Usaj, G; Baranger, HU, *Coulomb Blockade Peak Spacing Distribution: The Interplay of Temperature
and Spin*,
Phys. Rev. B, vol. 64 no. 20
(2001),
pp. 201319 [0108027v1], [doi] .
**Abstract:**

*We calculate the Coulomb Blockade peak spacing distribution at finite
temperature using the recently introduced ``universal Hamiltonian'' to describe
the e-e interactions. We show that the temperature effect is important even at
kT~0.1\Delta (\Delta is the single-particle mean level spacing). This
sensitivity arises because: (1) exchange reduces the minimum energy of
excitation from the ground state and (2) the entropic contribution depends on
the change of the spin of the quantum dot. Including the leading corrections to
the universal Hamiltonian yields results in quantitative agreement with the
experiments. Surprisingly, temperature appears to be the most important effect.*