The Wigner-Araki-Yanase theorem shows that conservation laws limit the accuracy of measurement.We generalize the argument to show that conservation laws..
Abstract: The process of measuring a two-level quantum system was examined by applying
Hamiltonian formalism. For the measurement of an observable that ..
Abstract: The purpose of this paper is to survey mathematical foundations of quantum
information. We present an axiomatic construction of quantum measure..
The WAY theorem establishes an important constraint that conservation laws impose on quantum mechanical measurements. We formulate the WAY theorem in ..