Uncertainty principle for quantum instruments and computing
| dc.creator | Ozawa, Masanao | |
| dc.date | 2003-10-11 | |
| dc.date | 2004-08-11 | |
| dc.date.accessioned | 2026-07-07T06:08:03Z | |
| dc.date.available | 2026-07-07T06:08:03Z | |
| dc.description | Recently, universally valid uncertainty relations have been established to set a precision limit for any instruments given a disturbance constraint in a form more general than the one originally proposed by Heisenberg. One of them leads to a quantitative generalization of the Wigner-Araki-Yanase theorem on the precision limit of measurements under conservation laws. Applying this, a rigorous lower bound is obtained for the gate error probability of physical implementations of Hadamard gates on a standard qubit of a spin 1/2 system by interactions with control fields or ancilla systems obeying the angular momentum conservation law. | |
| dc.description | 13 pages, Revtex4 | |
| dc.identifier | https://arxiv.org/abs/quant-ph/0310071 | |
| dc.identifier | http://arxiv.org/abs/quant-ph/0310071 | |
| dc.identifier | International Journal of Quantum Information (IJQI) 1, 569--588 (2003) | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/91503 | |
| dc.subject | Quantum Physics | |
| dc.title | Uncertainty principle for quantum instruments and computing | |
| dc.type | text |