43 citations · 406 across the 30 of their papers we have counts for
25 papers · 1 filter
The Positivity Geometry of Photon--Dark-Photon Effective Field Theories
Sayantan Chakraborty, Yash Dadhwal, Arun M. Thalapillil
We derive positivity bounds on the complete dimension-eight effective field theory of photons and a massless dark photon. The mixed gauge sector contains twelve CP-even Wilson coef…
New quantum information perspectives in the axion--photon and neutrino systems
Aaditya Datar, Arun M. Thalapillil, Palak Thareja
In this work, we broach a quantum information-theoretic treatment of axion--photon mixing. Motivated by an emerging class of quantum-enhanced axion searches, we analyse the two-lev…
Q-balls in the sky
Arhum Ansari, Lalit Singh Bhandari, Arun M. Thalapillil
There may exist extended configurations in the dark matter sector that are analogues of structures in the visible sector. In this work, we explore non-topological solitonic configu…
Exploring millicharged dark matter components from the shadows
Lalit S. Bhandari, Arun M. Thalapillil
Dark matter sectors with hidden interactions have been of much interest in recent years. These frameworks include models of millicharged particles as well as dark sector bound stat…
Towards constraining triple gluon operators through tops
Debjyoti Bardhan, Diptimoy Ghosh, Prasham Jain +1
Effective field theory techniques provide us important tools to probe for physics beyond the Standard Model in a relatively model-independent way. In this work, we revisit the CP-e…
Astrophysical hints for magnetic black holes
Diptimoy Ghosh, Arun Thalapillil, Farman Ullah
We discuss a cornucopia of potential astrophysical signatures and constraints on magnetically charged black holes of various masses. As recently highlighted, being potentially viab…