Pseudospin and Quantum Computation in Semiconductor Nanostructures
arXiv:cond-mat/0503257 · doi:10.1088/1367-2630/7/1/177
Abstract
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.
13 pages, 6 figures, New Journal of Physics Focus Issue on "Solid State Quantum Information"
References in corpus (20)
- Quantum Computation with Quantum Dots
- Elementary gates for quantum computation
- Coherent control of macroscopic quantum states in a single-Cooper-pair box
- The Physical Implementation of Quantum Computation
- Electron transport through double quantum dots
- Single-shot read-out of an individual electron spin in a quantum dot
- NMR Techniques for Quantum Control and Computation
- Bose-Einstein Condensation of Excitons in Bilayer Electron Systems
- Evidence for a Goldstone Mode in a Double Layer Quantum Hall System
- Charge echo in a Cooper-pair box
- Cotunneling Spectroscopy in Few-Electron Quantum Dots
- Silicon quantum computation based on magnetic dipolar coupling
- One-Loop Amplitudes in Euclidean Quantum Gravity
- Interplay between Zeeman Coupling and Swap Action in Spin-based Quantum Computer Models: Error Correction in Inhomogeneous Magnetic Fields
- Single-dot spectroscopy via elastic single-electron tunneling through a pair of coupled quantum dots
- Molecular phases in coupled quantum dots
- An exchange-correlation energy for a two-dimensional electron gas in a magnetic field
- Quantum-Hall Quantum-Bits
- Pseudospin Quantum Computation in Semiconductor Nanostructures
- Even-Odd Effect in Spontaneously Coherent Bilayer Quantum Hall Droplets