Simulating QCD on Lefschetz thimbles

28 June 2017 — 30 June 2017

ECT* - Villa Tambosi

Strada delle Tabarelle, 286
Trento - Italy

Get directions

ECT* - Villa Tambosi

Strada delle Tabarelle, 286
Trento - Italy

Show map Get directions

Non-perturbative lattice QCD calculations at non vanishing baryon number density are hampered by the QCD sign problem. The path integral, that in lattice QCD is calculated numerically, becomes highly oscillating. One possible solution is the Lefschetz thimble approach. It requires a deformation of the original integration domain into a manifold embedded in complex space. For properly chosen integration manifolds (“thimbles”) the sign problem is drastically alleviated. For small bosonic and fermionic models this approach has been shown to work. In this workshop we want to explore the prospect of the Lefschetz thimble approach to get extended to full QCD and discuss current numerical and theoretical limitations.

Organizers

Andrei Alexandru (George Washington University)
Paulo Bedaque (University of Maryland)
Christian Schmidt (University of Bielefeld)

Privacy Notice

Pursuant to art. 13 of EU Regulation No. 2016/679 – General Data Protection Regulation and as detailed in the Privacy Policy for FBK-ECT* event’s participants, we inform you that the event will be recorded and disclosed on the FBK-ECT* institutional channels. In order not to be filmed or recorded, you can disable the webcam and/or mute the microphone during virtual events or inform the FBK-ECT* staff who organize the public event beforehand.