Testing isotropy of the universe using the Ramsey resonance technique on ultracold neutron spins
- Altarev, I. Technische Universität München, Garching, Germany
- Ban, G. LPC Caen, ENSICAEN, Université de Caen, France
- Bison, Georg Department of Neurology, Friedrich-Schiller-University, Jena, Germany
- Bodek, K. Marian Smoluchowski Institute of Physics, Jagiellonian University, Cracow, Poland
- Daum, M. Excellence Cluster ‘Universe’, Technische Universität München, Garching, Germany - Paul Scherrer Institut (PSI), Villigen PSI, Switzerland
- Fertl, M. Paul Scherrer Institut (PSI), Villigen PSI, Switzerland
- Fierlinger, P. Excellence Cluster ‘Universe’, Technische Universität München, Garching, Germany
- Franke, B. Excellence Cluster ‘Universe’, Technische Universität München, Garching, Germany - Paul Scherrer Institut (PSI), Villigen PSI, Switzerland
- Gutsmiedl, E. Technische Universität München, Garching, Germany
- Heil, W. Institut für Physik, Johannes-Gutenberg-Universität, Mainz, Germany
- Henneck, R. Paul Scherrer Institut (PSI), Villigen PSI, Switzerland
- Horras, M. Excellence Cluster ‘Universe’, Technische Universität München, Garching, Germany - Paul Scherrer Institut (PSI), Villigen PSI, Switzerland
- Khomutov, N. JINR, Dubna, Moscow region, Russia
- Kirch, K. Paul Scherrer Institut (PSI), Villigen PSI, Switzerland - ETH Zürich, Switzerland
- Kistryn, S. Marian Smoluchowski Institute of Physics, Jagiellonian University, Cracow, Poland
- Kraft, A. Institut für Physik, Johannes-Gutenberg-Universität, Mainz, Germany
- Knecht, A. Paul Scherrer Institut (PSI), Villigen PSI, Switzerland
- Knowles, Paul E. Physics Department, University of Fribourg, Switzerland
- Kozela, A. Henryk Niedwodniczański Institute for Nuclear Physics, Cracow, Poland
- Lauer, T. Institut für Kernchemie, Johannes-Gutenberg-Universität, Mainz, Germany
- Lauss, B. Paul Scherrer Institut (PSI), Villigen PSI, Switzerland
- Lefort, T. LPC Caen, ENSICAEN, Université de Caen, France
- Lemière, Y. LPC Caen, ENSICAEN, Université de Caen, France
- Mtchedlishvili, A. Paul Scherrer Institut (PSI), Villigen PSI, Switzerland
- Naviliat-Cuncic, O. LPC Caen, ENSICAEN, Université de Caen, France
- Pazgalev, Anatoly S. Physics Department, University of Fribourg, Switzerland
- Petzoldt, G. Excellence Cluster ‘Universe’, Technische Universität München, Garching, Germany
- Piegsa, F. M. ETH Zürich, Switzerland
- Pierre, E. LPC Caen, ENSICAEN, Université de Caen, France - Paul Scherrer Institut (PSI), Villigen PSI, Switzerland
- Pignol, G. Excellence Cluster ‘Universe’, Technische Universität München, Garching, Germany
- Quéméner, G. LPC Caen, ENSICAEN, Université de Caen, France
- Rebetez, M. Physics Department, University of Fribourg, Switzerland
- Rebreyend, D. LPSC, Université Joseph Fourier Grenoble, France
- Roccia, S. Instituut voor Kern- en Stralingsfysica, Katholieke Universiteit Leuven, Belgium
- Schmidt-Wellenburg, P. Paul Scherrer Institut (PSI), Villigen PSI, Switzerland
- Severijns, N. Instituut voor Kern- en Stralingsfysica, Katholieke Universiteit Leuven, Belgium
- Sobolev, Yu. Institut für Physik, Johannes-Gutenberg-Universität, Mainz, Germany
- Weis, Antoine Physics Department, University of Fribourg, Switzerland
- Zejma, J. Marian Smoluchowski Institute of Physics, Jagiellonian University, Cracow, Poland
- Zenner, J. Institut für Kernchemie, Johannes-Gutenberg-Universität, Mainz, Germany
- Zsigmond, G. Paul Scherrer Institut (PSI), Villigen PSI, Switzerland
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06.10.2010
Published in:
- Physica B: Condensed Matter. - 2011, vol. 406, no. 12, p. 2365-2369
English
Physics at the Planck scale could be revealed by looking for tiny violations of fundamental symmetries in low energy experiments. In 2008, a sensitive test of the isotropy of the universe has been performed with stored ultracold neutrons (UCN), this is the first clock-comparison experiment performed with free neutrons. During several days we monitored the Larmor frequency of neutron spins in a weak magnetic field using the Ramsey resonance technique. A nonzero cosmic axial field, violating rotational symmetry, would induce a daily variation of the precession frequency. Our null result constitutes one of the most stringent tests of Lorentz invariance to date.
- Faculty
- Faculté des sciences et de médecine
- Department
- Département de Physique
- Language
-
- English
- Classification
- Physics
- License
- License undefined
- Identifiers
-
- RERO DOC 27302
- DOI 10.1016/j.physb.2010.09.044
- Persistent URL
- https://folia.unifr.ch/unifr/documents/302081
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