111 citations · 490 across the 18 of their papers we have counts for
18 papers
Violation of the Landau-Yang theorem from Infrared Lorentz Symmetry Breaking
M. Asorey, A. P. Balachandran, Arshad Momen +1
Lorentz symmetry forbids decays of massive spin-1 particle like the into two massless photons, a result known as the Landau-Yang theorem. But it is known that infrared effect…
Gravity, time and varying constants
Syed Moeez Hassan, Viqar Husain, Babar Qureshi
There are theories which implement the idea that the constants of nature may be "time dependent." These introduce new fields representing "evolving constants," in addition to physi…
ADM Energy and Infra-gravitons
A P Balachandran, Babar Qureshi
In QED and QCD [1, 2], infrared photons and gluons alter the Hilbert space of the theory so that the in and out states live in a Hilbert space carrying a representation of basic co…
Brane Webs and Random Processes
Amer Iqbal, Babar A. Qureshi, Khurram Shabbir +1
We study 5-brane webs dual to certain M5-brane configurations and show that the partition function of these brane webs gives rise to cylindric Schur process with period…
Ground state of the universe and the cosmological constant. A nonperturbative analysis
Viqar Husain, Babar Qureshi
The physical Hamiltonian of a gravity-matter system depends on the choice of time, with the vacuum naturally identified as its ground state. We study the expanding universe with sc…
Topological Field Theory Amplitudes for Fibration
Amer Iqbal, Ahsan Z. Khan, Babar A. Qureshi +2
We study the partition function 5D gauge theory with adjoint hypermultiplets and show that for massless adjoint hypermultiplets it is equal to the partition…