Quantum no-deleting principle and some of its implications
| dc.creator | Pati, Arun K. | |
| dc.creator | Braunstein, Samuel L. | |
| dc.date | 2000-07-31 | |
| dc.date.accessioned | 2026-07-07T06:00:32Z | |
| dc.date.available | 2026-07-07T06:00:32Z | |
| dc.description | Unmeasureability of a quantum state has important consequences in practical implementation of quantum computers. Like copying, deleting of an unknown state from among several copies is prohibited. This is called no-deletion prinicple. Here, we present a no deleting principle for qudits. We obtain a bound on $N$-to-$M$ deleting and show that the quality of deletion drops exponentially with the number of copies to be deleted. In addition, we investigate conditional, state-dependent and approximate quantum deleting of unknown states. We prove that unitarity does not allow us to delete copies from an alphabet of two non-orthogonal states exactly. Further, we show that no-deleting principle is consistent with no-signalling. | |
| dc.description | Latex 4 pages, no-figures (Based on this a talk was presented in Benasque Science Center held from July 2-21, 2000) | |
| dc.identifier | https://arxiv.org/abs/quant-ph/0007121 | |
| dc.identifier | http://arxiv.org/abs/quant-ph/0007121 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/88996 | |
| dc.subject | Quantum Physics | |
| dc.title | Quantum no-deleting principle and some of its implications | |
| dc.type | text |