189 citations · 473 across the 11 of their papers we have counts for
11 papers
A highly stable atomic vector magnetometer based on free spin precession
S. Afach, G. Ban, G. Bison +31
We present a magnetometer based on optically pumped Cs atoms that measures the magnitude and direction of a 1 T magnetic field. Multiple circularly polarized laser beams were us…
Constraining interactions mediated by axion-like particles with ultracold neutrons
S. Afach, G. Ban, G. Bison +35
We report a new limit on a possible short range spin-dependent interaction from the precise measurement of the ratio of Larmor precession frequencies of stored ultracold neutrons a…
Magneto-optical spectroscopy with polarization-modulated light
E. Breschi, Z. D. Gruijc, P. Knowles +1
We present a combined theoretical and experimental study of magnetic resonance transitions induced by polarization-modulated light in cesium vapor exposed to a transverse magnetic…
An Improved Search for the Neutron Electric Dipole Moment
M. Burghoff, A. Schnabel, G. Ban +34
A permanent electric dipole moment of fundamental spin-1/2 particles violates both parity (P) and time re- versal (T) symmetry, and hence, also charge-parity (CP) symmetry since th…
Testing isotropy of the universe using the Ramsey resonance technique on ultracold neutron spins
I. Altarev, G. Ban, G. Bison +38
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 U…
A room temperature 19-channel magnetic field mapping device for cardiac signals
G. Bison, N. Castagna, A. Hofer +5
We present a multichannel cardiac magnetic field imaging system built in Fribourg from optical double-resonance Cs vapor magnetometers. It consists of 25 individual sensors designe…