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Schwinger-Keldysh Propagators from AdS/CFT Correspondence
C. P. Herzog, D. T. Son
We demonstrate how to compute real-time Green's functions for a class of finite temperature field theories from their AdS gravity duals. In particular, we reproduce the two-by-two…
Low-Energy Quantum Effective Action for Relativistic Superfluids
D. T. Son
We consider relativistic superfluids where the U(1) baryon symmetry is spontaneously broken. Using the formalism of the quantum effective action, we show that the low-energy dynami…
Minkowski-space correlators in AdS/CFT correspondence: recipe and applications
D. T. Son, A. O. Starinets
We formulate a prescription for computing Minkowski-space correlators from AdS/CFT correspondence. This prescription is shown to give the correct retarded propagators at zero tempe…
Real-time pion propagation in finite-temperature QCD
D. T. Son, M. A. Stephanov
We argue that in QCD near the chiral limit, at all temperatures below the chiral phase transition, the dispersion relation of soft pions can be expressed entirely in terms of three…