42 citations · 236 across the 34 of their papers we have counts for
5 papers · 1 filter
Probing Decaying Dark Matter Using the Post-EoR HI 21-cm signal
Mohit Yadav, Tapomoy Guha Sarkar
We propose the HI 21-cm power spectrum from the post-reionization epoch as a probe of a cosmological model with decaying dark matter particles. The unstable particles are assumed t…
Probing dark energy using anisotropies in the clustering of post-EoR HI distribution
Chandrachud B. V. Dash, Tapomoy Guha Sarkar
We propose an anisotropy quantifier of the HI 21-cm signal traditionally used to clock the astrophysics of the reionization era as a post-reionization dark energy diagnostic. We fi…
Adiabatic modulation of driving protocols in periodically driven quantum systems
Ashwin Murali, Tapomoy Guha Sarkar, Jayendra N. Bandyopadhyay
We consider a periodically driven system where the high-frequency driving protocol consists of a sequence of potentials switched on and off at different instants within a period. W…
X-ray emission spectrum for axion-photon conversion in magnetospheres of strongly magnetized neutron stars
Shubham Yadav, M. Mishra, Tapomoy Guha Sarkar
Detecting axionic dark matter (DM) could be possible in an X-ray spectrum from strongly magnetized neutron stars (NSs). We examine the possibility of axion-photon conversion in the…
Conversion of Emitted Axionic Dark Matter to Photons for Non-Rotating Magnetized Neutron Stars
Shubham Yadav, M. Mishra, Tapomoy Guha Sarkar
We attempt to find the impact of a modified Tolman Oppenheimer Volkoff (TOV) system of equations on the luminosities of direct photons, neutrinos and axions for a particular axion…