Jul 24 – 30, 2016
Highfield Campus, University of Southampton
Europe/London timezone

Continuing the Saga of Fluffy Mirror Fermions

Jul 27, 2016, 10:00 AM
Building B2a Room 2077 (Highfield Campus, University of Southampton)

Building B2a Room 2077

Highfield Campus, University of Southampton

Talk Theoretical Developments Theoretical Developments


Ms Dorota Grabowska (INT/UW)


I discuss continuing work on a recent proposal for the nonperturbative regulator for chiral gauge theories which combines domain wall fermions and gradient flow, Phys.Rev.Lett. 116 (2016) 211602. Implementing chiral gauge theories on the lattice requires not only decoupling mirror fermions to allow for fermions in complex representations, but also a road to failure for theories with fermions in anomalous representations. Unlike attempts to gap the mirror fermion spectrum, this proposal gives the mirror fermions exponentially soft form factors, allowing them to decouple from ordinary matter except through nontrivial gauge field topology. I discuss progress on various open questions for this formulation that were left unresolved in the original work.

Primary author

Ms Dorota Grabowska (INT/UW)

Presentation materials