منابع مشابه
Quantum Bochner theorems and incompatible observables
A quantum version of Bochner’s theorem characterising Fourier transforms of probability measures on locally compact Abelian groups gives a characterisation of the Fourier transforms of Wigner quasi-joint distributions of position and momentum. An analogous quantum Bochner theorem characterises quasi-joint distributions of components of spin. In both cases quantum states in which a true distribu...
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Measurements are the very basis of Physics. In quantum mechanics they assume even a more fundamental role since observables can have undetermined values that “collapse” on a specific one only when a strong measurement (described by a projection operator) is done. Furthermore, a crucial feature of quantum measurement is that measuring one observable completely erases the information on the corre...
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ژورنال
عنوان ژورنال: Physics Letters A
سال: 2014
ISSN: 0375-9601
DOI: 10.1016/j.physleta.2014.04.026