 
Summary: Conductancepeak height correlations for a Coulombblockaded quantum dot
in a weak magnetic field
Stephan Braig, Shaffique Adam, and Piet W. Brouwer
Laboratory of Atomic and Solid State Physics, Cornell University, Ithaca, New York 148532501, USA
Received 12 May 2003; published 25 July 2003
We consider statistical correlations between the heights of conductance peaks corresponding to two different
levels in a Coulombblockaded quantum dot. Correlations exist for two peaks at the same magnetic field if the
field does not fully break timereversal symmetry as well as for peaks at different values of a magnetic field
that fully breaks timereversal symmetry. Our results are also relevant to Coulombblockade conductance peak
height statistics in the presence of weak spinorbit coupling in a chaotic quantum dot.
DOI: 10.1103/PhysRevB.68.035323 PACS number s : 73.23.Hk, 05.60.Gg, 73.63.Kv
I. INTRODUCTION
Measurement of conductance peak heights in a Coulomb
blockaded quantum dot is one of few experimental tools to
access properties of singleelectron wave functions in quan
tum dots. Experimentally, the probability distribution of the
conductance peak heights in quantum dots with an irregular
shape was found to be in good agreement with predictions
from randommatrix theory RMT ,1
both without magnetic
