Aug 8 – 13, 2022
Hörsaalzentrum Poppelsdorf
Europe/Berlin timezone

Boundary terms in Complex Langevin simulations of full QCD

Aug 11, 2022, 11:50 AM
CP1-HSZ/Ground-0.011 - HS1 (CP1-HSZ)

CP1-HSZ/Ground-0.011 - HS1


Oral Presentation QCD at Non-zero Density Non-zero Density


Michael Westh Hansen (University of Graz)


Lattice simulations of non-zero density QCD introduce the so-called sign problem (complex or negative probabilities), which invalidates importance sampling methods. We use the Complex Langevin equation (CLE) to circumvent the sign problem, measure boundary terms and use reweighting to test the reliability of the boundary term observable, confirming expectations from previous studies.
We also investigate boundary terms in simulations using CLE with dynamic stabilization and compare this, to results calculated with reweighting.

Primary authors

Prof. Denes Sexty (Graz university) Michael Westh Hansen (University of Graz)

Presentation materials