C. Dewdney

Particle trajectories and interference in a time-dependent model of neutron single crystal interferometry

Abstract The de Broglie-Bohm interpretation of quantum mechanics is shown to provide an explanation of the observed spatial interference in neutron single crystal interferometers in terms of well-defined individual particle trajectories with continuously variable energy.

Testing wave-particle dualism with time-dependent neutron interferometry

Abstract A modified version of the time-dependent neutron spinor superposition allows a possible simultaneous detection of neutron paths and intensity self-interference. Previous theoretical doubts are removed and the Einstein-de Broglie version of the wave-particle dualism now seems to be supported by Rauchs experiment.

Elimination of negative probabilities within the causal stochastic interpretation of quantum mechanics

Abstract Negative probabilities resulting from the Klein-Gordon equation are eliminated from quantum theory within the stochastic interpretation of quantum theory (SIQM) for spin-zero particles. The assumption of real physical paths in E 4 implies that only particles (antiparticles) of positive energies move forward in time with positive probability densities.

Stochastic physical origin of the quantum operator algebra and phase space interpretation of the Hilbert space formalism: The relativistic spin zero case

Abstract Based on a recent association of quantum observable algebra with stochastic processes in the frame of the causal stochastic interpretation of quantum mechanics, a relativistic Hilbert space is defined for the Klein-Gordon case. It is demonstrated that unitary transformations in Hilbert space reflect canonical transformations in the associated phase space, manifesting thus an underlying symplectic structure.

Relativistic Wigner function as the expectation value of the PT operator

Abstract We define for the covariant relativistic Schrodinger equation a Hilbert space structure and generalize the Wigner-Moyal formalism to this case. We show how as a result the work of Royer may be generalized to express the relativistic Wigner function as the expectation value of the PT operator, and give an interpretation for the appearance of negative densities in terms of antiparticles.

Time-dependent neutron interferometry: Evidence against wave packet collapse?

If the energy-absorbing radio-frequency spin-flipping device used in perfect crystal neutron interferometry is an intermediate measuring device, then the experimental results contradict the associated wave packet collapse and support the real existence of the de Broglie pilot waves in both arms while the neutron travels in only one.

Cosmology and the causal interpretation of quantum mechanics

Abstract We answer the objections raised recently by Tipler to the trajectory interpretation of quantum mechanics by analyzing in detail the scattering of a particle from a semi-transparent surface. We conclude that the notion of the “wavefunction of the universe” poses no particular problems for this interpretation.

The anomalous photoelectric effect: Quantum potential theory versus effective photon hypothesis

Abstract The conflicting models of the effective photon theory and the quantum potential associated with the Einstein-de Broglie theory of light are compared with various experimental results obtained by Pannarella. New experiments are proposed which could discriminate between the two theories.

Einstein-Podolsky-Rosen constraints on quantum action at a distance: the Sutherland paradox

Assuming that future experiments confirm Aspects discovery of nonlocal interactions between quantum pairs of correlated particles, we analyze the constraints imposed by the EPR reasoning on the said interactions. It is then shown that the nonlocal relativistic quantum potential approach plainly satisfies the Einstein causality criteria as well as the energy-momentum conservation in individual microprocesses. Furthermore, this approach bypasses a new causal paradox for timelike separated EPR measurements deduced by Sutherland in the frame of an approach by means of space-time zigzags with advanced potentials. It is finally demonstrated that this inherent quantum causal direct interaction establishes permanent EPR correlations which are always restricted to spacelike separations and are instantaneous only in the center-of-mass rest frame of the two-particle system.

Time-dependent neutron interferometry: Evidence in favour of de Broglie waves

SummaryTime-dependent spinor superposition in neutron interferometry by means of radio frequency spin flippers enables a possible simultaneous path and interference detection and provides evidence for the real physical existence of de Broglie « pilot » waves.