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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...

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Hauptverfasser: Allmendinger, Fabian (Verfasst von) , Burghoff, M. (Verfasst von) , Heil, W. (Verfasst von) , Karpuk, S. (Verfasst von) , Kilian, W. (Verfasst von) , Knappe-Grüneberg, S. (Verfasst von) , Müller, W. (Verfasst von) , Schmidt, Ulrich (Verfasst von) , Schnabel, A. (Verfasst von) , Seifert, F. (Verfasst von) , Sobolev, Yu (Verfasst von) , Trahms, L. (Verfasst von) , Tullney, K. (Verfasst von)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 21 February 2013
In: Hyperfine interactions
Year: 2013, Jahrgang: 215, Pages: 15-23
ISSN:1572-9540
DOI:10.1007/s10751-013-0785-x
Online-Zugang:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1007/s10751-013-0785-x
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Verfasserangaben: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
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Zusammenfassung: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).
Beschreibung:Im Titel sind "3" und "129" hochgestellt
Gesehen am 11.05.2021
Beschreibung:Online Resource
ISSN:1572-9540
DOI:10.1007/s10751-013-0785-x

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