The topological objects near the chiral crossover transition in QCD

Rasmus N. Larsen; Sayantan Sharma; Edward Shuryak

doi:10.1016/j.physletb.2019.05.019

The topological objects near the chiral crossover transition in QCD

Rasmus N. Larsen
, Sayantan Sharma
, Edward Shuryak

Physics and Astronomy

Brookhaven National Laboratory
Institute of Mathematical Sciences

Research output: Contribution to journal › Article › peer-review

15 Scopus citations

Abstract

We study the underlying topology of gauge fields in 2+1 flavor QCD with domain wall fermions on lattices of size 32 ³ ×8, at and immediately above the chiral crossover transition. Using valence overlap fermions with exact index theorem, we focus on its zero modes for different choices of periodicity phases along the temporal direction. Our studies show that the zero modes are due to fractionally charged topological objects, the instanton-dyons. We further provide qualitative study of the interactions between those and compare with the available semi-classical results, finding remarkably accurate agreement in all cases.

Original language	English
Pages (from-to)	14-18
Number of pages	5
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	794
DOIs	https://doi.org/10.1016/j.physletb.2019.05.019
State	Published - Jul 10 2019

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title = "The topological objects near the chiral crossover transition in QCD",

abstract = " We study the underlying topology of gauge fields in 2+1 flavor QCD with domain wall fermions on lattices of size 32 3 ×8, at and immediately above the chiral crossover transition. Using valence overlap fermions with exact index theorem, we focus on its zero modes for different choices of periodicity phases along the temporal direction. Our studies show that the zero modes are due to fractionally charged topological objects, the instanton-dyons. We further provide qualitative study of the interactions between those and compare with the available semi-classical results, finding remarkably accurate agreement in all cases.",

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AU - Sharma, Sayantan

AU - Shuryak, Edward

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N2 - We study the underlying topology of gauge fields in 2+1 flavor QCD with domain wall fermions on lattices of size 32 3 ×8, at and immediately above the chiral crossover transition. Using valence overlap fermions with exact index theorem, we focus on its zero modes for different choices of periodicity phases along the temporal direction. Our studies show that the zero modes are due to fractionally charged topological objects, the instanton-dyons. We further provide qualitative study of the interactions between those and compare with the available semi-classical results, finding remarkably accurate agreement in all cases.

AB - We study the underlying topology of gauge fields in 2+1 flavor QCD with domain wall fermions on lattices of size 32 3 ×8, at and immediately above the chiral crossover transition. Using valence overlap fermions with exact index theorem, we focus on its zero modes for different choices of periodicity phases along the temporal direction. Our studies show that the zero modes are due to fractionally charged topological objects, the instanton-dyons. We further provide qualitative study of the interactions between those and compare with the available semi-classical results, finding remarkably accurate agreement in all cases.

UR - https://www.scopus.com/pages/publications/85065867428

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DO - 10.1016/j.physletb.2019.05.019

M3 - Article

AN - SCOPUS:85065867428

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JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

ER -

The topological objects near the chiral crossover transition in QCD

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