Neutron-state entanglement with overlapping paths

Kuhn, Steve; McKay, S.; Shen, Jianzhao; Geerits, Niels; Dalgliesh, Robert M.; Dees, Eric; Irfan, Abu Ashik; Li, Fankang; Lu, Shufan; Vangelista, Vince; Baxter, David V.; Ortíz, Gerardo; Parnell, Steven R.; Snow, W. M.; Pynn, R.

doi:10.1103/physrevresearch.3.023227

Cited by 15 publications

(4 citation statements)

References 23 publications

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“…A MIEZE setup at ORNL was recently commissioned. Seminal work on entangled neutron beams has been carried out with this set -up [67,43]. However this setup does not have a dedicated beamline [43,50,67].…”

Section: State Of the Artmentioning

confidence: 99%

Extending MIEZE spectroscopy towards thermal wavelengths

Jochum¹,

Keller²,

Pfleiderer³

2022

Preprint

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We propose a Modulation of intensity with zero effort (MIEZE) setup for high -resolution neutron spectroscopy at momentum transfers up to 3 Å−1 ,energy transfers up to 20 meV, and an energy resolution in the µeVrange using both thermal and cold neutrons. MIEZE has two prominent advantages compared to classical neutron spin -echo. The first one is the possibility to investigate spin -depolarizing samples or samples in strong magnetic fields without loss of signal amplitude and intensity. This allows for the study of spin fluctuations in ferromagnets, and facilitates the study of samples with strong spin -incoherent scattering. The second advantage is that multi -analyzer setups can be implemented with comparatively small effort. The use of thermal neutrons increases the range of validity of the spin -echo approximation towards shorter spin -echo times. In turn, the thermal MIEZE option for greater ranges (TIGER) closes the gap between classical neutron spin -echo spectroscopy and conventional highresolution neutron spectroscopy techniques such as triple -axis, time -offlight, and back -scattering. To illustrate the feasibility of TIGER we present the details of an implementation at the beamline RESEDA at FRM II by means of an additional velocity selector, polarizer and analyzer.

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Section: State Of the Artmentioning

confidence: 99%

Extending MIEZE spectroscopy towards thermal wavelengths

Jochum¹,

Keller²,

Pfleiderer³

2022

Preprint

View full text Add to dashboard Cite

show abstract

“…A MIEZE setup at ORNL was recently commissioned. Seminal work on entangled neutron beams has been carried out with this setup (Shen et al, 2020;Kuhn et al, 2021b); however this setup does not have a dedicated beamline (Kuhn et al, 2021b;Lu et al, 2020;Shen et al, 2020;Zhao et al, 2015;Dadisman et al, 2020).…”

Section: State Of the Artmentioning

confidence: 99%

Extending MIEZE spectroscopy towards thermal wavelengths

Jochum¹,

Keller²,

Pfleiderer³

2022

J Appl Cryst

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A modulation of intensity with zero effort (MIEZE) setup is proposed for high-resolution neutron spectroscopy at momentum transfers up to 3 Å−1, energy transfers up to 20 meV and an energy resolution in the microelectronvolt range using both thermal and cold neutrons. MIEZE has two prominent advantages compared with classical neutron spin echo. The first is the possibility to investigate spin-depolarizing samples or samples in strong magnetic fields without loss of signal amplitude and intensity. This allows for the study of spin fluctuations in ferromagnets, and facilitates the study of samples with strong spin-incoherent scattering. The second advantage is that multi-analyzer setups can be implemented with comparatively little effort. The use of thermal neutrons increases the range of validity of the spin-echo approximation towards shorter spin-echo times. In turn, the thermal MIEZE option for greater ranges (TIGER) closes the gap between classical neutron spin-echo spectroscopy and conventional high-resolution neutron spectroscopy techniques such as triple-axis, time-of-flight and back-scattering. To illustrate the feasibility of TIGER, this paper presents the details of its implementation at the RESEDA beamline at FRM II by means of an additional velocity selector, polarizer and analyzer.

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“…(3) Neutron Quantum Optics and Entanglement: The recent demonstration at ISIS and ORNL of two-and three-variable single-neutron quantum entanglement in the spin, path, and energy qubits of polarized meV neutron beams [84,85] can be extended to the eV neutron energy range using neutron Wollaston prisms [86]. This development can open the new field of entangled neutron-scattering and enable neutron-nucleus resonance profile measurements of unprecedented precision.…”

Section: Future Opportunities Using Epithermal Neutronsmentioning

confidence: 99%

“…Birefringent neutron optical devices recently developed for neutron spectroscopy can convert the NOPTREX experimental apparatus into a spin-path interferometer, similar to the Ramsey separated oscillatory field configuration used in electric dipole moment searches but operating with paths separated in space rather than in time. These devices were recently used to entangle the neutron spin and position or the neutron spin, position, and energy variables into Bell and Greenberger-Horne-Zeilinger (GHZ) states, whose degree of quantum entanglement was quantified by measuring the appropriate Bell and GHZ entanglement witnesses [84,85,137]. The correlation observables in this experiment took the largest possible value allowed by quantum mechanics despite the passage of the polarized neutrons through macroscopic amounts of matter.…”

Section: Time-reversal Violation In Neutron Optics and A Search For A...mentioning

confidence: 99%

Searches for Exotic Interactions Using Neutrons

2021

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Slow neutrons possess several advantageous properties which make them useful probes for a variety of exotic interactions, including some that can form at least some components of the dark matter of interest for this issue of Symmetry. We discuss the relevant neutron properties, describe some of the recent work that has been done along these lines using neutron experiments mainly with cold and ultra-cold neutrons, and outline some interesting and exciting opportunities which can be pursued using resonant epithermal neutron interactions in heavy nuclei.

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Neutron-state entanglement with overlapping paths

Cited by 15 publications

References 23 publications

Extending MIEZE spectroscopy towards thermal wavelengths

Extending MIEZE spectroscopy towards thermal wavelengths

Extending MIEZE spectroscopy towards thermal wavelengths

Searches for Exotic Interactions Using Neutrons

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