Results 71 to 80 of about 1,236 (164)

Matter-Wave Decoherence due to a Gas Environment in an Atom Interferometer

, 2005
Decoherence due to scattering from background gas particles is observed for the first time in a Mach-Zehnder atom interferometer, and compared with decoherence due to scattering photons.
Alexander D. Cronin, D. Giulini, Hermann Uys, J. Sakurai, John D. Perreault, R. Feynman, W. H. Zurek   +6 more
core   +1 more source

Commitment to “Forbidden Questions” in Quantum Phenomena Requires a Philosophical Stand [PDF]

, 2013
The theory of quantum mechanics, as formulated by the Copenhagen school, has been controversial since its inception. Heisenberg’s uncertainty principle asserts that certain aspects of reality are not simultaneously defined, forbidding certain questions.
Ellias, James
core  

Feasibility of a gravity measurement on antimatter using a Talbot-Lau interferometer

, 2018
The past two decades have witnessed an increasing focus on cold antimatter physics, with the development of the Antiproton Decelerator at CERN as a supply of low-energy antiprotons. Among the open questions concerning antimatter, the result of a gravity measurement on anti-atoms as a direct test of the weak equivalence principle has attracted the ...
openaire   +2 more sources

Theory of oblique and grazing incidence Talbot‑Lau interferometers and demonstration in a compact source x‑ray reflective interferometer

Optics Express, 2011
With the advent of Talbot-Lau interferometers for x-ray phase-contrast imaging, oblique and grazing incidence configurations are now used in the pursuit of sub-micron grating periods and high sensitivity. Here we address the question whether interferometers having oblique incident beams behave in the same way as the well-understood normal incidence ...
Wen, Han, Kemble, Camille K, Bennett, Eric E.   +2 more
openaire   +2 more sources

Multi-directional neutron dark-field imaging with single absorption grating. [PDF]

Sci Rep, 2023
Busi M, Shen J, Bacak M, Zdora MC, Čapek J, Valsecchi J, Strobl M.   +6 more
europepmc   +1 more source

Requirements for probing chiral Casimir-Polder forces in a molecular Talbot-Lau interferometer

Physical Review Research
We theoretically investigate the influence of chiral Casimir-Polder (CP) forces in Talbot-Lau interferometry, based on three nanomechanical gratings. We study scenarios where the second grating is either directly written into a chiral material or where the nanomask is coated with chiral substances.
Suzuki, Fumika, Shah, S. A., Dalvit, Diego A. R., Arndt, Markus   +3 more
openaire   +4 more sources

Implementation of a Talbot-Lau interferometer in a clinical-like c-arm setup: A feasibility study. [PDF]

Sci Rep, 2018
Horn F, Leghissa M, Kaeppler S, Pelzer G, Rieger J, Seifert M, Wandner J, Weber T, Michel T, Riess C, Anton G.   +10 more
europepmc   +1 more source

Phase vortex lattices in neutron interferometry. [PDF]

Commun Phys, 2023
Geerits N, Lemmel H, Berger AS, Sponar S.   +3 more
europepmc   +1 more source

Optimization of contrast and dose in x-ray phase-contrast tomography with a Talbot-Lau interferometer

Biomedical Physics & Engineering Express
Abstract X-ray phase-contrast imaging has become a valuable tool for biomedical research due to its improved contrast abilities over regular attenuation-based imaging. The recently emerged Talbot-Lau interferometer can provide quantitative attenuation, phase-contrast and dark-field image data, even with low-brilliance x-ray tube sources.
Henrik Mäkinen, Heikki Suhonen, Teemu Siiskonen, Christian David, Simo Huotari   +4 more
openaire   +3 more sources

Dark-field computed tomography reaches the human scale. [PDF]

Proc Natl Acad Sci U S A, 2022
Viermetz M, Gustschin N, Schmid C, Haeusele J, von Teuffenbach M, Meyer P, Bergner F, Lasser T, Proksa R, Koehler T, Pfeiffer F.   +10 more
europepmc   +1 more source