15 citations · 18 across the 5 of their papers we have counts for
5 papers
Gauge field digitization in the Hamiltonian limit
Attila Pasztor, David Pesznyak
Quantum computers can circumvent the numerical sign problem in gauge theories at finite density or in real time. Quantum simulations of gauge theories require a finite-dimensional…
Is it worth the effort to find Lefschetz thimbles? Integration contours with numerically optimal signal-to-noise ratios in simple fermionic toy models
Attila Pasztor, David Pesznyak
We perform a detailed analysis of the fermionic sign problem in a series of one dimensional integrals, that are achieved as extreme (one-site) limits of genuine physics models. Alt…
Continuum extrapolated high order baryon fluctuations
Szabolcs Borsányi, Zoltán Fodor, Jana N. Guenther +6
Fluctuations play a key role in the study of QCD phases. Lattice QCD is a valuable tool to calculate them, but going to high orders is challenging. Up to the fourth order, continuu…
Fighting the sign problem in a chiral random matrix model with contour deformations
Matteo Giordano, Attila Pasztor, David Pesznyak +1
We studied integration contour deformations in the chiral random matrix theory of Stephanov with the goal of alleviating the finite-density sign problem. We considered simple ansät…
Corrections to the hadron resonance gas from lattice QCD and their effect on fluctuation-ratios at finite density
Rene Bellwied, Szabolcs Borsanyi, Zoltan Fodor +7
The hadron resonance gas (HRG) model is often believed to correctly describe the confined phase of QCD. This assumption is the basis of many phenomenological works on QCD thermodyn…