Speaker
Ms
Argia Rubeo
(TCD (Trinity College Dublin))
Description
The gradient flow provides a new class of renormalized observables which
can be measured with high precision in lattice simulations. In principle
this allows to improve lattice actions a la Symanzik by requiring such
observables to take their continuum values already at finite lattice
spacing. At lowest order of perturbation theory we here try to identify
such improvement conditions for the O(a) counterterm at the Schroedinger
functional boundaries. We study the action density, E(t,x), separately
for colour electric and magnetic components and with different
discretizations of the observable and the flow.
Primary authors
Ms
Argia Rubeo
(TCD (Trinity College Dublin))
Prof.
Stefan Sint
(Trinity College Dublin)
