dorsal/arxiv
View SchemaQuantum computation with coupled-quantum-dots embedded in optical microcavities
| Authors | Xin-Qi Li, YiJing Yan |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0203145 |
| URL | https://arxiv.org/abs/quant-ph/0203145 |
| DOI | 10.1103/PhysRevB.65.205301 |
| Journal | Phys. Rev. B 65, 205301 (2002) |
Abstract
Based on an idea that spatial separation of charge states can enhance quantum coherence, we propose a scheme for quantum computation with quantum bit (qubit) constructed from two coupled quantum dots. Quantum information is stored in electron-hole pair state with the electron and hole locating in different dots, which enables the qubit state being very long-lived. Universal quantum gates involving any pair of qubits are realized by coupling the quantum dots through cavity photon which is a hopeful candidate to transfer long-range information. Operation analysis is carried out by estimating the gate time versus the decoherence time.
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"abstract": "Based on an idea that spatial separation of charge states can enhance quantum\ncoherence, we propose a scheme for quantum computation with quantum bit (qubit)\nconstructed from two coupled quantum dots. Quantum information is stored in\nelectron-hole pair state with the electron and hole locating in different dots,\nwhich enables the qubit state being very long-lived. Universal quantum gates\ninvolving any pair of qubits are realized by coupling the quantum dots through\ncavity photon which is a hopeful candidate to transfer long-range information.\nOperation analysis is carried out by estimating the gate time versus the\ndecoherence time.",
"arxiv_id": "quant-ph/0203145",
"authors": [
"Xin-Qi Li",
"YiJing Yan"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevB.65.205301",
"journal_ref": "Phys. Rev. B 65, 205301 (2002)",
"title": "Quantum computation with coupled-quantum-dots embedded in optical microcavities",
"url": "https://arxiv.org/abs/quant-ph/0203145"
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