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|Title:||Testing Lorentz invariance using an odd-parity asymmetric optical resonator|
|Citation:||Physical Review D - Particles, Fields, Gravitation and Cosmology, 2011; 84(8):081101-1-081101-5|
|Publisher:||American Physical Society|
|Fred N. Baynes, Andre N. Luiten, and Michael E. Tobar|
|Abstract:||We present the first experimental test of Lorentz invariance using the frequency difference between counter-propagating modes in an asymmetric odd-parity optical resonator. This type of test is ∼104 more sensitive to odd-parity and isotropic (scalar) violations of Lorentz invariance than equivalent conventional even-parity experiments due to the asymmetry of the optical resonator. The disadvantages of odd-parity resonators have been negated by the use of counter-propagating modes, delivering a high level of immunity to environmental fluctuations. With a nonrotating experiment our result limits the isotropic Lorentz violating parameter κ˜tr to 3.4±6.2×10−9, the best reported constraint from direct measurements. Using this technique the bounds on odd-parity and scalar violations of Lorentz invariance can be improved by many orders of magnitude.|
|Rights:||© 2011 American Physical Society|
|Appears in Collections:||IPAS publications|
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