dorsal/arxiv
View SchemaA Hamiltonian for quantum copying
| Authors | Dima Mozyrsky, Vladimir Privman, Mark Hillery |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/9609018 |
| URL | https://arxiv.org/abs/quant-ph/9609018 |
| DOI | 10.1016/S0375-9601(96)00939-5 |
| Journal | Phys.Lett.A226:253-256,1997 |
Abstract
We derive an explicit Hamiltonian for copying the basis up and down states of a quantum two-state system - a qubit - onto n "copy" qubits initially all prepared in the down state. In terms of spin components, for spin-1/2 particle spin states, the resulting Hamiltonian involves n- and (n+1)-spin interactions. The case n=1 also corresponds to a quantum-computing controlled-NOT gate.
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"abstract": "We derive an explicit Hamiltonian for copying the basis up and down states of\na quantum two-state system - a qubit - onto n \"copy\" qubits initially all\nprepared in the down state. In terms of spin components, for spin-1/2 particle\nspin states, the resulting Hamiltonian involves n- and (n+1)-spin interactions.\nThe case n=1 also corresponds to a quantum-computing controlled-NOT gate.",
"arxiv_id": "quant-ph/9609018",
"authors": [
"Dima Mozyrsky",
"Vladimir Privman",
"Mark Hillery"
],
"categories": [
"quant-ph",
"cond-mat.mtrl-sci"
],
"doi": "10.1016/S0375-9601(96)00939-5",
"journal_ref": "Phys.Lett.A226:253-256,1997",
"title": "A Hamiltonian for quantum copying",
"url": "https://arxiv.org/abs/quant-ph/9609018"
},
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