Research Breakthroughs


Name of the Institute Title Description URL Release Date Developed By Status
IIT Indore Time Evolution of Temperature Fluctuation in a Non-Equilibriated System Typically physical systems have temperature associated with them. However, more ... July 1st 2016 Prasant Kumar Samantray

Research Breakthrough Details

Name of the Institute IIT Indore
Title Time Evolution of Temperature Fluctuation in a Non-Equilibriated System
URL
Release Date July 1st 2016
Developed By Prasant Kumar Samantray

Typically physical systems have temperature associated with them. However, more often than not there are patches of physical regions of the system having different temperatures, i.e. the system is out of equilibrium because of fluctuations in temperature from certain mean value. For such systems, we develop a formalism to study the time-evolution of such fluctuations, and observe that our model fits the heavy ion collisions (like the ones produced in the Large Hadron Collider experiments) data remarkably well. [Developed by Prasant Samantray]

IIT Indore Clusters of galaxies and the cosmic web with SKA With SKAIC partners, we explore the prospects of studying acceleration of partic... July 1st 2015 Siddarth S. Malu
Abhirup Datta

Research Breakthrough Details

Name of the Institute IIT Indore
Title Clusters of galaxies and the cosmic web with SKA
URL
Release Date July 1st 2015
Developed By Siddarth S. Malu
Abhirup Datta

With SKAIC partners, we explore the prospects of studying acceleration of particles in the largest structures in the universe [Developed by Siddharth Malu, Abhirup Datta + SKAIC collaborators]

IIT Indore Probing individual sources during reionization and cosmic dawn using SKA HI 21-cm observations In this work, the prospects of detection of individual cosmic stromgren sphere f... July 1st 2015 Abhirup Datta

Research Breakthrough Details

Name of the Institute IIT Indore
Title Probing individual sources during reionization and cosmic dawn using SKA HI 21-cm observations
URL
Release Date July 1st 2015
Developed By Abhirup Datta

In this work, the prospects of detection of individual cosmic stromgren sphere from Epoch of Reionzation and Cosmic Dawn with the SKA is investigated. [Developed by Abhirup Datta + SKAIC collaborators]

IIT Indore Line of sight anisotropies in the Cosmic Dawn and EoR 21-cm power spectrum In this work, the effects of the line of sight anisotropies on the detection of ... July 1st 2015 Abhirup Datta

Research Breakthrough Details

Name of the Institute IIT Indore
Title Line of sight anisotropies in the Cosmic Dawn and EoR 21-cm power spectrum
URL
Release Date July 1st 2015
Developed By Abhirup Datta

In this work, the effects of the line of sight anisotropies on the detection of neutral hydrogen redshifted 21cm power spectrum are investigated. It should be noted that the detection HI 21cm signal from Epoch of Reionization and Cosmic Dawn remains the last phase of structure formation that has to be understood. This is also the key science goal for upcoming international telescope Square Kilometer Array (SKA), of which India is a partner. [Developed by Abhirup Datta + SKAIC collaborators]

IIT Indore First detection at 5.5 and 9 GHz of the radio relics in bullet cluster with ATCA The Bullet cluster of galaxies is a collision between two galaxy clusters, which... July 1st 2015 Siddarth S. Malu
Abhirup Datta

Research Breakthrough Details

Name of the Institute IIT Indore
Title First detection at 5.5 and 9 GHz of the radio relics in bullet cluster with ATCA
URL
Release Date July 1st 2015
Developed By Siddarth S. Malu
Abhirup Datta

The Bullet cluster of galaxies is a collision between two galaxy clusters, which contain superheated plasma millions of light years across, at hundreds of millions of degrees centigrade, albeit at densities pentillions of times lower than air. The shock front due to this merger event has caused the relativistic plasma to be transported hundreds of thousands of light years away from the merging centre. By studying the properties of this merger, we probed Magnetohydrodynamic turbulence in extreme conditions at high frequencies, which has significant implications for fluid dynamics and plasma physics.[Developed by Siddharth Malu, Abhirup Datta, Pritpal Sandhu]

IIT Indore Effects Of The Ionosphere On Ground-Based Detection Of The Global 21 CM Signal From The Cosmic Dawn And The Dark Ages Detection of the global HI 21 cm signal from Cosmic Dawn and Epoch of Reionizati... July 1st 2015 Abhirup Datta

Research Breakthrough Details

Name of the Institute IIT Indore
Title Effects Of The Ionosphere On Ground-Based Detection Of The Global 21 CM Signal From The Cosmic Dawn And The Dark Ages
URL
Release Date July 1st 2015
Developed By Abhirup Datta

