Schmidt KP (2001)
Publication Status: Published
Publication Type: Journal article
Publication year: 2001
Publisher: AMERICAN PHYSICAL SOC
Book Volume: 87
Pages Range: art. no.-167204
Journal Issue: 16
Spectral densities are computed in unprecedented detail for quantum anti ferromagnetic spin 1/2 two-leg ladders. These results were obtained due to a major methodical advance achieved by optimally chosen unitary transformations. The approach is based on dressed integer excitations. Considerable weight is found at high energies in the two-particle sector. Precursors of fractional spinon physics occur supporting the conclusion that there is no necessity to resort to fractional excitations in order to describe features at higher energies.
APA:
Schmidt, K.P. (2001). Fractional and integer excitations in quantum antiferromagnetic spin 1/2 ladders. Physical Review Letters, 87(16), art. no.-167204.
MLA:
Schmidt, Kai Phillip. "Fractional and integer excitations in quantum antiferromagnetic spin 1/2 ladders." Physical Review Letters 87.16 (2001): art. no.-167204.
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