dorsal/arxiv
View SchemaComparison of LOQC C-sign gates with ancilla inefficiency and an improvement to functionality under these conditions
| Authors | A. P. Lund, T. B. Bell, T. C. Ralph |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0308071 |
| URL | https://arxiv.org/abs/quant-ph/0308071 |
| DOI | 10.1103/PhysRevA.68.022313 |
| Journal | Phys.Rev.A 68, 022313 (2003). |
Abstract
We compare three proposals for non-deterministic C-sign gates implemented using linear optics and conditional measurements with non-ideal ancilla mode production and detection. The simplified KLM gate [Ralph et al, Phys.Rev.A {\bf 65}, 012314 (2001)] appears to be the most resilient under these conditions. We also find that the operation of this gate can be improved by adjusting the beamsplitter ratios to compensate to some extent for the effects of the imperfect ancilla.
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"abstract": "We compare three proposals for non-deterministic C-sign gates implemented\nusing linear optics and conditional measurements with non-ideal ancilla mode\nproduction and detection. The simplified KLM gate [Ralph et al, Phys.Rev.A {\\bf\n65}, 012314 (2001)] appears to be the most resilient under these conditions. We\nalso find that the operation of this gate can be improved by adjusting the\nbeamsplitter ratios to compensate to some extent for the effects of the\nimperfect ancilla.",
"arxiv_id": "quant-ph/0308071",
"authors": [
"A. P. Lund",
"T. B. Bell",
"T. C. Ralph"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.68.022313",
"journal_ref": "Phys.Rev.A 68, 022313 (2003).",
"title": "Comparison of LOQC C-sign gates with ancilla inefficiency and an improvement to functionality under these conditions",
"url": "https://arxiv.org/abs/quant-ph/0308071"
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