## Proceedings of the International School of Physics "Enrico Fermi.", Volume 11N. Zanichelli, 1960 - Nuclear physics |

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Page 149

Topological aspect of

classical system turns out to be topological in character ( * ) . This feature shows

up most directly when

...

Topological aspect of

**quantum theory**. - One feature about the quantization of aclassical system turns out to be topological in character ( * ) . This feature shows

up most directly when

**quantum mechanics**is formulated by Feynman's method of...

Page 150

mine ** classes of histories gives the commutator of the operator formulation of

appearance in the foundations of the Feynman method . Commutators receive ...

mine ** classes of histories gives the commutator of the operator formulation of

**quantum mechanics**. Yet non - commutative operators never explicitly put in anappearance in the foundations of the Feynman method . Commutators receive ...

Page 153

Of course commutators have a stature in Feynman's description of

that form of the theory , the commutators are needed in order to define the

algebra of ...

Of course commutators have a stature in Feynman's description of

**quantum****mechanics**which is secondary to their part in the operator form of the theory . Inthat form of the theory , the commutators are needed in order to define the

algebra of ...

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### Contents

GENERALITÀ | 1 |

PARTE PRIMA Problemi teorici | 9 |

PARTE SECONDA Correlazioni angolari polarizzazioni e decadimenti beta | 197 |

4 other sections not shown

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### Common terms and phrases

allowed angle angular assumed calculated charge classical combination completely component connection conservation consider constant contribute correlation corresponding coupling curvature decay defined density dependence derived described determination direction discussed effects electric electromagnetic field electron elementary elements emission energy equations example existence experiment experimental expression factor Fermi field final finds formula function geometrodynamics geometry give given gravitational histories initial interaction invariance known leads limit magnetic mass matrix means measured metric modes momentum neutrino neutron nuclei nucleons observed obtained operators pairs parity particle phase Phys physics polarization possible present principle problem properties purely quantity quantum quantum mechanics radiation ratio reason reference relation relativity requires respect result scattering shown shows solution space spin symmetry Table theory transformation transitions universe vector wave weak zero