Abstract
On the basis of quantum Monte Carlo results the evolution of the spectral weight A(k,ω) of the two-dimensional Hubbard model is studied from insulating to metallic behavior. As observed in recent photoemission experiments for cuprates, the electronic excitations display essentially doping-independent features; a quasiparticlelike dispersive narrow band of width of the order of the exchange interaction J and a broad valence- and conduction-band background. The continuous evolution is traced back to one and the same many-body origin: the doping-dependent antiferromagnetic spin-spin correlation.
Originalsprache | englisch |
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Seiten (von - bis) | 1344-1347 |
Seitenumfang | 4 |
Fachzeitschrift | Physical Review Letters |
Jahrgang | 75 |
Ausgabenummer | 7 |
DOIs | |
Publikationsstatus | Veröffentlicht - 1 Aug. 1995 |