dorsal/arxiv
View SchemaFalse qubits II. Entanglement of Josephson junctions
| Authors | Robert Alicki |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0609122 |
| URL | https://arxiv.org/abs/quant-ph/0609122 |
Abstract
The recent experimental evidence for entangled states of two Josephson junction qubits is briefly discussed. It is argued that the interpretation of the experimental data strongly depends on the assumed theoretical model. Namely, the qubit states are supposed to be the lowest lying eigenstates of a certain effective Hamiltonian and hence automatically orthogonal, while the simple analysis within a more fundamental many-particle model shows that those states should strongly overlap. This makes the standard interpretation of the measurement procedure questionable.
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"abstract": "The recent experimental evidence for entangled states of two Josephson\njunction qubits is briefly discussed. It is argued that the interpretation of\nthe experimental data strongly depends on the assumed theoretical model.\nNamely, the qubit states are supposed to be the lowest lying eigenstates of a\ncertain effective Hamiltonian and hence automatically orthogonal, while the\nsimple analysis within a more fundamental many-particle model shows that those\nstates should strongly overlap. This makes the standard interpretation of the\nmeasurement procedure questionable.",
"arxiv_id": "quant-ph/0609122",
"authors": [
"Robert Alicki"
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"title": "False qubits II. Entanglement of Josephson junctions",
"url": "https://arxiv.org/abs/quant-ph/0609122"
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