Results 11 to 20 of about 66,768 (246)

Recent Experimental Tests of Special Relativity

, 2005
We review our recent Michelson-Morley (MM) and Kennedy-Thorndike (KT) experiment, which tests Lorentz invariance in the photon sector, and report first results of our ongoing atomic clock test of Lorentz invariance in the matter sector.
A. Bauch, A. Brillet, A. Einstein, A.A. Michelson, A.P. Lightman, A.V. Kostelecky, C. Braxmaier, C. Salomon, D. Bear, D. Colladay, D. Colladay, D. Hils, D.F. Phillips, D.J. Fixsen, F. Cané, G. Saathoff, H. Marion, H. Müller, H. Müller, H. Müller, H.E. Ives, H.P. Robertson, Kostelecky, L. Blanchet, L.-S. Hou, Lubin, M.E. Tobar, M.E. Tobar, P. Wolf, P. Wolf, P. Wolf, P. Wolf, R. Bluhm, R. Gambini, R. Mansouri, R.J. Kennedy, S. Bize, T. Damour, T.E. Parker, V.A. Kostelecky, V.A. Kostelecky, W.-T. Ni   +41 more
core   +3 more sources

Overlooked effects of wavefront reception with or without speed limit, from aberration to time measurement

Results in Optics
A general approach to wavefront reception applicable to any type of wave allows to point out some overlooked aspects and ignored consequences of established theories.
Denis Michel
doaj   +1 more source

Was Einstein Right? Testing Relativity at the Centenary

, 2005
We review the experimental evidence for Einstein's special and general relativity. A variety of high precision null experiments verify the weak equivalence principle and local Lorentz invariance, while gravitational redshift and other clock experiments ...
Adelberger, Alväger, Baessler, Bailes, Barish, Bauch, Berti, Bertotti, Bize, Braginsky, Brecher, Brillet, Champeney, Chiaverini, Chupp, Ciufolini, Colladay, Colladay, Cutler, Damour, Drever, Esposito-Farèse, Eötvös, Farley, Fischer, Gabriel, Godone, Haugan, Hoyle, Hoyle, Hughes, Ives, Jacobson, Jaseja, Kostelecký, Kramer, Krisher, Lamoreaux, Lightman, Long, Long, Lyne, Marion, Martins, Mattingly, Michelson, Milani, Niebauer, Peik, Prestage, Prestage, Riis, Roll, Rossi, Shankland, Shapiro, Stairs, Talmadge, Thorne, Turneaure, Turyshev, Uzan, Vessot, Visser, Weisberg, Will, Will, Will, Will, Will, Williams, Williams   +71 more
core   +2 more sources

The Equivalence Principle Revisited [PDF]

, 2002
A precise formulation of the strong Equivalence Principle is essential to the understanding of the relationship between gravitation and quantum mechanics.
Aldrovandi, R., Barros, P. B., Pereira, J. G.   +2 more
core   +2 more sources

Test of Time Dilation Using Stored Li+ Ions as Clocks at Relativistic Speed

, 2014
We present the concluding result from an Ives-Stilwell-type time dilation experiment using 7Li+ ions confined at a velocity of beta = v/c = 0.338 in the storage ring ESR at Darmstadt. A Lambda-type three-level system within the hyperfine structure of the
Bing, Dennis, Botermann, Benjamin, Geppert, Christopher, Gwinner, Gerald, Huber, Gerhard, Hänsch, Theodor W., Karpuk, Sergei, Krieger, Andreas, Kühl, Thomas, Novotny, Christian, Nörtershäuser, Wilfried, Reinhardt, Sascha, Saathoff, Guido, Schwalm, Dirk, Stöhlker, Thomas, Sánchez, Rodolfo, Wolf, Andreas   +16 more
core   +1 more source

Observers' measurements in premetric electrodynamics I: Time and radar length

, 2018
The description of an observer's measurement in general relativity and the standard model of particle physics is closely related to the spacetime metric. In order to understand and interpret measurements, which test the metric structure of the spacetime,
Gürlebeck, Norman, Pfeifer, Christian
core   +1 more source

On Locality in Quantum General Relativity and Quantum Gravity [PDF]

, 1996
The physical concept of locality is first analyzed in the special relativistic quantum regime, and compared with that of microcausality and the local commutativity of quantum fields. Its extrapolation to quantum general relativity on quantum bundles over
A. Einstein, A. Einstein, A. J. Kálnay, A. Schilpp, B. Gerlach, B. S. DeWitt, B. Thaller, E. P. Wigner, E. P. Wigner, E. Prugovečki, E. Prugovečki, E. Prugovečki, E. Prugovečki, E. Prugovečki, E. Prugovečki, E. Prugovečki, Eduard Prugovečki, F. E. Schroeck Jr., G. C. Hegerfeldt, H-H. Borzeszkowski von, H. S. Snyder, J. Glimm, J. T. Cushing, Kh. Namsrai, L. Baulieu, L. P. Horwitz, L. P. Horwitz, M. Born, M. Friedman, M. H. Goroff, M. Spivak, N. Bohr, N. D. Birrell, N. N. Bogolubov, N. N. Bogolubov, P. A. M. Dirac, R. F. Streater, R. P. Feynman, R. P. Feynman, S. T. Ali, T. D. Newton, Y. Choquet-Bruhat   +41 more
core   +2 more sources

Microbial exopolysaccharide production by polyextremophiles in the adaptation to multiple extremes

FEBS Letters, EarlyView.
Polyextremophiles are microorganisms that endure multiple extreme conditions by various adaptation strategies that also include the production of exopolysaccharides (EPSs). This review provides an integrated perspective on EPS biosynthesis, function, and regulation in these organisms, emphasizing their critical role in survival and highlighting their ...
Tracey M Gloster, Ebru Toksoy Öner
wiley   +1 more source

Resource Letter PTG-1: Precision Tests of Gravity

, 2010
This resource letter provides an introduction to some of the main current topics in experimental tests of general relativity as well as to some of the historical literature. It is intended to serve as a guide to the field for upper-division undergraduate
Will, Clifford M.
core   +1 more source

Imeglimin attenuates liver fibrosis by inhibiting vesicular ATP release from hepatic stellate cells

FEBS Letters, EarlyView.
Imeglimin, at clinically relevant concentrations, inhibits vesicular ATP accumulation and release from hepatic stellate cells, thereby attenuating purinergic signaling and reducing fibrogenic activation. This mechanism reveals a newly identified antifibrotic action of imeglimin beyond glycemic control.
Seiji Nomura, Lixiang Wang, Nao Hasuzawa, Ayako Nagayama, Sawako Moriyama, Kenji Ashida, Yoshinori Moriyama, Masatoshi Nomura, Ken Yamamoto   +8 more
wiley   +1 more source