## Proceedings of the International School of Physics "Enrico Fermi.", Volume 72N. Zanichelli, 1979 - Nuclear physics |

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Page 181

In order to see this, in an intuitive way, let us

and Qs be two quantities with corresponding operators g(Q,) and Q(Q,), and let y

> be an ideal physical state such that y, = Ecr cpr and y = Ec, %. , where the <pr's

...

In order to see this, in an intuitive way, let us

**consider**a simple example. Let Q,and Qs be two quantities with corresponding operators g(Q,) and Q(Q,), and let y

> be an ideal physical state such that y, = Ecr cpr and y = Ec, %. , where the <pr's

...

Page 315

to

dependent observables. The evolution of an observable is given by (3.8) idtA =

— LA. This equation follows from the equality of the expectation values in the two

...

to

**consider**a « Heisenberg picture », keeping the states fixed and having time-dependent observables. The evolution of an observable is given by (3.8) idtA =

— LA. This equation follows from the equality of the expectation values in the two

...

Page 444

accordance with Einstein's field equation.

superspace that describes this dynamics.

on ...

**Consider**a classical history of 3-geometry developing deterministically in time inaccordance with Einstein's field equation.

**Consider**the «leaf of history » insuperspace that describes this dynamics.

**Consider**one of the i3>g?'s tnaf js meton ...

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### Contents

E Amaldi Radioactivity a pragmatic pillar of probabilistic | 1 |

Statistical fluctuations | 10 |

Final remarks | 21 |

Copyright | |

24 other sections not shown

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3-geometry algebra applied assertion atoms axioms Boolean Borel field Borel sets calculus concept conditional probability conditionalization consider corresponding countable course defined definition denote derived deterministic dialog dialog-game disjoint dynamics edited Einstein elements equation equivalent exists experiment finite formal function geometry given Gleason's theorem Hence Hilbert space implies induction initial interaction interpretation irreversible Journ linear magnitude Math mathematical means Neumann non-Boolean notion observable orthogonal orthomodular lattice particle photon Phys physical quantity physical system physical theories physicists positive precision probabilistic probability measure probability space probability theory problem procedure quantum logic quantum mechanics quantum theory quantum-logical question radioactive random variable real numbers relation relative frequency relf represented respect result rule sequence space-time special relativity spin statistical operator subset subspace superspace theorem tion transformation truth universal constants vector velocity von Neumann algebra zero