Quantum gyroscopes and Gödel's universe: entanglement opens a new testing ground for cosmology
Open Access
- 26 June 2002
- journal article
- Published by IOP Publishing in New Journal of Physics
- Vol. 4 (1), 37
- https://doi.org/10.1088/1367-2630/4/1/337
Abstract
Some exact solutions of Einstein's field equations represent a rotating universe. One example is Gödel's cosmological model. Bianchi solutions generalize the Gödel metric and include the expansion of the universe. We propose a measurement of the cosmic rotation using a light or matter wave interferometer based on the Sagnac effect. Entanglement between the quanta employed in this quantum gyroscope enhances the accuracy, thereby coming closer to the more-than-challenging requirements of such experiments.Keywords
This publication has 24 references indexed in Scilit:
- Correlated input-port, matter-wave interferometer: Quantum-noise limits to the atom-laser gyroscopePhysical Review A, 1998
- Test of General Relativity and Measurement of the Lense-Thirring Effect with Two Earth SatellitesScience, 1998
- Sagnac experiment with electrons: Observation of the rotational phase shift of electron waves in vacuumPhysical Review A, 1993
- Measurement of the Lense-Thirring drag on high-altitude, laser-ranged artificial satellitesPhysical Review Letters, 1986
- On the gravitational effects of rotating masses: The Thirring-Lense papersGeneral Relativity and Gravitation, 1984
- Proposed optical test of metric gravitation theoriesPhysical Review A, 1981
- Observation of Gravitationally Induced Quantum InterferencePhysical Review Letters, 1975
- Possible New Experimental Test of General Relativity TheoryPhysical Review Letters, 1960
- An Example of a New Type of Cosmological Solutions of Einstein's Field Equations of GravitationReviews of Modern Physics, 1949
- The Effect of the Earth's Rotation on the Velocity of Light, II.The Astrophysical Journal, 1925