dorsal/arxiv
View SchemaSecurity Trade-offs in Ancilla-Free Quantum Bit Commitment in the Presence of Superselection Rules
| Authors | D. P. DiVincenzo, J. A. Smolin, B. M. Terhal |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0405111 |
| URL | https://arxiv.org/abs/quant-ph/0405111 |
| DOI | 10.1088/1367-2630/6/1/080 |
| Journal | New Journal of Physics 6, 80 (2004) |
Abstract
Security trade-offs have been established for one-way bit commitment in quant-ph/0106019. We study this trade-off in two superselection settings. We show that for an `abelian' superselection rule (exemplified by particle conservation) the standard trade-off between sealing and binding properties still holds. For the non-abelian case (exemplified by angular momentum conservation) the security trade-off can be more subtle, which we illustrate by showing that if the bit-commitment is forced to be ancilla-free an asymptotically secure quantum bit commitment is possible.
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"abstract": "Security trade-offs have been established for one-way bit commitment in\nquant-ph/0106019. We study this trade-off in two superselection settings. We\nshow that for an `abelian\u0027 superselection rule (exemplified by particle\nconservation) the standard trade-off between sealing and binding properties\nstill holds. For the non-abelian case (exemplified by angular momentum\nconservation) the security trade-off can be more subtle, which we illustrate by\nshowing that if the bit-commitment is forced to be ancilla-free an\nasymptotically secure quantum bit commitment is possible.",
"arxiv_id": "quant-ph/0405111",
"authors": [
"D. P. DiVincenzo",
"J. A. Smolin",
"B. M. Terhal"
],
"categories": [
"quant-ph"
],
"doi": "10.1088/1367-2630/6/1/080",
"journal_ref": "New Journal of Physics 6, 80 (2004)",
"title": "Security Trade-offs in Ancilla-Free Quantum Bit Commitment in the Presence of Superselection Rules",
"url": "https://arxiv.org/abs/quant-ph/0405111"
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