ISIS Neutron and Muon Source Data Journal

Measurement of spin-gravity coupling by quantum interference

Abstract: It is possible that there is a coupling between the spin and gravitation, for instance by an adaptation of the Hamiltonian with an additional termH=k/c (gvec.Svec) where gvec is the gravitational acceleration and Svec is the spin vector, c is the light speed and k is a coupling constant. We propose to perform further measurements of the quantum gravitational effect for OffSpec. We will investigate the spin gravity coupling and find a first estimate of the coupling constant k. Another possible outcome could be an upper limit of k in case of neutrons. Accurate measurements of the phase plot need to be performed in vertical-splitting geometry of the instrument for several inclination angles. The measurements with and without the gravitational component will give us the accurate absolute result for the separation of the eigenstates which is a measurement of the difference in potential.

Principal Investigator: Dr Victor Otto de Haan
Experimenter: Dr Jeroen Plomp
Local Contact: Dr Nina-Juliane Steinke
Experimenter: Dr Ad van Well
Experimenter: Mr Niels Geerits
Experimenter: Dr Steven Parnell
Experimenter: Professor Roger Pynn
Experimenter: Dr Stephan Sponar
Experimenter: Dr Robert Dalgliesh
Experimenter: Professor Michael Snow
Experimenter: Mr Kyle Steffen
Experimenter: Dr Tom Eykyn
Experimenter: Dr Antonia Denkova

DOI: 10.5286/ISIS.E.RB1900118

ISIS Experiment Number: RB1900118

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
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Data Citation

The recommended format for citing this dataset in a research publication is as:
[author], [date], [title], [publisher], [doi]

For Example:
Dr Victor Otto de Haan et al; (2019): Measurement of spin-gravity coupling by quantum interference, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1900118

Data is released under the CC-BY-4.0 license.