The physicist Chris Dewdney's work has been integral to the development of the Causal Interpretation. Dr. Dewdney pioneered early numerical computations that stimulated renewed interest in the Causal Interpretation. His work was subsequently reproduced in Bohm and Hiley's book The Undivided Universe.

Dr. Dewdney's work includes papers on understanding of quantum interference, quantum tunnelling, measurement, EPR, nonlocal phenomena, quantum fields, field matter interactions, which way trajectories, and "surreal trajectories". These papers helped allow for the Causal Interpretation to develop to the point it has presently.

Dr. Dewdney is mentioned in Bohm's biography, the book the Quantum Dissidents, and in the book Mind, Matter, and the Implicate Order, among other places. He spent time at Birkbeck but is presently located at the University of Portsmouth where there is a page about him.

**Publications**

[1] C. Philippidis, C. Dewdney, and B. J. Hiley. Quantum interference and the quantum potential. Il Nuovo Cimento B Series 11, 52(1):15–28, 1979.

[2] C. Dewdney and B. Hiley. A quantum potential description of one-dimensional time-dependent scattering from square barriers and square wells. Foundations of Physics, 12(1):27–48, 1982.

[3] D. Bohm, B. Hiley, and C. Dewdney. A quantum potential approach to the Wheeler delayed- choice experiment. Nature, 315:294–297, 1985.

[4] C. Dewdney. Particle trajectories and interference in a time-dependent model of neutron single crystal interferometry. Physics Letters A, 109(8):377–384, 1985.

[5] C. Dewdney, P. Holland, A. Kyprianidis, and J. Vigier. Causal action at a distance in a relativistic system of two bound charged spinless particles: Hydrogenlike models. Physical Review D, 31(10):2533, 1985.

[6] N. C. Petroni, C. Dewdney, P. Holland, A. Kyprianidis, and J. Vigier. Causal space-time paths of individual distinguishable particle motions in n-body quantum systems: Elimination of negative probabilities. Lettere Al Nuovo Cimento Series 2, 42(6):285–294, 1985.

[7] C. Dewdney. Continuously variable spin vectors and spin measurements in the causal interpre- tation of quantum mechanics. Annals of the New York Academy of Sciences, 480(1):571–573, 1986.

[8] C. Dewdney, P. Holland, A. Kyprianidis, Z. Mari´c, and J. Vigier. Stochastic physical origin of the quantum operator algebra and phase space interpretation of the hilbert space formalism: The relativistic spin zero case. Physics Letters A, 113(7):359–364, 1986.

[9] C. Dewdney, P. Holland, A. Kyprianidis, and J. Vigier. Cosmology and the causal interpretation of quantum mechanics. Physics Letters A, 114(7):365–370, 1986.

[10] C. Dewdney, P. Holland, A. Kyprianidis, and J. Vigier. Relativistic Wigner function as the expectation value of the PT operator. Physics Letters A, 114(8):440–444, 1986.

[11] C. Dewdney, P. R. Holland, and A. Kyprianidis. What happens in a spin measurement? Physics Letters A, 119(6):259–267, 1986.

[12] C. Dewdney, P. Holland, and A. Kyprianidis. A causal account of non-local einstein-podolsky- rosen spin correlations. Journal of Physics A: Mathematical and General, 20(14):4717, 1987.

[13] C. Dewdney, P. Holland, and A. Kyprianidis. A quantum potential approach to spin superpo- sition in neutron interferometry. Physics Letters A, 121(3):105–110, 1987.

[14] C. Dewdney. Nonlocally correlated trajectories in two-particle quantum mechanics. Founda- tions of physics, 18(9):867–886, 1988.

[15] C. Dewdney. The quantum potential approach to neutron interferometry experiments. Physica B+ C, 151(1):160–170, 1988.

[16] C. Dewdney, P. Holland, A. Kyprianidis, and J. P. Vigier. Spin and non-locality in quantum mechanics. Nature, 336:536–544, 1988.

[17] M. Lam and C. Dewdney. Locality and nonlocality in correlated two-particle interferometry. Physics Letters A, 150(3):127–135, 1990.

[18] C. Dewdney. Constraints on quantum hidden-variables and the Bohm theory. Journal of Physics A: Mathematical and General, 25(12):3615, 1992.

[19] C. Dewdney, L. Hardy, and E. J. Squires. How late measurements of quantum trajectories can fool a detector. Physics Letters A, 184(1):6–11, 1993.

[20] C. Dewdney, G. Horton, M. Lam, Z. Malik, and M. Schmidt. Wave-particle dualism and the interpretation of quantum mechanics. Foundations of physics, 22(10):1217–1265, 1992.

[21] C. Dewdney and Z. Malik. Angular-momentum measurement and nonlocality in Bohm’s in- terpretation of quantum theory. Physical Review A, 48(5):3513, 1993.

[22] M. Lam and C. Dewdney. The Bohm approach to cavity quantum scalar field dynamics. part I: The free field. Foundations of physics, 24(1):3–27, 1994.

[23] M. Lam and C. Dewdney. The Bohm approach to cavity quantum scalar field dynamics. part II: The interaction of the field with matter. Foundations of physics, 24(1):29–60, 1994.

[24] H. Brown, C. Dewdney, and G. Horton. Bohm particles and their detection in the light of neutron interferometry. Foundations of Physics, 25(2):329–347, 1995.

[25] Z. Malik and C. Dewdney. Quantum mechanics, chaos, and the Bohm theory. arXiv preprint quant-ph/9506026, 1995.

[26] C. Dewdney and Z. Malik. Measurement, decoherence and chaos in quantum pinball. Physics Letters A, 220(4):183–188, 1996.

[27] G. Horton, C. Dewdney and A. Nesteruk. Time-like flows of energy momentum and particle trajectories for the Klein-Gordon equation. Journal of Physics A: Mathematical and General, 33(41):7337, 2000.

[28] G. Horton and C. Dewdney. A non-local, lorentz-invariant, hidden-variable interpretation of relativistic quantum mechanics based on particle trajectories. Journal of Physics A: Mathematical and General, 34(46):9871, 2001.

[29] C. Dewdney and G. Horton. Relativistically invariant extension of the de Broglie–Bohm theory of quantum mechanics. Journal of Physics A: Mathematical and General, 35(47):10117, 2002.

[30] G. Horton, C. Dewdney, and U. Ne’eman. de Broglie’s pilot-wave theory for the Klein–Gordon equation and its space-time pathologies. Foundations of Physics, 32(3):463–476, 2002.

[31] C. Dewdney and G. Horton Reply to ’Comment on ”Timelike flows of energy momentum and particle trajectories for the Klein Gordon equation”’ Journal of Physics A: Mathematical and General. 35, 37, p. 7963-7964 2002.

[32] G. Horton and C. Dewdney. A relativistically covariant version of Bohm’s quantum field theory for the scalar field. Journal of Physics A: Mathematical and General, 37(49):11935, 2004.

[33] G. Horton and C. Dewdney. A relativistic hidden-variable interpretation for the massive vector field based on energy-momentum flows. Foundations of Physics, 40(6):658–678, 2010.