Storing quantum dynamics in quantum states: stochastic programmable gate for U(1) operations
量子物理
2009-11-07 v1
摘要
We show how quantum dynamics can be captured in the state of a quantum system, in such a way that the system can be used to stochastically perform, at a later time, the stored transformation perfectly on some other quantum system. Thus programmable quantum gates for quantum information processing are feasible if some probability of failure -that we show to decrease exponentially with the size of the storing resources- is allowed.
引用
@article{arxiv.quant-ph/0102037,
title = {Storing quantum dynamics in quantum states: stochastic programmable gate for U(1) operations},
author = {G. Vidal and L. Masanes and J. I. Cirac},
journal= {arXiv preprint arXiv:quant-ph/0102037},
year = {2009}
}
备注
RevTex, 4 pages, 3 figures. Extension of quant-ph/0012067, including several results concerning optimality of the scheme for storage of operations