Detection of the global HI 21 cm signal from Cosmic Dawn and Epoch of Reionization is the key science driver for several ongoing ground-based (e.g. EDGES, SciHI, BIGHORNS) and future ground/space-based experiments (DARE). The crucial spectral features in the global 21 cm signal (turning points) occur at low radio frequencies <100 MHz. In addition to the human-generated RFI, Earth's ionosphere drastically corrupts low-frequency radio observations from the ground. In this work, we have examined the effects of time-varying ionospheric refraction, absorption and thermal emission at these low radio frequencies and their combined effect on any ground-based global 21 cm experiment. It should be noted that this is the first study of the effect of a dynamic ionosphere on global 21 cm experiments. The fluctuations in the ionosphere are influenced by solar activity with flicker noise characteristics. The same characteristics are reflected in the ionospheric corruption to any radio signal passing through the ionosphere. As a result, any ground based observations of the faint global 21 cm signal are corrupted by flicker noise. Hence, the calibration of the ionosphere for any such experiment is critical. Any attempt to calibrate the ionospheric effects will be subject to the inaccuracies in the current ionospheric measurements using GPS ionospheric measurements, riometer measurements, ionospheric soundings, etc. Even considering an optimistic improvement in the accuracy of GPS-TEC (Total Electron Content) measurements, we conclude that the detection of the global 21 cm signal below 100 MHz is best done from above the Earth's atmosphere in orbit of the Moon. [Developed by Abhirup Datta (lead author) + collaborators]

IIT Indore Unique Stability Point in Social Storage Networks We model social storage systems as a strategic network formation game. We, then,... http://arxiv.org/abs/1603.07689 January 1st 2015 Kapil Ahuja

Research Breakthrough Details

Name of the Institute IIT Indore
Title Unique Stability Point in Social Storage Networks
URL http://arxiv.org/abs/1603.07689
Release Date January 1st 2015
Developed By Kapil Ahuja

We model social storage systems as a strategic network formation game. We, then, present the pairwise stability concept adapted for social storage where both addition and deletion of links require mutual consent, as compared to mutual consent just for link addition in the pairwise stability concept defined by Jackson and Wolinsky. We provide necessary and sufficient conditions for pairwise stability of social storage networks. [Developed by Pramod Mane, Kapil Ahuja, and Nagarajan Krishnamurthy]

IIT Indore Stability Analysis of Bilinear Iterative Rational Krylov Algorithm Recently, an algorithm for model reduction of bilinear dynamical systems, Biline... http://arxiv.org/abs/1603.06254 August 1st 2014 Kapil Ahuja

Research Breakthrough Details

Name of the Institute IIT Indore
Title Stability Analysis of Bilinear Iterative Rational Krylov Algorithm
URL http://arxiv.org/abs/1603.06254
Release Date August 1st 2014
Developed By Kapil Ahuja

Recently, an algorithm for model reduction of bilinear dynamical systems, Bilinear Iterative Rational Krylov Algorithm (BIRKA) has been proposed. The main contribution of this work is that we prove that BIRKA is stable with respect to the error introduced by inexact linear solves. We support our result by experiments. [Developed by Rajendra Choudhary and Kapil Ahuja]

IIT Indore The Schwinger Mechanism in (Anti) de Sitter Spacetimes Quantum theory tells us that the vacuum (state of zero particles and energy) is ... July 1st 2015 Prasant Kumar Samantray

Research Breakthrough Details

Name of the Institute IIT Indore
Title The Schwinger Mechanism in (Anti) de Sitter Spacetimes
URL
Release Date July 1st 2015
Developed By Prasant Kumar Samantray

Quantum theory tells us that the vacuum (state of zero particles and energy) is actually unstable, and under the presence of an external field, say a constant electric field, charged particles can be "created" out of this vacuum. This is the Schwinger effect. In this paper we look at this effect in certain spacetimes/backgrounds having direct relevance to cosmology - in the context of particle production under the action of the very first/primordial electromagnetic fields in our universe. [Developed by Prasant Samantray]

IIT Indore Recycling Krylov Subspaces for CFD Applications and a New Hybrid Recycling Solver We focus on robust and efficient iterative solvers for the pressure Poisson equa... http://www.sciencedirect.com/science/article/pii/S0021999115006336 May 1st 2015 Kapil Ahuja

Research Breakthrough Details

Name of the Institute IIT Indore
Title Recycling Krylov Subspaces for CFD Applications and a New Hybrid Recycling Solver
URL http://www.sciencedirect.com/science/article/pii/S0021999115006336
Release Date May 1st 2015
Developed By Kapil Ahuja

We focus on robust and efficient iterative solvers for the pressure Poisson equation in incompressible Navier–Stokes problems.We propose a hybrid Krylov subspace recycling approach that gives substantial performance gains [Developed by Amit Amritkar, Eric de Sturler, Katarzyna Świrydowicz, Danesh Tafti, and Kapil Ahuja]

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