参考资源的消耗
The Consumption of Reference Resources
摘要：
在U（1）-超选择规则的操作限制下，粒子数本征态之间包含相干性的态构成一个资源。这样的资源可以用于促进在系统上的操作，否则这些操作不能被执行。但是，这样做的过程会消耗引用资源。我们以一个被U（1）-超选择规则禁止的酉运算为例，明确地证明了这一点。
英文摘要：
Under the operational restriction of the U(1)-superselection rule, states that contain coherences between eigenstates of particle number constitute a resource. Such resources can be used to facilitate operations upon systems that otherwise cannot be performed. However, the process of doing this consumes reference resources. We show this explicitly for an example of a unitary operation that is forbidden by the U(1)-superselection rule.
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