Coherent control of interacting electrons in quantum dots via navigation in the energy spectrum
arXiv:cond-mat/0703192 · doi:10.1103/PhysRevLett.99.036806
Abstract
Quantum control of the wave function of two interacting electrons confined in quasi-one-dimensional double-well semiconductor structures is demonstrated. The control strategies are based on the knowledge of the energy spectrum as a function of an external uniform electric field. When two low-lying levels have avoided crossings our system behaves dynamically to a large extent as a two-level system. This characteristic is exploited to implement coherent control strategies based on slow (adiabatic passage) and rapid (diabatic Landau-Zener transition) changes of the external field. We apply this method to reach desired target states that lie far in the spectrum from the initial state.
Published version. 4 pages, 3 figures
References in corpus (4)
- Localization of interacting electrons in quantum dot arrays driven by an ac-field
- Localization and entanglement of two interacting electrons in a quantum-dot molecule
- Interaction-induced chaos in a two-electron quantum-dot system
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Cited by in corpus (17)
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- Quenched dynamics of entangled states in correlated quantum dots
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- Enhancement of quantum speed limit time due to cooperative effects in multilevel systems
- Coherent adiabatic theory of two-electron quantum dot molecules in external spin baths
- Quantum ratchet control - harvesting on Landau-Zener transitions
- Quantum control of a model qubit based on a multi-layered quantum dot
- Time-optimal control fields for quantum systems with multiple avoided crossings
- Landau-Zener transitions in a semiconductor quantum dot
- Control of a two-electron quantum ring with an external magnetic field
- Landau-Zener transitions in the presence of harmonic noise
- Time evolution of an entangled initial state in coupled quantum dots with Coulomb correlations
- Tuning the quantum tunneling and quantum information properties among the trion states in coupled quantum dots
- Fast optical control of a coded qubit in a triple quantum dot
- Signatures of molecular correlations in the few-electron dynamics of coupled quantum dots