Strongly Incompatible Quantum Devices
Strongly Incompatible Quantum Devices
复制标题
强烈不兼容的量子设备
DOI：
10.1007/s10701-013-9761-1
复制
发表时间：
2014
影响因子：
1.5
通讯作者：
Daniel Reitzner
中科院分区：
文献类型：
--
作者：
Teiko Heinosaari;Takayuki Miyadera;Daniel Reitzner
量子力学的基本特征之一是存在量子可观测量而不需要同时测量。在这项工作中，我们扩大了联合可测性的概念，各种可能的测量设备，我们称之为关系相容性。如果两个设备不能作为单个测量设置的一部分实现，则它们是不兼容的。我们还引入了一个更严格的不相容性概念，即强不相容性。对不相容性和强不相容性进行了严格的描述，并举例说明了它们之间的区别。
The fact that there are quantum observables without a simultaneous measurement is one of the fundamental characteristics of quantum mechanics. In this work we expand the concept of joint measurability to all kinds of possible measurement devices, and we call this relationcompatibility. Two devices areincompatibleif they cannot be implemented as parts of a single measurement setup. We introduce also a more stringent notion of incompatibility,strong incompatibility. Both incompatibility and strong incompatibility are rigorously characterized and their difference is demonstrated by examples.