A quantum Newton's cradle

Article Abstract:

A study of the preparation of out-of-equilibrium arrays of trapped one-dimensional (1D) Bose gases, each containing from 40 to 250 Rb atoms, which do not noticeably equilibrate even after thousands of collisions is presented. A homogeneous 1D Bose gas which point-like collisional interactions is integrable and the absence of damping in 1D Bose gases may lead to potential applications in force sensing and atom interferometry.

Observations, Bose-Einstein condensation, Collisions (Nuclear physics), Particle collisions

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Warm fusion

Article Abstract:

A demonstration of an intriguingly simple neutron generator that produces neutrons possessing energy of 2.5 mega-electronvolts (MeV) from reactions involving the fusion of two nuclei of deuterium is presented. Neutrons can penetrate significant quantities of matter, and interact primarily with the nucleus rather than the electronic structure of an atom.

Measuring & controlling devices, not elsewhere classified, Other Measuring and Controlling Device Manufacturing, Neutron Generators, Nuclear fusion, Neutron sources

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Violation of a Bell-like inequality in single-neutron interferometry

Article Abstract:

The correlations between two degrees of freedom of single neutrons is measured. Thus the need for a source of entangled neutron pairs, which would present a considerable technical challenge is removed.

Bell's theorem

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