Universal parametric correlations of conductance peaks in quantum dots

Journal Article · Fri Mar 01 04:00:00 EST 1996 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.76.1711· OSTI ID:284414

Alhassid, Y; Attias, H ^[1]

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1. Center for Theoretical Physics, Sloane Physics Laboratory, Yale University, New Haven, Connecticut 06520 (United States)

We compute the parametric correlation function of the conductance peaks in chaotic and weakly disordered quantum dots in the Coulomb blockade regime and demonstrate its universality upon an appropriate scaling of the parameter. For a symmetric dot we show that this correlation function is affected by breaking time-reversal symmetry but is independent of the details of the channels in the external leads. We derive a new scaling which depends on the eigenfunctions alone and can be extracted directly from the conductance peak heights. Our results are in excellent agreement with model simulations of a disordered quantum dot. {copyright} {ital 1996 The American Physical Society.}

• Research Organization: Yale University
• DOE Contract Number: FG02-91ER40608
• OSTI ID: 284414
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 10 Vol. 76; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
CHAOTIC SYSTEMS
CORRELATION FUNCTIONS
DISORDERED SYSTEMS
QUANTIZATION
QUANTUM DOTS
SEMICONDUCTOR MATERIALS
T INVARIANCE
TRANSPORT THEORY