Quantum relaxation in high density fermion and boson tunneling dynamics: Implications for low temperature anomalous surface diffusion

Zhang, Qing; Whaley, K. Birgitta
July 1991
Journal of Chemical Physics;7/15/1991, Vol. 95 Issue 2, p1417
Academic Journal
Quantum relaxation behavior for many-particle tunneling systems of interacting identical particles is studied for both fermions and bosons within the infinite U Hubbard model, using a numerically exact checkerboard time propagation. Dependence of relaxation times upon vacancy concentration is obtained, and conclusions for nuclear statistical effects in hydrogen surface diffusion presented.


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