QCD phase diagram with isospin chemical potential

Brandt B, Endrödi G (2017)
In: Proceedings of 34th annual International Symposium on Lattice Field Theory — PoS(LATTICE2016). Trieste, Italy: Sissa Medialab.

Konferenzbeitrag | Veröffentlicht | Englisch
 
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Autor*in
Brandt, Bastian; Endrödi, GergelyUniBi
Abstract / Bemerkung
In this contribution we investigate the phase diagram of QCD in the presence of an isospin chemical potential. To alleviate the infrared problems of the theory associated with pion condensation, we introduce the pionic source as an infrared regulator. We discuss various methods to extrapolate the results to vanishing pionic source, including a novel method based on the singular value spectrum of the massive Dirac operator, a leading-order reweighting and a spline Monte-Carlo fit. Our main results concern the phase transition boundary between the normal and the pion condensation phases and the chiral/deconfinement transition temperature as a function of the chemical potential. In addition, we perform a quantitative comparison between our direct results and a Taylor-expansion obtained at zero chemical potential to assess the applicability range of the latter.
Erscheinungsjahr
2017
Titel des Konferenzbandes
Proceedings of 34th annual International Symposium on Lattice Field Theory — PoS(LATTICE2016)
Konferenz
34th annual International Symposium on Lattice Field Theory
Konferenzort
University of Southampton, UK
Konferenzdatum
2016-07-24 – 2016-07-30
Page URI
https://pub.uni-bielefeld.de/record/2955735

Zitieren

Brandt B, Endrödi G. QCD phase diagram with isospin chemical potential. In: Proceedings of 34th annual International Symposium on Lattice Field Theory — PoS(LATTICE2016). Trieste, Italy: Sissa Medialab; 2017.
Brandt, B., & Endrödi, G. (2017). QCD phase diagram with isospin chemical potential. Proceedings of 34th annual International Symposium on Lattice Field Theory — PoS(LATTICE2016) Trieste, Italy: Sissa Medialab. https://doi.org/10.22323/1.256.0039
Brandt, B., and Endrödi, G. (2017). “QCD phase diagram with isospin chemical potential” in Proceedings of 34th annual International Symposium on Lattice Field Theory — PoS(LATTICE2016) (Trieste, Italy: Sissa Medialab).
Brandt, B., & Endrödi, G., 2017. QCD phase diagram with isospin chemical potential. In Proceedings of 34th annual International Symposium on Lattice Field Theory — PoS(LATTICE2016). Trieste, Italy: Sissa Medialab.
B. Brandt and G. Endrödi, “QCD phase diagram with isospin chemical potential”, Proceedings of 34th annual International Symposium on Lattice Field Theory — PoS(LATTICE2016), Trieste, Italy: Sissa Medialab, 2017.
Brandt, B., Endrödi, G.: QCD phase diagram with isospin chemical potential. Proceedings of 34th annual International Symposium on Lattice Field Theory — PoS(LATTICE2016). Sissa Medialab, Trieste, Italy (2017).
Brandt, Bastian, and Endrödi, Gergely. “QCD phase diagram with isospin chemical potential”. Proceedings of 34th annual International Symposium on Lattice Field Theory — PoS(LATTICE2016). Trieste, Italy: Sissa Medialab, 2017.

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