95 citations · 107 across the 4 of their papers we have counts for
6 papers
Density perturbations in axion-like particles: classical vs quantum field treatment
Sankha Subhra Chakrabarty
Axions and axion-like particles are bosonic quantum fields. They are often assumed to follow classical field equations due to their high degeneracy in the phase space. In this work…
Dark matters on the scale of galaxies
Ivan de Martino, Sankha S. Chakrabarty, Valentina Cesare +3
The cold dark matter model successfully explains both the emergence and evolution of cosmic structures on large scales and, when we include a cosmological constant, the properties…
Duration of Classicality of an inhomogeneous quantum field with repulsive contact self-interactions
Ariel Arza, Sankha S. Chakrabarty, Seishi Enomoto +2
Quantum fields with large degeneracy are often approximated as classical fields. Here, we show how quantum and classical evolution of a highly degenerate quantum field with repulsi…
Search for dark photon, axion-like particles, dark scalar, or light dark matter in Compton-like processes
Sankha S. Chakrabarty, Igal Jaeglé
We propose a novel way to search for the dark photon (), the axion-like pseudo-scalar (), the dark scalar (), and the light dark matter () in the Compton-like processe…
Effects of a caustic ring of dark matter on the distribution of stars and interstellar gas
Sankha S. Chakrabarty, Pierre Sikivie
Caustic rings of dark matter with cross-section were predicted to lie in the galactic disk. Their radii increase on cosmological time scales at a rate of order $…
Duration of Classicality of Homogeneous Condensates with Attractive Interactions
Sankha Chakrabarty, Seishi Enomoto, Yaqi Han +2
Dark matter axions and other highly degenerate bosonic fluids are commonly described by classical field equations. In a recent paper \cite{BECprop} we calculated the duration of cl…