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pro vyhledávání: '"Stanwix, P. L."'
Akademický článek
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Autor:
Nagel, M., Parker, S. R., Kovalchuk, E. V., Stanwix, P. L., Hartnett, J. G., Ivanov, E. N., Peters, A., Tobar, M. E.
Publikováno v:
Nature Communications 6, 8174 (2015)
Lorentz symmetry is a foundational property of modern physics, underlying the standard model of particles and general relativity. It is anticipated that these two theories are low energy approximations of a single theory that is unified and consisten
Externí odkaz:
http://arxiv.org/abs/1412.6954
Autor:
Tobar, M. E., Stanwix, P. L., McFerran, J. J., Guéna, J., Abgrall, M., Bize, S., Clairon, A., Laurent, Ph., Rosenbusch, P., Rovera, D., Santarelli, G.
The frequencies of three separate Cs fountain clocks and one Rb fountain clock have been compared to various hydrogen masers to search for periodic changes correlated with the changing solar gravitational potential at the Earth and boost with respect
Externí odkaz:
http://arxiv.org/abs/1306.1571
Autor:
Pham, L. M., Sage, D. Le, Stanwix, P. L., Yeung, T. K., Glenn, D., Trifonov, A., Cappellaro, P., Hemmer, P. R., Lukin, M. D., Park, H., Yacoby, A., Walsworth, R. L.
Publikováno v:
New J. Phys. 13, 045021 (2011)
We demonstrate a method of imaging spatially varying magnetic fields using a thin layer of nitrogen-vacancy (NV) centers at the surface of a diamond chip. Fluorescence emitted by the two-dimensional NV ensemble is detected by a CCD array, from which
Externí odkaz:
http://arxiv.org/abs/1207.3339
Publikováno v:
Phys.Rev.Lett.106:180401,2011
We determine the sensitivity of a modern Michelson-Morley resonant-cavity experiment to the higher-order nonbirefringent and nondispersive coefficients of the Lorentz-violating Standard-Model Extension. Data from a recent year-long run of the experim
Externí odkaz:
http://arxiv.org/abs/1102.0081
Autor:
Stanwix, P. L., Pham, L. M., Maze, J. R., Sage, D. Le, Yeung, T. K., Cappellaro, P., Hemmer, P. R., Yacoby, A., Lukin, M. D., Walsworth, R. L.
We present an experimental and theoretical study of electronic spin decoherence in ensembles of nitrogen-vacancy (NV) color centers in bulk high-purity diamond at room temperature. Under appropriate conditions, we find ensemble NV spin coherence time
Externí odkaz:
http://arxiv.org/abs/1006.4219
Autor:
Hohensee, Michael A., Stanwix, Paul. L., Tobar, Michael Edmund, Parker, Stephen R., Phillips, David F., Walsworth, Ronald L.
Publikováno v:
Phys.Rev.D82:076001,2010
We demonstrate that Michelson-Morley tests, which detect direction-dependent anisotropies in the speed of light, can also be used to place limits upon isotropic deviations of the vacuum speed of light from $c$, as described by the photon sector Stand
Externí odkaz:
http://arxiv.org/abs/1006.1376
Autor:
Tobar, Michael E., Ivanov, Eugene N., Stanwix, Paul L., Floch, Jean-Michel G. le, Hartnett, John G.
We report the first operation of a rotating odd-parity Lorentz Invariance test in electrodynamics using a microwave Mach-Zehnder interferometer with permeable material in one arm. The experiment sets a direct bound to $ \kappa_{tr}$ of $-0.3\pm 3\tim
Externí odkaz:
http://arxiv.org/abs/0909.2076
Akademický článek
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Improved test of Lorentz Invariance in Electrodynamics using Rotating Cryogenic Sapphire Oscillators
Publikováno v:
Phys.Rev.D74:081101,2006
We present new results from our test of Lorentz invariance, which compares two orthogonal cryogenic sapphire microwave oscillators rotating in the lab. We have now acquired over 1 year of data, allowing us to avoid the short data set approximation (l
Externí odkaz:
http://arxiv.org/abs/gr-qc/0609072