Quantum deleting and Signalling
量子物理
2009-11-10 v1
摘要
It is known that if we can clone an arbitrary state we can send signal faster than light. Here, we show that deletion of unknown quantum state against a copy can lead to superluminal signalling. But erasure of unknown quantum state does not imply faster than light signalling.
关键词
引用
@article{arxiv.quant-ph/0305145,
title = {Quantum deleting and Signalling},
author = {Arun K. Pati and Samuel L. Braunstein},
journal= {arXiv preprint arXiv:quant-ph/0305145},
year = {2009}
}
备注
Latex file, 6 pages, no figures