59 citations · 188 across the 10 of their papers we have counts for
10 papers
Resonant Dynamics of Gravitational Wave and Chiral Alfvén wave in the Early Universe
Arun Kumar Pandey, Subalakshmi A, Sampurn Anand
In this work, we investigate the resonant interaction between stochastic gravitational waves (GWs) and chiral Alfvén waves in a magnetized chiral plasma in the early Universe. Star…
Generating Seed magnetic field à la Chiral Biermann battery
Arun Kumar Pandey, Sampurn Anand
Cosmological and astrophysical observations indicate the presence of magnetic field over all scales. In order to explain these magnetic fields, it is assumed that there exists a se…
Accounting for the time evolution of the equation of state parameter during reheating
Pankaj Saha, Sampurn Anand, L. Sriramkumar
One of the important parameters in cosmology is the parameter characterizing the equation of state (EoS) of the sources driving the cosmic expansion. Epochs that are dominated by r…
Chiral plasma instability and primordial Gravitational wave
Sampurn Anand, Jitesh R. Bhatt, Arun Kumar Pandey
It is known that cosmic magnetic field, if present, can generate anisotropic stress in the plasma and hence, can act as a source of gravitational waves. These cosmic magnetic field…
Bounds on Neutrino Mass in Viscous Cosmology
Sampurn Anand, Prakrut Chaubal, Arindam Mazumdar +2
Effective field theory of dark matter fluid on large scales predicts the presence of viscosity of the order of . It has been shown that this magnitude of viscosi…
Cosmic viscosity as a remedy for tension between PLANCK and LSS data
Sampurn Anand, Prakrut Chaubal, Arindam Mazumdar +1
Measurements of from large scale structure observations show a discordance with the extrapolated from Planck CMB parameters using CDM cosmology. Similar discordance…
Chiral Battery, scaling laws and magnetic fields
Sampurn Anand, Jitesh R. Bhatt, Arun Kumar Pandey
We study the generation and evolution of magnetic field in the presence of chiral imbalance and gravitational anomaly which gives an additional contribution to the vortical current…
Effects of QCD Equation of State on the Stochastic Gravitational Wave Background
Sampurn Anand, Ujjal Kumar Dey, Subhendra Mohanty
Cosmological phase transitions can be a source of Stochastic Gravitational Wave (SGW) background. Apart from the dynamics of the phase transition, the characteristic frequency and…
Cosmological Implications of QGP Bulk Viscosity
Sampurn Anand, Abhishek Atreya, Jitesh R. Bhatt
Recent studies of the hot QCD matter indicate that the bulk viscosity () of quark-gluon plasma (QGP) rises sharply near the critical point of the QCD phase transition. In this w…
A Geometric Approach to Modulus Stabilization
Sampurn Anand, Debajyoti Choudhury, Anjan A. Sen +1
Modulus stabilization, a must for explaining the hierarchy problem in the context of the Randall-Sundrum (RS) scenario, is traditionally achieved through the introduction of an ext…