May 13 – 19, 2018
Venice, Italy
Europe/Zurich timezone
The organisers warmly thank all participants for such a lively QM2018! See you in China in 2019!

Canonical partition functions, virial expansion and the critical point(s) of QCD

May 15, 2018, 5:00 PM
2h 40m
First floor and third floor (Palazzo del Casinò)

First floor and third floor

Palazzo del Casinò

Poster Phase diagram and search for the critical point Poster Session


Maria Paola Lombardo (INFN)


We study the interplay of the fugacity expansion for the Grand Canonical Partition Function, and the Taylor and virial expansion for the number density. We compare results from the Vladivostok group lattice QCD study [1], and from a toy model of QCD with the predictions of a Cluster Model Expansion. We outline different strategies for the search of singularities in the complex chemical potential plane, including a possible QCD critical point for real chemical potential.

[1] V.G.Bornyakov, D.L.Boyda, V.A.Goy, A.V.Molochkov, A.Nakamura, A.A.Nikolaev and V.I.Zakharov,

Centralised submission by Collaboration Presenter name already specified
Content type Theory

Primary authors

Vitaly G. Bornyakov (IHEP, 142281 Protvino, Russia&Far Eastern Federal University, 690950 Vladivostok, Russia&ITEP, 117218 Moscow, Russia) Vladimir A. Goy (Far Eastern Federal University, 690950 Vladivostok, Russia) Atsushi Nakamura (Far Eastern Federal University, 690950 Vladivostok, Russia & RIKEN, Wako 351-0198, Japan &Osaka University, Ibaraki, Osaka, 567-0047, Japan) Maria Paola Lombardo (INFN)

Presentation materials