potential, which is isospectral to the generalized Pöschl-Taylor potential, is calculated expl…
Similarity of matrices over local rings of length two
Amritanshu Prasad, Pooja Singla, Steven Spallone
Let be a local principal ideal ring of length two, for example, the ring with prime. In this paper we develop a theory of normal forms for similarity classes i…
Spatial and Temporal Sensing Limits of Microtubule Polarization in Neuronal Growth Cones by Intracellular Gradients and Forces
Saurabh Mahajan, Chaitanya A. Athale
Neuronal growth cones are the most sensitive amongst eukaryotic cells in responding to directional chemical cues. Although a dynamic microtubule cytoskeleton has been shown to be e…
Violation of Entropic Leggett-Garg Inequality in Nuclear Spins
Hemant Katiyar, Abhishek Shukla, Rama Koteswara Rao +1
We report an experimental study of recently formulated entropic Leggett-Garg inequality (ELGI) by Usha Devi et al. (arXiv: 1208.4491v2 (2012)). This inequality places a bound on th…
Low frequency follow up of radio halos and relics in the GMRT Radio Halo Cluster Survey
Tiziana Venturi, Simona Giacintucci, Daniele Dallacasa +4
We performed GMRT low frequency observations of the radio halos, relics and new candidates belonging to the GMRT Radio Halo Cluster Sample first observed at 610 MHz. High sensitivi…
Can solar wind viscous drag account for CME deceleration?
Prasad Subramanian, Alejandro Lara, Andrea Borgazzi
The forces acting on solar Coronal Mass Ejections (CMEs) in the interplanetary medium have been evaluated so far in terms of an empirical drag coefficient that q…
Ratios of periods for tensor product motives
Chandrasheel Bhagwat, A. Raghuram
In this article we prove some period relations for the ratio of Deligne's periods for certain tensor product motives. These period relations give a motivic interpretation for certa…
A new tuning fork-based instrument for oscillatory shear rheology of nano-confined liquids
Karan Kapoor, Vinod Kanawade, Vibham Shukla +1
We present a new method to measure rheological response of liquids confined to nano-scale which exhibit a considerable slow-down in dynamics compared to bulk liquids. The method re…
Spinor helicity structures in higher spin theories
Sudarshan Ananth
It is shown that the coefficient of the cubic interaction vertex, in higher spin Lagrangians, has a very simple form when written in terms of spinor helicity products. The result f…
On the nature of Off-pulse emission from pulsars
Rahul Basu, Dipanjan Mitra, Ramana Athreya
In Basu et al. 2011 we reported the detection of Off-pulse emission from two long period pulsars B0525+21 and B2045-16. The pulsars were observed at a single epoch using the 325 MH…
Temperature dependent reversal of voltage modulated light emission and negative capacitance in AlGaInP based multi quantum well light emitting devices
Kanika Bansal, Shouvik Datta
We report a reversal in negative capacitance and voltage modulated light emission from AlGaInP based multi-quantum well electroluminescent diodes under temperature variation. Unlik…
Directionally asymmetric self-assembly of cadmium sulfide nanotubes using porous alumina nanoreactors: Need for chemohydrodynamic instability at the nanoscale
Arthur Varghese, Shouvik Datta
We explore nanoscale hydrodynamical effects on synthesis and self-assembly of cadmium sulfide nanotubes oriented along one direction. These nanotubes are synthesized by horizontal…
A naked singularity stable under scalar field perturbations
Amruta Sadhu, V. Suneeta
We prove the stability of a spacetime with a naked singularity under scalar field perturbations, where the perturbations are regular at the singularity. This spacetime, found by Ja…
Novel symmetries in N = 2 supersymmetric quantum mechanical models
R. P. Malik, Avinash Khare
We demonstrate the existence of a novel set of discrete symmetries in the context of N = 2 supersymmetric (SUSY) quantum mechanical model with a potential function f(x) that is a g…
Nonlinear Dirac equation solitary waves in external fields
Franz G. Mertens, Niurka R. Quintero, Fred Cooper +2
We consider the nonlinear Dirac equations (NLDE's) in 1+1 dimension with scalar-scalar self interaction $\frac{g^2}{κ+1} ({\bPsi} Ψ)^{κ+1}$ in the presence of various external elec…
Commensurability and representation equivalent arithmetic lattices
Chandrasheel Bhagwat, Supriya Pisolkar, C. S. Rajan
Gopal Prasad and A. S. Rapinchuk defined a notion of weakly commensurable lattices in a semisimple group, and gave a classification of weakly commensurable Zariski dense subgroups.…
Recurrent radio outbursts at the center of the NGC1407 galaxy group
Simona Giacintucci, Ewan O'Sullivan, Tracy E. Clarke +6
We present deep Giant Metrewave Radio Telescope (GMRT) radio observations at 240, 330 and 610 MHz of the complex radio source at the center of the NGC1407 galaxy group. Previous GM…
Gray Image extraction using Fuzzy Logic
Koushik Mondal, Paramartha Dutta, Siddhartha Bhattacharyya
Fuzzy systems concern fundamental methodology to represent and process uncertainty and imprecision in the linguistic information. The fuzzy systems that use fuzzy rules to represen…
A shape optimization problem for the -Laplacian
Anisa Chorwadwala, Rajesh Mahadevan
It is known that the torsional rigidity for a punctured ball, with the puncture having the shape of a ball, is minimum when the balls are concentric and the first eigenvalue for th…
Local implementations of non-local quantum gates in linear entangled channel
Debashis Saha, Sanket Nandan, Prasanta K. Panigrahi
In this paper, we demonstrate n-party controlled unitary gate implementations locally on arbitrary remote state through linear entangled channel where control parties share entangl…
Stabilizing biological populations and metapopulations by Adaptive Limiter Control
Pratha Sah, Joseph Paul Salve, Sutirth Dey
Despite great interest in techniques for stabilizing the dynamics of biological populations and metapopulations, very few practicable methods have been developed. We propose an eas…
Stability analysis of the Witten black hole (cigar soliton) under world-sheet RG flow
Carolyn Lambert, Vardarajan Suneeta
We analyze the stability of the Euclidean Witten black hole (the cigar soliton in mathematics literature) under first-order RG (Ricci) flow of the world-sheet sigma model. This ana…
On the influence of nanometer-thin antiferromagnetic surface layer on ferromagnetic CrO
Pintu Das, Ashna Bajpai, Yuzo Ohno +2
We present magnetic stray field measurements performed on a single micro-crystal of the half metallic ferromagnet CrO, covered by a naturally grown 2\,-\,5\,nm surface layer of…