37 citations · 99 across the 9 of their papers we have counts for
9 papers
Viscous Self Interacting Dark Matter Cosmology For Small Redshift
Abhishek Atreya, Jitesh R. Bhatt, Arvind Kumar Mishra
The viscosity of dark matter in cosmological models may cause an accelerated expansion and when this effect is sufficiently large, it can explain the dark energy. In this work, att…
Primordial magnetic field generation in the Quark Gluon Plasma phase
Abhishek Atreya, Soma Sanyal
In this work we investigate the possibility of generation of primordial magnetic field in the early universe near the QCD phase transition epoch via the collapse of domains.…
Viscous Self Interacting Dark Matter and Cosmic Acceleration
Abhishek Atreya, Jitesh R. Bhatt, Arvind Mishra
Self interacting dark matter (SIDM) provides us with a consistent solution to certain astrophysical observations in conflict with collision-less cold DM paradigm. In this work we e…
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…
Primordial Magnetic Field Via Weibel Instability In The Quark Gluon Plasma Phase
Abhishek Atreya, Soma Sanyal
The origin of the observed large scale magnetic fields in the Universe is a mystery. The seed of these magnetic fields has been attributed to physical process in the early universe…
Spontaneous CP violating quark scattering from asymmetric interfaces in QGP
Abhishek Atreya, Partha Bagchi. Arpan Das, Ajit M. Srivastava
In this paper, we extend our earlier study of spontaneous CP violating scattering of quarks and anti-quarks from QCD domain walls for the situation when these wal…
Reviving quark nuggets as a candidate for dark matter
Abhishek Atreya, Anjishnu Sarkar, Ajit M. Srivastava
We discuss a novel mechanism for segregation of baryons and anti-baryons in the quark-gluon plasma phase which can lead to formation of quark and antiquark nuggets in the early uni…
A Novel Mechanism for Disintegration in Relativistic Heavy Ion Collisions
Abhishek Atreya, Partha Bagchi, Ajit M. Srivastava
In this paper we discuss the possibility of disintegration due the domain walls that are expected to form in QGP medium. These domain walls give rise to localised colo…
Spontaneous CP violation in quark scattering from QCD Z(3) interfaces
Abhishek Atreya, Anjishnu Sarkar, Ajit M. Srivastava
In this paper, we explore the possibility of spontaneous CP violation in the scattering of quarks and anti-quarks from QCD Z(3) domain walls. The CP violation here arises from the…