Christopher Yang

activity

20232026

most citedOptical Control of Slow Topological Electrons in Moiré Systems

7 citations · 7 across the 5 of their papers we have counts for

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cond-mat.stat-mech2026

Asymptotic freedom, lost: Complex conformal field theory in the two-dimensional $O (N > 2)$ nonlinear sigma model and its realization in Heisenberg spin chains

Christopher Yang, Thomas Scaffidi

The two-dimensional $O (N)$ nonlinear sigma model (NLSM) is asymptotically free for $N > 2$ : it exhibits neither a nontrivial fixed point nor spontaneous symmetry-breaking. Here we sh…

Asymptotic freedom, lost: Complex conformal field theory in the two-dimensional O(N>2) nonlinear sigma model and its realization in Heisenberg spin chains

Asymptotic freedom, lost: Complex conformal field theory in the two-dimensional $O (N > 2)$ nonlinear sigma model and its realization in Heisenberg spin chains