dorsal/arxiv
View SchemaFidelities for transformations of unknown quantum states
| Authors | Lars Bojer Madsen, Klaus Molmer |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0512005 |
| URL | https://arxiv.org/abs/quant-ph/0512005 |
Abstract
We present a general theoretical formalism to compute the fidelity of transformations of unknown quantum states. We then focus on the case of Gaussian transformations of continuous variable quantum systems, where, for the case of a Gaussian distribution of displaced coherent states, the theory is readily tractable by a covariance matrix formalism. We present analytical results for recently implemented teleportation and memory storage protocols for continuous variables.
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"abstract": "We present a general theoretical formalism to compute the fidelity of\ntransformations of unknown quantum states. We then focus on the case of\nGaussian transformations of continuous variable quantum systems, where, for the\ncase of a Gaussian distribution of displaced coherent states, the theory is\nreadily tractable by a covariance matrix formalism. We present analytical\nresults for recently implemented teleportation and memory storage protocols for\ncontinuous variables.",
"arxiv_id": "quant-ph/0512005",
"authors": [
"Lars Bojer Madsen",
"Klaus Molmer"
],
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"title": "Fidelities for transformations of unknown quantum states",
"url": "https://arxiv.org/abs/quant-ph/0512005"
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