Random spin chains with XX+YY interactions show spin survival probability decaying slower than any power law, approximately as 1/log^2(t), captured by a new superspin RSRG-X formalism.
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Superspin Renormalization and Slow Relaxation in Random Spin Systems
Random spin chains with XX+YY interactions show spin survival probability decaying slower than any power law, approximately as 1/log^2(t), captured by a new superspin RSRG-X formalism.