8 papers
Lepton asymmetry leading to baryogenesis by primordial black holes
Mriganka Dutta, Banibrata Mukhopadhyay, Abhishek Kumar Jha +2
Baryogenesis remains an unresolved problem in cosmology, with existing mechanisms facing significant caveats. We show that the effects of primordial black holes (PBHs) on neutrinos…
Kolmogorov Scaling for Total Energy and Cross Helicity in Magnetohydrodynamic Turbulence
Manthan Verma, Abhishek K. Jha, Mahendra K. Verma
The problem of scaling in isotropic magnetohydrodynamic (MHD) turbulence has remained unresolved, with competing predictions of (Kolmogorov) and (Iroshnikov-K…
Quantum speed limit time for bipartite entanglement in neutrino oscillations in matter with non-standard interactions
Abhishek Kumar Jha, Lekhashri Konwar, Rukmani Mohanta
In the three-flavor neutrino oscillation framework, we investigate the transition probabilities of an initial muon neutrino flavor state in the presence of non-standard interaction…
Quantum spread complexity as a probe of NSI, Violation, and mass ordering in neutrino oscillations in matter
Abhishek Kumar Jha, Govind Krishna G, Anandbhai Pravinbhai Prajapati +1
Quantum spread complexity characterizes how a quantum state evolves and becomes distributed over the Hilbert space under unitary dynamics. In this work, we employ a cost function a…
Probing the quantum speed limit and entanglement in flavor oscillations of neutrino-antineutrino system in curved spacetime
Abhishek Kumar Jha, Mriganka Dutta, Mayank Pathak +2
We consider a spinning primordial black hole (PBH) described by the Kerr metric in Kerr-Schild polar coordinates. We derive an analytical expression for the four-vector gravitation…
Probing violation and mass ordering in neutrino oscillations in matter through quantum speed limits
Subhadip Bouri, Abhishek Kumar Jha, Subhashish Banerjee
The quantum speed limits (QSLs) set fundamental lower bounds on the time required for a quantum system to evolve from a given initial state to a final state. In this work, we inves…