G. Gwinner (Professor)
G. Gwinner photo

Room: 209 Allen
204 474 9856
gwinner(at)physics.umanitoba.ca
Ph.D. (SUNY Stony Brook)
Fundamental Symmetries in Atoms
Webpage

About

PhD SUNY Stony Brook, 1995

Postdoc University of California at Berkeley and Lawrence Berkeley National Laboratory, 1995-1997 Research scientist, Max-Planck Institute for Nuclear Physics, Heidelberg, Germany, 1997-2003 Faculty, University of Manitoba (Assist. Prof. 2003-06, Assoc. Prof. 2006-2013, Prof. 2013 - present)

Research interests: Fundamental symmetries measurements at low energies, in the border area between atomic, nuclear and particle physics. Current projects: Laser trapping of radioactive isotopes at TRIUMF, in particular francium for atomic parity non-conservation studies; the TITAN mass measurement facility; tests of relativistic time dilation. Previous work: electron-ion recombination; precision lifetime measurement of the negative positronium ions (e+e-e-).

Chair of the Graduate Studies Committee in the Department of Physics & Astronomy Vice-President of the Board, Canadian Institute of Nuclear Physics Head of working group “Fundamental Symmetries” at the Canadian Institute of Nuclear Physics

 

Representative Publications

[1] R. Collister, G. Gwinner, M. Tandecki, J. A. Behr, M. R. Pearson, J. Zhang, L. A. Orozco, S. Aubin, and E. Gomez. Isotope shifts in francium isotopes 206−213Fr and 221Fr. Phys. Rev. A, 90:052502, 11 2014.

[2] Benjamin Botermann, Dennis Bing, Christopher Geppert, Gerald Gwinner, Theodor W. Hänsch, Gerhard Huber, Sergei Karpuk, Andreas Krieger, Thomas Kühl, Wilfried Nörtershäuser, Christian Novotny, Sascha Reinhardt, Rodolfo Sanchez, Dirk Schwalm, Thomas Stöhlker, Andreas Wolf, and Guido Saathoff. Test of Time Dilation Using Stored Li+ Ions as Clocks at Relativistic Speed. Phys. Rev. Lett., 113:120405, 09 2014.

[3] G. Li, R. Segel, N. D. Scielzo, P. F. Bertone, F. Buchinger, S. Caldwell, A. Chaudhuri, J. A. Clark, J. E. Crawford, C. M. Deibel, J. Fallis, S. Gulick, G. Gwinner, D. Lascar, A. F. Levand, M. Pedretti, G. Savard, K. S. Sharma, M. G. Sternberg, T. Sun, J. Van Schelt, R. M. Yee, and B. J. Zabransky. Tensor Interaction Limit Derived From the α-β-ν-Correlation in Trapped Li8 Ions. Phys. Rev. Lett., 110:092502, 03 2013.

[4] V. V. Simon, T. Brunner, U. Chowdhury, B. Eberhardt, S. Ettenauer, A. T. Gallant, E. Mane, M. C. Simon, P. Delheij, M. R. Pearson, G. Audi, G. Gwinner, D. Lunney, H. Schatz, and J. Dilling. Penning- trap mass spectrometry of highly charged, neutron-rich Rb and Sr isotopes in the vicinity of A ≈ 100. Phys. Rev. C, 85:064308, 06 2012.

[5] S. Ettenauer, M. C. Simon, A. T. Gallant, T. Brunner, U. Chowdhury, V. V. Simon, M. Brodeur, A. Chaudhuri, E. Man ́e, C. Andreoiu, G. Audi, J. R. C. Lopez-Urrutia, P. Delheij, G. Gwinner, A. Lapierre, D. Lunney, M. R. Pearson, R. Ringle, J. Ullrich, and J. Dilling. First use of high charge states for mass measurements of short-lived nuclides in a Penning trap. Physical Review Letters, 107(26):A262501, 12 2011.

