Pseudospin and Quantum Computation in Semiconductor Nanostructures

Details Pseudospin and Quantum Computation in Semiconductor Nanostructures Pseudospin and Quantum Computation in Semiconductor Nanostructures

2005-03-10

arxiv.org/abs/cond-mat/0503257v2

New J. Phys. 7 177 (2005)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

13 pages, 6 figures, New Journal of Physics Focus Issue on "Solid State Quantum Information"

Scientific paper

10.1088/1367-2630/7/1/177

We review the theoretical aspects of pseudospin quantum computation using vertically coupled quantum dots in the quantum Hall regime. We discuss the robustness and addressability of these collective, charge-based qubits. The low energy Hilbert space of a coupled set of qubits yields an effective quantum Ising model tunable through external gates. An experimental prediction of an even-odd effect in the Coulomb blockade spectra of the coupled quantum dot system probes the parameter regime necessary for realization of these qubits.

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