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We consider the Sachdev-Ye-Kitaev (SYK) model, where interaction involves q fermions at a time. We find the 1/q^2 correction to the thermal two-point function in the large q expansion. Using this result, we find the 1/q^3 correction to the SYK free energy.
Grigory Tarnopolsky (Tue,) studied this question.
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