Journal article
Authors list: Buividovich, P. V.; Smith, D.; von Smekal, L.
Publication year: 2021
Journal: The European Physical Journal A
Volume number: 57
Issue number: 10
ISSN: 1434-6001
eISSN: 1434-601X
Open access status: Hybrid
DOI Link: https://doi.org/10.1140/epja/s10050-021-00604-7
Publisher: Springer
Abstract:
We study static magnetic susceptibility chi(T,mu) in SU(2) lattice gauge theory with N-f = 2 light flavours of dynamical fermions at finite chemical potential mu. Using linear response theory we find that SU(2) gauge theory exhibits paramagnetic behavior in both the high-temperature deconfined regime and the low-temperature confining regime. Paramagnetic response becomes stronger at higher temperatures and larger values of the chemical potential. For our range of temperatures 0.727 <= T/ T-c <= 2.67, the first coefficient of the expansion of chi (T, mu) in even powers of mu/T around mu = 0 is close to that of free quarks and lies in the range (2,..., 5) center dot 10(-3). The strongest paramagnetic response is found in the diquark condensation phase at mu > m pi/2.
Citation Styles
Harvard Citation style: Buividovich, P., Smith, D. and von Smekal, L. (2021) Static magnetic susceptibility in finite-density SU (2) lattice gauge theory, The European Physical Journal A, 57(10), Article 293. https://doi.org/10.1140/epja/s10050-021-00604-7
APA Citation style: Buividovich, P., Smith, D., & von Smekal, L. (2021). Static magnetic susceptibility in finite-density SU (2) lattice gauge theory. The European Physical Journal A. 57(10), Article 293. https://doi.org/10.1140/epja/s10050-021-00604-7
Keywords
QCD
