Fidelity of quantum operations
| dc.creator | Pedersen, Line Hjortshoj | |
| dc.creator | Molmer, Klaus | |
| dc.creator | Moller, Niels Martin | |
| dc.date | 2007-01-19 | |
| dc.date | 2007-02-05 | |
| dc.date.accessioned | 2026-07-07T12:46:51Z | |
| dc.date.available | 2026-07-07T12:46:51Z | |
| dc.description | We present a derivation and numerous applications of a compact explicit formula for the average fidelity of a quantum operation on a finite dimensional quantum system. The formula can be applied to averages over particularly relevant subspaces; it is easily generalized to multi-component systems, and as a special result, we show that when the same completely positive trace-preserving map is applied to a large number of qubits with one-bit fidelity F close to unity, the average fidelity of the operation on the full K-bit register scales as $F^{3K/2}$. | |
| dc.description | 5 pages, no figures. The text has been modified to acknowledge that our Eq.(1) has appeared already in quant-ph/0503243 and quant-ph/0512217 | |
| dc.identifier | https://arxiv.org/abs/quant-ph/0701138 | |
| dc.identifier | http://arxiv.org/abs/quant-ph/0701138 | |
| dc.identifier | Phys. Lett. A 367 (2007), no. 1-2, 47--51. | |
| dc.identifier | doi:10.1016/j.physleta.2007.02.069 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/221523 | |
| dc.subject | Quantum Physics | |
| dc.title | Fidelity of quantum operations | |
| dc.type | text |