QCD phase diagram for nonzero isospin-asymmetry

Brandt B B, Endrödi G, Schmalzbauer S (2018)
Physical Review D 97(5): 054514.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Autor*in
Brandt, B. B.; Endrödi, GergelyUniBi; Schmalzbauer, S.
Abstract / Bemerkung
The QCD phase diagram is studied in the presence of an isospin asymmetry using continuum extrapolated staggered quarks with physical masses. In particular, we investigate the phase boundary between the normal and the pion condensation phases and the chiral/deconfinement transition. The simulations are performed with a small explicit breaking parameter in order to avoid the accumulation of zero modes and thereby stabilize the algorithm. The limit of vanishing explicit breaking is obtained by means of an extrapolation, which is facilitated by a novel improvement program employing the singular value representation of the Dirac operator. Our findings indicate that no pion condensation takes place above T≈160  MeV and also suggest that the deconfinement crossover continuously connects to the BEC-BCS crossover at high isospin asymmetries. The results may be directly compared to effective theories and model approaches to QCD.
Erscheinungsjahr
2018
Zeitschriftentitel
Physical Review D
Band
97
Ausgabe
5
Art.-Nr.
054514
ISSN
2470-0010
eISSN
2470-0029
Page URI
https://pub.uni-bielefeld.de/record/2955727

Zitieren

Brandt B B, Endrödi G, Schmalzbauer S. QCD phase diagram for nonzero isospin-asymmetry. Physical Review D. 2018;97(5): 054514.
Brandt, B.  B., Endrödi, G., & Schmalzbauer, S. (2018). QCD phase diagram for nonzero isospin-asymmetry. Physical Review D, 97(5), 054514. https://doi.org/10.1103/PhysRevD.97.054514
Brandt, B.  B., Endrödi, G., and Schmalzbauer, S. (2018). QCD phase diagram for nonzero isospin-asymmetry. Physical Review D 97:054514.
Brandt, B. B., Endrödi, G., & Schmalzbauer, S., 2018. QCD phase diagram for nonzero isospin-asymmetry. Physical Review D, 97(5): 054514.
B. B. Brandt, G. Endrödi, and S. Schmalzbauer, “QCD phase diagram for nonzero isospin-asymmetry”, Physical Review D, vol. 97, 2018, : 054514.
Brandt, B. B., Endrödi, G., Schmalzbauer, S.: QCD phase diagram for nonzero isospin-asymmetry. Physical Review D. 97, : 054514 (2018).
Brandt, B. B., Endrödi, Gergely, and Schmalzbauer, S. “QCD phase diagram for nonzero isospin-asymmetry”. Physical Review D 97.5 (2018): 054514.

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