Magnetotransport in a chaotic scattering cavity with tunable electron density

Modular recursive Green’s function method for ballistic quantum transport

“…3 Recently, the study of quantum transport through open billiards has received considerable attention due to advances in the fabrication of semiconductor structures which led to the experimental realization of phase coherent scattering devices. [4][5][6][7] The transport properties of these microstructures are dominated by quantum interference in the ballistic regime, resulting in strong conductance fluctuations. The interference pattern depends on the shape of the cavity, the opening of the attached wave guide, and the wavelength of the incident electron.…”

Conductance distribution of a quantum dot with nonideal single-channel leads

“…The theory is relevant for experiments on chaotic scattering in quantum dots with adjustable point contacts, which are of great current interest. [13][14][15] This work was supported by the Dutch Science Foundation NWO/FOM. FIGURES FIG.…”

Gauge-invariant theory for semiclassical magnetotransport through ballistic microstructures

“…[2][3][4] In Figs. 8 and 9 we present the comparison between ex- perimental data, a full quantum calculation, and different semiclassical approximations for the stadium with different geometries.…”

“…Investigations of magnetoconductance fluctuations have become a focal point for studies of regular and chaotic dynamics on a microscopic scale. [2][3][4][5][6] A relation between periodic conductance fluctuations and scars in the wave functions has been pointed out. 7,8 Quantum mechanically, ballistic transport through the microstructure represents a two-dimensional phase-coherent scattering problem of electrons entering through the entrance lead and scattering at the potential given by the walls of the structure before exiting through the same lead ͑reflection͒ or another lead ͑transmission͒.…”