36 papers
A TQFT-based Platform for Efficient Computation of Knot Invariants
Amena Al Rawi, Hisham Sati, Vivek Kumar Singh
We present an interactive web platform that unifies the construction Feynman ribbon diagrams (FRDs), the evaluation of higher-rank Chern--Simons knot invariants, and the identifica…
Bistability of Exciton-Photon Microcavities in the Ultrastrong-Coupling Regime
Rashed Aljasmi, Hisham Sati, Hichem Eleuch
We investigate a coherently driven exciton--photon microcavity with Kerr nonlinearity in the ultrastrong-coupling regime. When the lower and upper polariton branches are well separ…
Higher Superspace Supergravity and its IR-Completions
Grigorios Giotopoulos, Hisham Sati, Urs Schreiber
It is an old idea that higher-dimensional super-gravity (SuGra) is put on-shell just by imposing Bianchi identities on super-field strengths over super-spacetimes subject to super-…
Flux Quantization on M-Strings
Pinak Banerjee, Hisham Sati, Urs Schreiber
The electric Gauss law in 11D SuGra is famously non-linear, whence its flux quantization must be in nonabelian cohomology. We have previously shown that the minimal admissible choi…
Flux Quantization on 10D Type IIA Superspace via Cyclification from 11D
Grigorios Giotopoulos, Hisham Sati
We produce the dimensional reduction to 10D IIA supergravity (SuGra), via cyclification, of the remarkable result that full 11D SuGra is put on shell just by imposing the duality-s…
Higher Gauge Theory via Differential Nonabelian Cohomology
Hisham Sati, Urs Schreiber
This is a streamlined introduction to the global (infrared) completion of Maxwell-type higher gauge fields (as in the higher gauge sectors of higher dimensional supergravity and it…