dorsal/arxiv
View SchemaUniversal quantum computation with spin-1/2 pairs and Heisenberg exchange
| Authors | Jeremy Levy |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0101057 |
| URL | https://arxiv.org/abs/quant-ph/0101057 |
| DOI | 10.1103/PhysRevLett.89.147902 |
Abstract
An efficient and intuitive framework for universal quantum computation is presented that uses pairs of spin-1/2 particles to form logical qubits and a single physical interaction, Heisenberg exchange, to produce all gate operations. Only two Heisenberg gate operations are required to produce a controlled pi-phase shift, compared to 19 for exchange-only proposals employing three spins. Evolved from well-studied decoherence-free subspaces, this architecture inherits immunity from collective decoherence mechanisms. The simplicity and adaptability of this approach should make it attractive for spin-based quantum computing architectures.
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"abstract": "An efficient and intuitive framework for universal quantum computation is\npresented that uses pairs of spin-1/2 particles to form logical qubits and a\nsingle physical interaction, Heisenberg exchange, to produce all gate\noperations. Only two Heisenberg gate operations are required to produce a\ncontrolled pi-phase shift, compared to 19 for exchange-only proposals employing\nthree spins. Evolved from well-studied decoherence-free subspaces, this\narchitecture inherits immunity from collective decoherence mechanisms. The\nsimplicity and adaptability of this approach should make it attractive for\nspin-based quantum computing architectures.",
"arxiv_id": "quant-ph/0101057",
"authors": [
"Jeremy Levy"
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"quant-ph"
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"doi": "10.1103/PhysRevLett.89.147902",
"title": "Universal quantum computation with spin-1/2 pairs and Heisenberg exchange",
"url": "https://arxiv.org/abs/quant-ph/0101057"
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