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# Search results

50 records were found.

Comment: 1 page

## Old and new results on multicritical points

Comment: Paper presented at the December 2001 Rutgers meeting, celebrating Michael Fisher's 70th birthday

## Diffusion limited aggregation as a Markovian process. Part I: bond-sticking conditions

Comment: 24 pages, 20 figures

## Diffusion limited aggregation as a Markovian process: site-sticking conditions

Comment: 27 Revtex pages, 16 figures

## Scaling in a simple model for surface growth in a random medium

Comment: 11 pages including numerous figures; for Int. J. Mod. Phys. C

## Are Barabasi-Albert networks self-averaging?

Comment: 4 pages including 4 figures; 5 pages in improved version, ref.2 added

## Exact solution of diffusion limited aggregation in a narrow cylindrical geometry

Comment: 18 pages RevTex, 6 eps figures

## Measuring the Kondo effect in the Aharonov-Bohm interferometer

The conductance ${\cal G}$ of an Aharonov-Bohm interferometer (ABI), with a strongly correlated quantum dot on one arm, is expressed in terms of the dot Green function, $G_{dd}$, the magnetic flux $\phi$ and the non-interacting parameters of the ABI. We show that one can extract $G_{dd}$ from the observed oscillations of ${\cal G}$ with $\phi$, for both closed and open ABI's. In the latter case, the phase shift $\beta$ deduced from ${\cal G} \approx A+B\cos(\phi+\beta)$ depends strongly on the ABI's parameters, and usually $\beta \ne \pi/2$. These parameters may also reduce the Kondo temperature, eliminating the Kondo behavior.

## Discrete versus continuous wires on quantum networks

Comment: Special P G de Gennes memorial issue, JPC

## Quantized pumped charge due to surface acoustic waves in a 1D channel

The adiabatic pumped current through an unbiased one dimensional (1D) channel, connected to two 1D leads and subject to surface acoustic waves (SAW), is calculated exactly for non-interacting electrons. For a broad range of the parameters, quantum interference generates a staircase structure of the time-averaged current, similar to experimental observations. This corresponds to integer values (in units of electronic charge) of the charge pumped during each period of the SAW. We also find staircases for higher harmonics. Quantum interference can thus replace Coulomb blockade in explaining the pumped charge quantization, particularly in the SAW experiments.