dorsal/arxiv
View SchemaQuantum Computation using Decoherence-Free States of the Physical Operator Algebra
| Authors | Sergio De Filippo |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/9910005 |
| URL | https://arxiv.org/abs/quant-ph/9910005 |
| DOI | 10.1103/PhysRevA.62.052307 |
Abstract
The states of the physical algebra, namely the algebra generated by the operators involved in encoding and processing qubits, are considered instead of those of the whole system-algebra. If the physical algebra commutes with the interaction Hamiltonian, and the system Hamiltonian is the sum of arbitrary terms either commuting with or belonging to the physical algebra, then its states are decoherence free. One of the considered examples shows that, for a uniform collective coupling to the environment, the smallest number of physical qubits encoding a decoherence free logical qubit is reduced from four to three.
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"abstract": "The states of the physical algebra, namely the algebra generated by the\noperators involved in encoding and processing qubits, are considered instead of\nthose of the whole system-algebra. If the physical algebra commutes with the\ninteraction Hamiltonian, and the system Hamiltonian is the sum of arbitrary\nterms either commuting with or belonging to the physical algebra, then its\nstates are decoherence free. One of the considered examples shows that, for a\nuniform collective coupling to the environment, the smallest number of physical\nqubits encoding a decoherence free logical qubit is reduced from four to three.",
"arxiv_id": "quant-ph/9910005",
"authors": [
"Sergio De Filippo"
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"quant-ph",
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"hep-th"
],
"doi": "10.1103/PhysRevA.62.052307",
"title": "Quantum Computation using Decoherence-Free States of the Physical Operator Algebra",
"url": "https://arxiv.org/abs/quant-ph/9910005"
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