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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
Persistent URL
https://folia.unifr.ch/unifr/documents/302081
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