摘要
We consider the thermal behavior of a large number of matrix degrees of freedom in the planar limit. We work in0+1dimensions, withDmatrices, and use1/Das an expansion parameter. This can be thought of as a non-commutative large- Dvector model, with two independent quartic couplings for the two different orderings of the matrices. We compute a thermal two-point correlator to𝓞(1/D)and find that the degeneracy present at largeDis lifted, with energy levels split by an amount∼ 1/√D̅ . This implies a timescale for thermal dissipation∼ √D̅ . At high temperatures dissipation is predominantly due to one of the two quartic couplings.