Alwyn van der Merwe

Fundamental Problems in Quantum Physics

The present special issue of Apeiron fulfills a wish expressed by Franco Selleri when he joined the editorial board just over a year ago. The plan was to solicit short essays from a number of leading theorists of quantum physics on the problem—past, present and future—of achieving a consistent, rational understanding of the microworld, and in particular, to present, in very general terms, thoughtful alternatives to the tortured vision bequeathed to physics by the Copenhagen school. The response to our survey was not as voluminous as we had hoped, though the quality of the essays we received is quite respectable. We placed before our respondents a series of four questions touching on the very essence of the debate over the foundations of quantum mechanics: the prospects of a hidden variable model, the basic problem in quantum theory, the origins and early history of the debate and, finally, possible avenues of development. The questions read as follows:

Ettore Majorana Notes On Theoretical Physics

Volumetto I.- Volumetto II.- Volumetto III.- Volumetto IV.- Volumetto V.- Selected facsimile pages.

Waves and Particles in Light and Matter

Collects most, but not all, of the papers presented at the title workshop, held in Trani, Italy, September 1992, in celebration of the centenary of French physicist Louis de Broglies birth. The focus of attention is on recent results concerned with the EPR paradox, matter-interferometry, reality of

Ettore Majorana : unpublished research notes on theoretical physics

I.- Dirac Theory.- Quantum Electrodynamics.- II.- Atomic Physics.- Molecular Physics.- Statistical Mechanics.- III.- The Theory of Scattering.- Nuclear Physics.- IV.- Classical Physics.- Mathematical Physics.

Dispersion interactions between unexcited molecules possessing axial symmetry: arbitrary-order contributions

The ground-state dispersion energy of a pair of axially symmetric molecules is calculated, to arbitrary order in the inverse intermolecular separation, on the basis of Londons anisotropic oscillator model.

Quantum, space, and time--the quest continues : studies and essays in honour of Louis de Broglie, Paul Dirac, and Eugene Wigner

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Karl Popper at ninety: Highlights of a lifelong intellectual quest

On the occasion of his ninetieth birthday, Karl Poppers lifelong pursuit of answers in several areas of scientific and philosophical thinking is briefly traced, mainly with reference to excerpts from his own writings.

Dispersion interactions between unexcited molecules having axial symmetry: Contributions of order six and eight

A study is made of the dominant terms of an earlier model-based formula describing the dispersion energy of axially symmetric interacting molecules. The existence of mixed-pole eighth-order terms is noted.

Second‐Order Dispersion‐Energy Series for Axially Symmetric Molecules

With the aid of a model representing each molecule as a set of semi‐isotropic dipole oscillators, the London‐van der Waals interaction energy of a pair of unexcited axially symmetric molecules is calculated, in the second order of perturbation theory, as an infinite series in negative powers of the intermolecular separation.

Volumetto II: 23 April 1928

Let x and y be the following functions of r and o: