Quantum Questions

Preliminary Quantum Questions

8 0h 3c = 1.097× 10 m−1 sets the scale of energy levels, and hence electonic transitions, in hydrogen. Outer electrons in more complex atoms often have energies typical of higher levels in hydrogen. • The fine structure constant α = e2 4π 0~c = 137.04 −1 characterises the strength of the electromagnetic interaction. In hydrogen, it sets the scale of perturbations to the non-relativistic Schrödi...

Open Questions in Quantum Physics

N. CUFARO PETRONI Istituto.Naziona1e di Fisica Nuc1eare Dipartimento di Fisica de1l'Universita 70100, Bari,Italy The physical basis. for a fluidodynamical model of quantum mechanics and the subsequent possibility of a causal, non-local explanation of the EPR paradox are shortly discussed.

Loop Quantum Gravity: Frequently Asked Questions

Prima Facie Questions in Quantum Gravity

The long history of the study of quantum gravity has thrown up a complex web of ideas and approaches. The aim of this article is to unravel this web a little by analysing some of the prima facie questions that can be asked of almost any approach to quantum gravity and whose answers assist in classifying the different schemes. Particular emphasis is placed on (i) the role of background conceptua...

Conceptual Issues, Foundational Questions and Quantum Cosmology

In this workshop rather diverging problems related to quantum gravity and quantum cosmology were discussed. Since it is almost impossible to summarize all these discussions in coherent and integrated expressions, in this report, I give a brief description of the content of each paper in order, with some additional comments on their backgrounds. In order to give a readable presentation, I classi...