Storing quantum dynamics in quantum states: A stochastic programmable gate

被引：73

作者：

Vidal, G ^{[1
]}

Masanes, L

Cirac, JI

机构：

[1] Univ Innsbruck, Inst Theoret Phys, A-6020 Innsbruck, Austria

[2] Univ Barcelona, Dept Estructura & Constituents Mat, E-08028 Barcelona, Spain

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 88卷 / 04期

关键词：

Logic gates - Mathematical operators - Mathematical transformations - Probability - Stochastic programming - Vectors;

D O I：

10.1103/PhysRevLett.88.047905

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We show how to encode quantum dynamics 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 on some other quantum system. The probability of failure decreases exponentially with the number of qubits that store the transformation. We discuss optimality of this scheme, whose applications include viability of a (stochastic) programmable quantum gate and the teleportation of quantum transformations using entanglement and unidirectional classical communication.

引用

页码：4 / 479054

页数：4

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