3 papers
astro-ph.HE2020
Consistent Blandford-Znajek Expansion
Jay Armas, Yangyang Cai, Geoffrey Compére +2
The Blandford-Znajek mechanism is the continuous extraction of energy from a rotating black hole via plasma currents flowing on magnetic field lines threading the horizon. In the d…
hep-th2019
Thermal transitions of metastable M-branes
Jay Armas, Nam Nguyen, Vasilis Niarchos +1
We use blackfold methods to analyse the properties of putative supergravity solutions in M-theory that describe the backreaction of polarised anti-M2 branes (namely, M5 branes wrap…
hep-th2018
One-form superfluids and magnetohydrodynamics
Jay Armas, Akash Jain
We use the framework of generalised global symmetries to study various hydrodynamic regimes of hot electromagnetism. We formulate the hydrodynamic theories with an unbroken or a sp…