[6] J A Behr and G Gwinner. Standard model tests with trapped radioactive atoms. Journal of Physics G, 36(3):033101 (38pp), 03 2009.

[7] S. Reinhardt, G. Saathoff, H. Buhr, L. A. Carlson, A. Wolf, D. Schwalm, S. Karpuk, C. Novotny, G. Huber, M. Zimmermann, R. Holzwarth, T. Udem, T. W. Hänsch, and G. Gwinner. Test of relativistic time dilation with fast optical atomic clocks at different velocities. Nature Physics, 3:861–864, 12 2007.

[8] Frank Fleischer, Kai Degreif, Gerald Gwinner, Michael Lestinsky, Vitaly Liechtenstein, Florian Plenge, and Dirk Schwalm. Measurement of the decay rate of the negative ion of positronium (Ps−). Physical Review Letters, 96(6):063401, 02 2006.

[9] Maria Hörndl, Shuhei Yoshida, Andreas Wolf, Gerald Gwinner, and Joachim Burgdörfer. Enhancement of low energy electron-ion recombination in a magnetic field: Influence of transient field effects. Physical Review Letters, 95(24):243201, 12 2005.

[10] G. Gwinner. Experimental tests of time dilation in special relativity. Modern Physics Letters A, 20:791– 805, 04 2005.

[11] G. Saathoff, S. Karpuk, U. Eisenbarth, G. Huber, S. Krohn, R. M. Horta, S. Reinhardt, D. Schwalm, A. Wolf, and G. Gwinner. Improved test of time dilation in special relativity. Physical Review Letters, 91(19):190403, 11 2003.

[12] M. Schnell, G. Gwinner, N. R. Badnell, M. E. Bannister, S. Bohm, J. Colgan, S. Kieslich, S. D. Loch, D. Mitnik, A. Mu ̈ller, M. S. Pindzola, S. Schippers, D. Schwalm, W. Shi, A. Wolf, and S.-G. Zhou. Observation of trielectronic recombination in Be-like Cl ions. Phys. Rev. Lett., 91(4):043001, 07 2003.

[13] S. Schippers, A. Mu ̈ller, G. Gwinner, J. Linkemann, A. A. Saghiri, and A. Wolf. Storage ring measure- ment of the C IV recombination rate coefficient. Astrophys. J., 555:1027–1037, 07 2001.

[14] G. Gwinner, A. Hoffknecht, T. Bartsch, M. Beutelspacher, N. Eklöw, P. Glans, M. Grieser, S. Krohn, E. Lindroth, A. Müller, A. A. Saghiri, S. Schippers, U. Schramm, D. Schwalm, M. Tokman, G. Wissler, and A. Wolf. Influence of magnetic fields on electron-ion recombination at very low energies. Physical Review Letters, 84:4822–4825, 05 2000.

[15] C. J. Bowers, D. Budker, S. J. Freedman, G. Gwinner, J. E. Stalnaker, and D. Demille. Experimental investigation of the 6s2 1S0 − 5d6s3D1,2 forbidden transitions in atomic ytterbium. Phys. Rev. A, 59:3513–3526, 05 1999.

[16] M. A. Rowe, S. J. Freedman, B. K. Fujikawa, G. Gwinner, S.-Q. Shang, and P. A. Vetter. Ground-state hyperfine measurement in laser-trapped radioactive 21Na. Phys. Rev. A, 59:1869–1873, 03 1999.

[17] J. E. Simsarian, A. Ghosh, G. Gwinner, L. A. Orozco, G. D. Sprouse, and P. A. Voytas. Magneto-Optic Trapping of 210Fr. Physical Review Letters, 76:3522–3525, 05 1996.

[18] G. Gwinner, J. A. Behr, S. B. Cahn, A. Ghosh, L. A. Orozco, G. D. Sprouse, and F. Xu. Magneto-optic trapping of radioactive 79Rb. Physical Review Letters, 72:3795–3798, 06 1994.