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Pion Propagation near the QCD Chiral Phase Transition
D. T. Son, M. A. Stephanov
We point out that, in analogy with spin waves in antiferromagnets, all parameters describing the real-time propagation of soft pions at temperatures below the QCD chiral phase tran…
Thermal fluctuations in the interacting pion gas
M. Stephanov
We derive the two-particle fluctuation correlator in a thermal gas of pi-mesons to the lowest order in an interaction due to a resonance exchange. A diagrammatic technique is used.…
Kaon Condensation and Goldstone's Theorem
T. Schaefer, D. T. Son, M. A. Stephanov +2
We consider QCD at a nonzero chemical potential for strangeness. At a critical value of the chemical potential equal to the kaon mass, kaon condensation occurs through a continuous…
Instanton interactions in dense-matter QCD
D. T. Son, M. A. Stephanov, A. R. Zhitnitsky
A Coulomb gas representation of dense-matter QCD is derived from a dual transformation of the low-energy effective Lagrangian. The point-like charges Q=+1,-1 of the gas are identif…