Elementary excitations of one-dimensional [ital t]-[ital J] model with inverse-square exchange

Journal Article · Mon Nov 21 00:00:00 EST 1994 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.73.2887· OSTI ID:6880247

Ha, Z N.C.; Haldane, F D.M. ^[1]

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1. School of Natural Sciences, Institute for Advanced Study, Princeton, New Jersey 08540 (United States) Department of Physics, Princeton University, Princeton, New Jersey 08544 (United States)

We identify exact excitation content of the intermediate states for the one-particle Green's functions, spin-spin, and (charge) density-density correlation functions of the periodic one-dimensional [ital t]-[ital J] model with inverse-square exchange. The excitations consist of neutral [ital S]=1/2 spinons and spinless (charge [minus][ital e]) holons with semionic fractional statistics, and bosonic (charge +2[ital e]) antiholons'' which are excitations of the holon condensate. We find a set of selection rules and the regions of nonvanishing spectral weight in the energy-momentum space for the various correlation functions.

• DOE Contract Number: FG02-90ER40542
• OSTI ID: 6880247
• Journal Information: Physical Review Letters; (United States), Vol. 73:21; ISSN 0031-9007
• Country of Publication: United States
• Language: English

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