Anomaly-Induced Inhomogeneous Phase in Quark Matter without the Sign Problem
Peer reviewed, Journal article
Published version
Permanent lenke
https://hdl.handle.net/11250/3046628Utgivelsesdato
2019Metadata
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Originalversjon
Brauner, T., Filios, G., & Kolešová, H. (2019). Anomaly-induced inhomogeneous phase in quark matter without the sign problem. Physical Review Letters, 123(1), 012001. 10.1103/PhysRevLett.123.012001Sammendrag
We demonstrate the existence of an anomaly-induced inhomogeneous phase in a class of vectorlike gauge theories without the sign problem, thus disproving the long-standing conjecture that the absence of the sign problem precludes spontaneous breaking of translational invariance. The presence of the phase in the two-color modification of quantum chromodynamics can be tested by an independent nonperturbative evaluation of the neutral pion decay constant as a function of an external magnetic field. Our results provide a benchmark for future lattice studies of inhomogeneous phases in dense quark matter.