Spin dynamics of La 2 CuO 4 and the two-dimensional …
1995; American Physical Society; Volume: 51; Issue: 14 Linguagem: Inglês
10.1103/physrevb.51.9403
ISSN1095-3795
AutoresAnders W. Sandvik, D. J. Scalapino,
Tópico(s)Theoretical and Computational Physics
ResumoThe spin-lattice relaxation rate 1/${\mathit{T}}_{1}$ and the spin-echo decay rate 1/${\mathit{T}}_{2\mathit{G}}$ for the two-dimensional Heisenberg model are calculated using quantum Monte Carlo and maximum-entropy analytic continuation. The results are compared with recent experiments on ${\mathrm{La}}_{2}$${\mathrm{CuO}}_{4}$, as well as predictions based on the nonlinear \ensuremath{\sigma} model.
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