作者: M. E. Simon , C. M. Varma
DOI: 10.1103/PHYSREVLETT.89.247003
关键词: Microscopic theory 、 Photon 、 Quantum mechanics 、 Quantum critical point 、 State (functional analysis) 、 Symmetry (physics) 、 Physics 、 Cuprate 、 Condensed matter physics
摘要: We present general symmetry considerations on how a time-reversal breaking state may be detected by angle-resolved photoemission using circularly polarized photons as has been proposed earlier. Results of recent experiments utilizing the proposal in underdoped cuprates are analyzed and found to consistent their magnitude with theory copper oxides. These if correct, together evidence quantum critical point marginal Fermi-liquid properties near optimum doping, suggest that essentials valid microscopic phenomena have found.