English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

In recent years there has been an enormous progress in matter waveinterferometry. The Colella- Overhauser-Werner (COW) type of neutroninterferometer and the Kasevich-Chu (K-C) atom interferometer, are theprototype of such devices and the issue of whether they are sensitive torelativistic effects has recently aroused much controversy. We examine thequestion of to what extent the gravitational red shift, and the related twinparadox effect can be seen in both of these atom and neutron interferometers.We point out an asymmetry between the two types of devices. Because of this,the non-vanishing, non-relativistic residue of both effects can be seen in theneutron interferometer, while in the K-C interferometer the effects cancel out,leaving no residue, although they could be present in other types of atominterferometers. Also, the necessary shifting of the laser frequency (chirping)in the atom interferometer effectively changes the laboratory into a free-fallsystem, which could be exploited for other experiments.

Relativistic Effects in Atom and Neutron Interferometry and the Differences Between Them