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First-principles calculations of the electronic structure of open-shell condensed matter systems
First-principles calculations electronic structure open-shell matter systems
2012/2/24
We develop a Green's function approach to quasiparticle excitations of open-shell systems within the GW approximation. It is shown that accurate calculations of the characteristic multiplet structure ...
Measuring entanglement in condensed matter systems
Measuring entanglement condensed matter systems
2010/10/20
We show how entanglement may be quantified in spin and cold atom many-body systems using standard experimental techniques only. The scheme requires no assumptions on the state in the laboratory and a ...