dorsal/arxiv
View SchemaOptically Driven Qubits in Artificial Molecules
| Authors | J. H. Oh, D. Ahn, S. W. Hwang |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0005057 |
| URL | https://arxiv.org/abs/quant-ph/0005057 |
| DOI | 10.1103/PhysRevA.62.052306 |
Abstract
We present novel models of quantum gates based on coupled quantum dots in which a qubit is regarded as the superposition of ground states in each dot. Coherent control on the qubit is performed by both a frequency and a polarization of a monochromatic light pulse illuminated on the quantum dots. We also show that a simple combination of two single qubit gates functions as a controlled NOT gate resulting from an electron-electron interaction. To examine the decoherence of quantum states, we discuss electronic relaxation contributed mainly by LA phonon processes.
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"abstract": "We present novel models of quantum gates based on coupled quantum dots in\nwhich a qubit is regarded as the superposition of ground states in each dot.\nCoherent control on the qubit is performed by both a frequency and a\npolarization of a monochromatic light pulse illuminated on the quantum dots. We\nalso show that a simple combination of two single qubit gates functions as a\ncontrolled NOT gate resulting from an electron-electron interaction. To examine\nthe decoherence of quantum states, we discuss electronic relaxation contributed\nmainly by LA phonon processes.",
"arxiv_id": "quant-ph/0005057",
"authors": [
"J. H. Oh",
"D. Ahn",
"S. W. Hwang"
],
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"quant-ph"
],
"doi": "10.1103/PhysRevA.62.052306",
"title": "Optically Driven Qubits in Artificial Molecules",
"url": "https://arxiv.org/abs/quant-ph/0005057"
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