3 papers
quant-ph2026
Orbital-Angular-Momentum Entangled Photon Emission from Circular Currents in Semiconductor-Superconductor Structures
Avi Koriat, Ankit Kumar, Alex Hayat
We theoretically demonstrate that a superconducting circular current induced in a semiconductor results in emission of orbital-angular-momentum (OAM) entangled photon pairs upon ca…
math.AT2026
Purity of quaternionic conjugation spaces
Surojit Ghosh, Ankit Kumar, Lakshit Pande
Conjugation spaces relate the cohomology of a space and its fixed points via a degree-halving isomorphism and admit a characterization in terms of homological purity. We extend thi…
math.AT2026
-graded cohomology of universal spaces and the coefficient ring
Surojit Ghosh, Ankit Kumar
We compute the -graded Bredon cohomology of equivariant universal and classifying spaces associated to families of subgroups, with coefficients in the constant…