Correlation functions of the XXZ spin-1/2 chain: recent progress
Correlation functions of the XXZ spin-1/2 chain: recent progress
Correlation functions of the XXZ spin-1/2 chain: recent progress
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J. M. Maillet <strong>Correlation</strong> <strong>functions</strong>Emptiness formation probabilityfor ∆ = cos ζ, 0 < ζ < π :τ(m) =limξ 1 ,...ξm→− iζ 21m!τ(m) = 〈ψ g |∫ ∞−∞m∏k=11 − σ z k|ψ g 〉2()Z m ({λ}, {ξ})idet m∏m2ζ sinhsinh(ξ a − ξ b )π ζ (λ j − ξ k )abFor ζ = π/3 : τ(m) = ( )1 m2 ∏ m−12 k=0( √3 ) 3m2(3k+1)!(m+k)! → c 2m − 36, 5m → ∞– Typeset by FoilTEX – Florence 2003 10