Correlation functions in the one-dimensional t - J model

Journal Article · Mon Oct 29 00:00:00 EST 1990 · Physical Review Letters; (USA)

DOI:https://doi.org/10.1103/PhysRevLett.65.2309· OSTI ID:5986233

Kawakami, N; Yang, S ^[1]

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1. Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto (Japan)

The critical exponents for the charge, spin, electron, and superconducting correlation functions of the one-dimensional {ital t}-{ital J} model at {ital t}={ital J} are obtained for arbitrary band filling. Our method is based on the Bethe-ansatz solution and the finite-size scaling analysis in conformal field theory. The long-distance behavior of the model belongs to the same universality class as the repulsive Hubbard model. Near half-filling the exponents take the values expected in the strong-correlation limit of the Hubbard model. In the low-density limit the exponents are those of the noninteracting system.

• OSTI ID: 5986233
• Journal Information: Physical Review Letters; (USA), Vol. 65:18; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
HIGH-TC SUPERCONDUCTORS
SUPERCONDUCTIVITY
CORRELATION FUNCTIONS
CONFORMAL INVARIANCE
ELECTRIC CHARGES
ELECTRON CORRELATION
HAMILTONIANS
SPIN
THEORETICAL DATA
ANGULAR MOMENTUM
CORRELATIONS
DATA
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
FUNCTIONS
INFORMATION
INVARIANCE PRINCIPLES
MATHEMATICAL OPERATORS
NUMERICAL DATA
PARTICLE PROPERTIES
PHYSICAL PROPERTIES
QUANTUM OPERATORS
SUPERCONDUCTORS
656100* - Condensed Matter Physics- Superconductivity