Instantaneous Measurement of Nonlocal Variables
نویسنده
چکیده
We ask the question: is it possible to measure nonlocal properties of a state instantaneously? Relativistic causality restricts how this can be done, but we show here, for the bipartite two dimensional case, that every nonlocal variable of the system can be measured instantaneously. A necessary condition for a general nonlocal measurement on a bipartite system is presented. This essay was written and submitted as part of the University of Cambridge’s Part III Mathematics in 2006. Many thanks to Berry Groisman for being a helpful supervisor. Corrections have been added since submission.
منابع مشابه
Instantaneous measurement of nonlocal variables.
It is shown, under the assumption of the possibility to perform an arbitrary local operation, that all nonlocal variables related to two or more separate sites can be measured instantaneously, except for a finite time required for bringing to one location the classical records from these sites which yield the result of the measurement. It is a verification measurement: it yields reliably the ei...
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تاریخ انتشار 2006