Cover Image

Searches for Lorentz violation in 3He/129Xe clock comparison experiments

We discuss the design and performance of a very sensitive low-field magnetometer based on the detection of free spin precession of gaseous, nuclear polarized 3He or 129Xe samples with a SQUID as magnetic flux detector. Characteristic spin precession times $T_2^\ast$of up to 115 h were measured in lo...

Full description

Saved in:
Bibliographic Details
Main Authors: Allmendinger, Fabian (Author) , Burghoff, M. (Author) , Heil, W. (Author) , Karpuk, S. (Author) , Kilian, W. (Author) , Knappe-Grüneberg, S. (Author) , Müller, W. (Author) , Schmidt, Ulrich (Author) , Schnabel, A. (Author) , Seifert, F. (Author) , Sobolev, Yu (Author) , Trahms, L. (Author) , Tullney, K. (Author)
Format: Article (Journal)
Language:English
Published: 21 February 2013
In: Hyperfine interactions
Year: 2013, Volume: 215, Pages: 15-23
ISSN:1572-9540
DOI:10.1007/s10751-013-0785-x
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1007/s10751-013-0785-x
Get full text
Author Notes:F. Allmendinger, M. Burghoff, W. Heil, S. Karpuk, W. Kilian, S. Knappe-Grüneberg, W. Müller, U. Schmidt, A. Schnabel, F. Seifert, Yu Sobolev, L. Trahms, K. Tullney
Description
Summary:We discuss the design and performance of a very sensitive low-field magnetometer based on the detection of free spin precession of gaseous, nuclear polarized 3He or 129Xe samples with a SQUID as magnetic flux detector. Characteristic spin precession times $T_2^\ast$of up to 115 h were measured in low magnetic fields (about 1 μT) and in the regime of motional narrowing. With the detection of the free precession of co-located 3He/129Xe nuclear spins (clock comparison), the device can be used as ultra-sensitive probe for non-magnetic spin interactions, since the magnetic dipole interaction (Zeeman-term) drops out in the weighted frequency difference, i.e., Δω = ωHe − γHe/γXe·ωXe. We report on searches for Lorentz violating signatures by monitoring the Larmor frequencies of co-located 3He/129Xe spin samples as the laboratory reference frame rotates with respect to distant stars (sidereal modulation).
Item Description:Im Titel sind "3" und "129" hochgestellt
Gesehen am 11.05.2021
Physical Description:Online Resource
ISSN:1572-9540
DOI:10.1007/s10751-013-0785-x

Similar Items