Acoustic Tests of Lorentz Symmetry Using Quartz Oscillators [electronic resource]
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| Online Access: |
Online Access (via OSTI) |
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| Corporate Author: | |
| Format: | Government Document Electronic eBook |
| Language: | English |
| Published: |
Washington, D.C. : Oak Ridge, Tenn. :
United States. Department of Energy. ; distributed by the Office of Scientific and Technical Information, U.S. Department of Energy,
2016.
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| Subjects: |
| Abstract: | Here we propose and demonstrate a test of Lorentz symmetry based on new, compact, and reliable quartz oscillator technology. Violations of Lorentz invariance in the matter and photon sector of the standard model extension generate anisotropies in particles' inertial masses and the elastic constants of solids, giving rise to measurable anisotropies in the resonance frequencies of acoustic modes in solids. A first realization of such a "phonon-sector" test of Lorentz symmetry using room-temperature stress-compensated-cut crystals yields 120 h of data at a frequency resolution of 2.4 × 10<sup>-15</sup> and a limit of $\bar{c}$ $n\atop{Q}$ = (- 1.8 ± 2.2) × 10<sup>-14</sup> GeV on the most weakly constrained neutron-sector c coefficient of the standard model extension. Future experiments with cryogenic oscillators promise significant improvements in accuracy, opening up the potential for improved limits on Lorentz violation in the neutron, proton, electron, and photon sector. |
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| Item Description: | Published through SciTech Connect. 02/24/2016. "llnl-jrnl--733821" Physical Review. X 6 1 ISSN 2160-3308; PRXHAE AM. Anthony Lo; Philipp Haslinger; Eli Mizrachi; Loïc Anderegg; Holger Müller; Michael Hohensee; Maxim Goryachev; Michael E. Tobar. David and Lucile Packard Foundation. |
| Physical Description: | Article No. 011018 : digital, PDF file. |