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Phys. Rev. Lett. 87, 177206 (2001) [4 pages]

Spinon-Holon Attraction in the Supersymmetric t-J Model with 1/r2 Interaction

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B. A. Bernevig1,3, D. Giuliano2, and R. B. Laughlin1
1Department of Physics, Stanford University, Stanford, California 94305
2I.N.F.M., Unità di Napoli, Monte S. Angelo-via Cintia, I-80126 Napoli, Italy
3Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139

Received 28 May 2001; published 9 October 2001

We derive the coordinate representation of the one-spinon one-holon wave function for the supersymmetric t-J model with 1/r2 interaction. This result allows us to show that a spinon and a holon attract each other at short distance. The attraction gets stronger as the size of the system is increased and, in the thermodynamic limit, it is responsible for the square-root singularity in the hole spectral function [Y. Kato, Phys. Rev. Lett. 81, 5402 (1998)].

© 2001 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.87.177206
DOI:
10.1103/PhysRevLett.87.177206
PACS:
75.10.Jm, 05.30.Pr, 71.27.+a