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Letter
Nature Physics 3, 168–171 (1 March 2007) | doi:10.1038/nphys538
Kinks in the dispersion of strongly correlated electrons
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Abstract
The properties of condensed matter are determined by single-particle and collective excitations and their mutual interactions. These quantum-mechanical excitations are characterized by an energy, E, and a momentum, |[planck]|k, which are related through their dispersion, Ek.
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