Search of QCD phase transition points in the canonical approach of the NJL model
We study the Lee-Yang zeros in the canonical approach to search phase transition points at finite temperature and density in the Nambu-Jona-Lasinio (NJL) model as an effective model of QCD. The canonical approach is a promising method to avoid the sign problem in lattice QCD at finite density. We fi...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2019-08-01
|
| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269319304514 |
| id |
doaj-565424514af94aa2a5d1df0943527a7a |
|---|---|
| record_format |
Article |
| spelling |
doaj-565424514af94aa2a5d1df0943527a7a2020-11-25T01:48:51ZengElsevierPhysics Letters B0370-26932019-08-01795548553Search of QCD phase transition points in the canonical approach of the NJL modelMasayuki Wakayama0Atsushi Hosaka1Research Center for Nuclear Physics (RCNP), Osaka University, Ibaraki, Osaka 567-0047, Japan; Center for Extreme Nuclear Matters (CENuM), Korea University, Seoul 02841, Republic of Korea; Department of Physics, Pukyong National University (PKNU), Busan 48513, Republic of Korea; Corresponding author at: Research Center for Nuclear Physics (RCNP), Osaka University, Ibaraki, Osaka 567-0047, Japan.Research Center for Nuclear Physics (RCNP), Osaka University, Ibaraki, Osaka 567-0047, Japan; Advanced Science Research Center, Japan Atomic Energy Agency (JAEA), Tokai 319-1195, JapanWe study the Lee-Yang zeros in the canonical approach to search phase transition points at finite temperature and density in the Nambu-Jona-Lasinio (NJL) model as an effective model of QCD. The canonical approach is a promising method to avoid the sign problem in lattice QCD at finite density. We find that a set of Lee-Yang zeros computed with finite degrees of freedom can be extrapolated to those with infinite degrees of freedom, providing the correct phase transition point. We propose the present method as a useful method for actual lattice simulations for QCD. Keywords: QCD phase, Finite density, Canonical approach, Imaginary chemical potential, Nambu-Jona-Lasinio modelhttp://www.sciencedirect.com/science/article/pii/S0370269319304514 |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Masayuki Wakayama Atsushi Hosaka |
| spellingShingle |
Masayuki Wakayama Atsushi Hosaka Search of QCD phase transition points in the canonical approach of the NJL model Physics Letters B |
| author_facet |
Masayuki Wakayama Atsushi Hosaka |
| author_sort |
Masayuki Wakayama |
| title |
Search of QCD phase transition points in the canonical approach of the NJL model |
| title_short |
Search of QCD phase transition points in the canonical approach of the NJL model |
| title_full |
Search of QCD phase transition points in the canonical approach of the NJL model |
| title_fullStr |
Search of QCD phase transition points in the canonical approach of the NJL model |
| title_full_unstemmed |
Search of QCD phase transition points in the canonical approach of the NJL model |
| title_sort |
search of qcd phase transition points in the canonical approach of the njl model |
| publisher |
Elsevier |
| series |
Physics Letters B |
| issn |
0370-2693 |
| publishDate |
2019-08-01 |
| description |
We study the Lee-Yang zeros in the canonical approach to search phase transition points at finite temperature and density in the Nambu-Jona-Lasinio (NJL) model as an effective model of QCD. The canonical approach is a promising method to avoid the sign problem in lattice QCD at finite density. We find that a set of Lee-Yang zeros computed with finite degrees of freedom can be extrapolated to those with infinite degrees of freedom, providing the correct phase transition point. We propose the present method as a useful method for actual lattice simulations for QCD. Keywords: QCD phase, Finite density, Canonical approach, Imaginary chemical potential, Nambu-Jona-Lasinio model |
| url |
http://www.sciencedirect.com/science/article/pii/S0370269319304514 |
| work_keys_str_mv |
AT masayukiwakayama searchofqcdphasetransitionpointsinthecanonicalapproachofthenjlmodel AT atsushihosaka searchofqcdphasetransitionpointsinthecanonicalapproachofthenjlmodel |
| _version_ |
1725009733992054784 |