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Caltech Researchers Measure Conformal Field Theory Spectra on a Neutral-Atom Quantum Simulator
A physics collaboration led by Caltech—combining the experimental laboratory of Professor Manuel Endres and the theoretical group of Professor Jason Alicea, alongside theorists from Université Paris-Saclay and the Technical University of Munich—has performed the first direct experimental measurement of finite-size energy excitation spectra predicted by 2D Conformal Field Theories (CFTs). Detailed in Nature (“Observation of conformal field theory spectra in a quantum simulator“), the team used an analog neutral-atom quantum simulator to measure the low-energy level ratios (“rungs of the energy ladder”) predicted by John Cardy’s 40-year-old CFT framework at quantum phase transitions.
