Quantum interference effects in electronic transport through nanotube contacts

Interplay of magneto-elastic and polaronic effects in electronic transport through suspended carbon-nanotube quantum dots

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Novel quantum interference effects in transport through molecular radicals.

We investigate electronic transport through molecular radicals and predict a correlation-induced transmission node arising from destructive interference between transport contributions from different charge states of the molecule. This quantum interference effect has no single-particle analog and cannot be described by effective single-particle theories. Large errors in the thermoelectric prope...

Quantum interference effects in particle transport through square lattices.

We study the transport of a quantum particle through square lattices of various sizes by employing the tight-binding Hamiltonian from quantum percolation. Input and output semi-infinite chains are attached to the lattice either by diagonal point-to-point contacts or by a busbar connection. We find resonant transmission and reflection occurring whenever the incident particle's energy is near an ...

Electronic transport in quantum point contacts for undergraduate students

Thermal enhancement of interference effects in quantum point contacts.

We study an electron interferometer formed with a quantum point contact and a scanning probe tip in a two-dimensional electron gas. The images giving the conductance as a function of the tip position exhibit fringes spaced by half the Fermi wavelength. For a contact opened at the edges of a quantized conductance plateau, the fringes are enhanced as the temperature T increases and can persist be...