Exact results for nonlinear Drude weights in the spin- 12 XXZ chain
نویسندگان
چکیده
منابع مشابه
Spin diffusion and the spin 1/2 XXZ chain at T = ∞ from exact diagonalization
We study the long time behavior of the zz and xx time dependent autocorrelation function of the spin 1/2 XXZ chain at T = ∞ by exact diagonalizations on a chain of 16 sites. We find that the numerical results for the zz correlation are very well fit by the formula t−d[A+Be−γ(t−t0) cos Ω(t− t0)]. From this we estimate d as a function of the anisotropy of the chain and study the crossover from ba...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 2021
ISSN: 2469-9950,2469-9969
DOI: 10.1103/physrevb.103.l201120