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The dynamics of quantum criticality via Quantum Monte Carlo and holography
William Witczak-Krempa, Erik Sorensen, Subir Sachdev
Understanding the real time dynamics of quantum systems without quasiparticles constitutes an important yet challenging problem. We study the superfluid-insulator quantum-critical…
Correlated quantum phenomena in the strong spin-orbit regime
William Witczak-Krempa, Gang Chen, Yong Baek Kim +1
We discuss phenomena arising from the combined influence of electron correlation and spin-orbit coupling, with an emphasis on emergent quantum phases and transitions in heavy trans…
Dispersing quasinormal modes in 2+1 dimensional conformal field theories
William Witczak-Krempa, Subir Sachdev
We study the charge response of conformal field theories (CFTs) at non-zero temperature in 2+1 dimensions using the AdS/CFT correspondence. A central role is played by the quasinor…