18 citations · 70 across the 15 of their papers we have counts for
4 papers · 1 filter
Thimble regularisation of YM fields: crunching a hard problem
Francesco Di Renzo, Simran Singh, Kevin Zambello
Thimble regularisation of Yang Mills theories is still to a very large extent terra incognita. We discuss a couple of topics related to this big issue. 2d YM theories are in princi…
Taylor expansions and Padé approximations for Lefschetz thimbles and beyond
Kevin Zambello, Francesco Di Renzo, Simran Singh
Deforming the domain of integration after complexification of the field variables is an intriguing idea to tackle the sign problem. In thimble regularization the domain of integrat…
Lee-Yang edge singularities in 2+1 flavor QCD with imaginary chemical potential
Guido Nicotra, Petros Dimopoulos, Lorenzo Dini +6
We present results of the location of the closest singularities in the complex chemical potential plane using a novel method. These results are obtained with (2+1)-flavor of highly…
Lee-Yang edge singularities in lattice QCD : A systematic study of singularities in the complex plane using rational approximations
Simran Singh, Petros Dimopoulos, Lorenzo Dini +6
A new approach is presented to explore the singularity structure of lattice QCD at imaginary chemical potential. Our method can be seen as a combination of the Taylor expansion and…