3 papers
hep-th2020
Accelerating Solitons
Ilarion V. Melnikov, Constantinos Papageorgakis, Andrew B. Royston
We present the saddle-point approximation for the effective Hamiltonian of the quantum kink in two-dimensional linear sigma models to all orders in the time-derivative expansion. W…
hep-th2018
Deconstructing Defects
Joseph Hayling, Vasilis Niarchos, Constantinos Papageorgakis
We use the exact-deconstruction prescription to lift various squashed- partition functions with supersymmetric-defect insertions to four-dimensional superconformal indices. St…
hep-th2018
Deconstructing Little Strings with Gauge Theories on Ellipsoids
Joseph Hayling, Rodolfo Panerai, Constantinos Papageorgakis
A formula was recently proposed for the perturbative partition function of certain gauge theories on the round four-sphere, using an analytic-continuation argument i…