Particles, Astrophysics, and Nuclear Physics Seminar
“Phase diagram of QCD and Lifshitz regime: how transverse thermal fluctuations might turn nuclear matter into quantum-spin liquid”
Semeon Valgushev
Brookhaven National Lab
Event Details:
Date and Time: October 5, 2020 at 2:00PM
Zoom Meeting Link:
https://us02web.zoom.us/j/8192648596?pwd=WFkzK1VXa2V4ZVRVNC90ZnM3NDdlQT09
Meeting ID: 819 264 8596
Passcode: 9lYjMG
Note: The seminar will start at 2:00PM, but participants are welcomed to join the meeting at 1:30PM for discussion.
We discuss dense cool QCD where a region with spatially inhomogeneous condensate might emerge. In that case, QCD phase diagram may exhibit a Lifshitz regime, which can appear either instead of, or in addition to Critical End Point. We study the Lifshitz regime using a combination of large-N expansion and numerical lattice simulations of an effective O(N) sigma model. We find evidence that quantum fluctuations disorder inhomogeneous condensate ("chiral spirals") and give rise to unusual quantum spin-liquid phase. We also discuss how this novel phase can be detected.
For more information, contact: Anna Huang at anna.huang@uconn.edu