arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 0908.1583quant-ph
收藏

概率论与纯化

Probabilistic theories with purification

G. Chiribella, G. M. D'Ariano, P. Perinotti

摘要:

我们调查一般概率理论,其中每个混合状态有一个净化,唯一的可逆通道上的净化系统。我们证明了净化原理等价于每一个物理过程的可逆实现的存在,即每一个物理过程都可以被认为是由系统与环境的可逆相互作用产生的,而环境最终会被丢弃。从纯化原理出发,我们还构造了一个变换与二分态之间的同构,它具有量子力学中Choi-Jamiolkowski同构的所有结构性质.这样的同构允许人们证明量子力学的大部分基本特征,例如在独立实验中给出完美关联的纯二分态的存在,没有干扰的信息,没有所有纯态的联合鉴别,没有克隆,隐形传态,没有编程,没有比特承诺,可校正通道和删除通道之间的互补性,将纠缠破坏通道表征为测量和准备通道等,而不诉诸希尔伯特空间的数学框架。

英文摘要:

We investigate general probabilistic theories in which every mixed state has a purification, unique up to reversible channels on the purifying system. We show that the purification principle is equivalent to the existence of a reversible realization of every physical process, namely that every physical process can be regarded as arising from a reversible interaction of the system with an environment, which is eventually discarded. From the purification principle we also construct an isomorphism between transformations and bipartite states that possesses all structural properties of the Choi-Jamiolkowski isomorphism in quantum mechanics. Such an isomorphism allows one to prove most of the basic features of quantum mechanics, like e.g. existence of pure bipartite states giving perfect correlations in independent experiments, no information without disturbance, no joint discrimination of all pure states, no cloning, teleportation, no programming, no bit commitment, complementarity between correctable channels and deletion channels, characterization of entanglement-breaking channels as measure-and-prepare channels, and others, without resorting to the mathematical framework of Hilbert spaces.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