Journal article

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
Department
Physique
Language
  • English
Classification
Physics
License
License undefined
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Persistent URL
https://folia.unifr.ch/unifr/documents/302081
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