Abstract
We study finite-size corrections to the free energy of the Sherrington–Kirkpatrick spin glass in the low-temperature phase where replica symmetry is broken. We investigate the role of longitudinal fluctuations in these corrections, neglecting the transverse contribution. In particular, we are interested in the value of exponent that controls the finite volume corrections: is defined by the relation , N being the total number of spins. We perform both an analytical and numerical estimate of the analytical result for . From both the approaches, we get the result: .
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