Results 41 to 50 of about 41,771 (184)

Bell Violation in Primordial Cosmology

Universe, 2017
In this paper, we have worked on the possibility of setting up an Bell’s inequality violating experiment in the context of primordial cosmology following the fundamental principles of quantum mechanics. To set up this proposal, we have introduced a model-
Sayantan Choudhury, Sudhakar Panda, Rajeev Singh   +2 more
doaj   +1 more source

QCD Axion and Quintessential Axion [PDF]

, 2004
The axion solution of the strong CP problem is reviewed together with the other strong CP solutions. We also point out the quintessential axion(quintaxion) whose potential can be extremely flat due to the tiny ratio of the hidden sector quark mass and the intermediate hidden sector scale.
openaire   +2 more sources

Resonantly Enhanced Axion-Photon Regeneration [PDF]

, 2007
We point out that photon regeneration-experiments that search for the axion, or axion-like particles, may be resonantly enhanced by employing matched Fabry-Perot optical cavities encompassing both the axion production and conversion magnetic field ...
A. A. Ansel’m, A. A. Ansel’m, D. B. Tanner, G. G. Raffelt, Karl van Bibber, P. Sikivie   +5 more
core   +2 more sources

An out-of-hours cell culture autopilot proof of concept based on a modular architecture using the SiLA2 open standard

SLAS Technology
There has been much talk and substantial progress in automated and flexible smart lab concepts in biopharma R&D. This is acknowledged to be important in enabling the acceleration of innovation and digitization of R&D operations.
Patrick Courtney, Raphael Lieberherr, William Speed, Ricardo Gaviria, Yordan Alipiev, Miguel van der Heijden, Oliver Peter   +6 more
doaj   +1 more source

Approaching the Quantum Limit in Axion Detection at IBS-CAPP and IBS-DMAG

Physical Sciences Forum
We present the development of two complementary amplifier architectures for axion haloscope experiments, based on two types of Josephson Parametric Amplifiers (JPAs).
Sergey V. Uchaikin, Boris I. Ivanov, Arjan F. van Loo, Yasunobu Nakamura, MinSu Ko, Jinmyeong Kim, Saebyeok Ahn, Seonjeong Oh, Yannis K. Semertzidis, SungWoo Youn   +9 more
doaj   +1 more source

Reheating-induced axion dark matter after low scale inflation

Journal of High Energy Physics, 2020
A kinetic mixing between the axion and the inflaton allows for a production of axion dark matter even if the inflationary Hubble scale is smaller than the zero-temperature axion mass.
Takeshi Kobayashi, Lorenzo Ubaldi
doaj   +1 more source

Axions - Motivation, limits and searches [PDF]

, 2006
The axion solution of the strong CP problem provides a number of possible windows to physics beyond the standard model, notably in the form of searches for solar axions and for galactic axion dark matter, but in a broader context also inspires searches ...
Raffelt, Georg G.
core   +2 more sources

Development of axion haloscopes for high-mass search at CAPP

Frontiers in Physics
The axion offers a well-motivated solution to two fundamental questions in modern physics: the strong CP problem and the dark matter mystery. Cavity haloscopes, exploiting resonant enhancement of photon signals, provide the most sensitive searches for ...
SungWoo Youn, Junu Jeong, Yannis K. Semertzidis, Yannis K. Semertzidis   +3 more
doaj   +1 more source

Diluting the inflationary axion fluctuation by a stronger QCD in the early Universe

Physics Letters B, 2015
We propose a new mechanism to suppress the axion isocurvature perturbation, while producing the right amount of axion dark matter, within the framework of supersymmetric axion models with the axion scale induced by supersymmetry breaking.
Kiwoon Choi, Eung Jin Chun, Sang Hui Im, Kwang Sik Jeong   +3 more
doaj   +1 more source

CAST constraints on the axion-electron coupling

, 2013
In non-hadronic axion models, which have a tree-level axion-electron interaction, the Sun produces a strong axion flux by bremsstrahlung, Compton scattering, and axio-recombination, the "BCA processes." Based on a new calculation of this flux, including ...
Barth, K., Belov, A., Beltran, B., Brauninger, H., Carmona, J. M., Collar, J. I., Dafni, T., Davenport, M., Di Lella, L., Eleftheriadis, C., Englhauser, J., Fanourakis, G., Fischer, H., Franz, J., Friedrich, P., Galan, J., Garcia, J. A., Geralis, T., Giomataris, I., Gninenko, S., Gomez, H., Hassinoff, M. D., Heinsius, F. H., Hoffmann, D. H. H., Irastorza, I. G., Jacoby, J., Jakovcic, K., Kang, D., Konigsmann, K., Kotthaus, R., Kousouris, K., Krcmar, M., Kuster, M., Lakic, B., Liolios, A., Ljubicic, A., Lutz, G., Luzon, G., Miller, D. W., Papaevangelou, T., Pivovaroff, M. J., Raffelt, G., Redondo, J., Ribas, E. Ferrer, Riege, H., Rodriguez, A., Ruz, J., Savvidis, I., Semertzidis, Y., Stewart, L., Van Bibber, K., Vieira, J. D., Villar, J. A., Vogel, J. K., Walckiers, L., Zioutas, K.   +55 more
core   +1 more source