ISIS Neutron and Muon Source Data Journal

This is a page describing data taken during an experiment at the ISIS Neutron and Muon Source. Information about the ISIS Neutron and Muon Source can be found at

Quantum Entanglement of Neutron Spin, Path and Energy

Abstract: What does a quantum particle do when you are not looking at it? For a classical moving object, like a golf ball, we know its trajectory even when we are not looking at it. This is not the case with quantum particles, such as neutrons, whose behavior is described by quantum mechanics (QM) in terms only of probable outcomes of a measurement. Einstein argued that QM was unlikely to be a full theory because it did not comply with what he regarded as common sense (local realism). It leads to strange phenomena like entanglement of quantum states that are currently being researched as the basis for future quantum computing. Our experiment aims to confirm entanglement for neutrons. If successful, we expect to open up an important new method of probing entangled electron states in advanced materials that are expected to underpin new technologies in the computing and energy sectors.

Public release date: 21 February 2022

Principal Investigator: Dr Roger Pynn
Experimenter: Mr Niels Geerits
Experimenter: Dr Fankang Li
Experimenter: Dr Steve Kuhn
Local Contact: Dr Robert Dalgliesh
Experimenter: Dr Victor de Haan
Experimenter: Dr Steven Parnell
Experimenter: Dr Jeroen Plomp
Experimenter: Mr Jiazhou Shen
Experimenter: Dr Ad van Well

DOI: 10.5286/ISIS.E.100757753

Parent DOI: 10.5286/ISIS.E.RB1820192

ISIS Experiment Number: RB1820192

Part Number: 1

Date of Experiment: 13 February 2019

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
Select the data format above to find out more about it.

Data Citation

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

For Example:
Dr Roger Pynn et al; (2019): Quantum Entanglement of Neutron Spin, Path and Energy, STFC ISIS Neutron and Muon Source,


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