101 citations · 683 across the 21 of their papers we have counts for
11 papers · 1 filter
Quantum state reduction, and Newtonian twistor theory
Maciej Dunajski, Roger Penrose
We discuss the equivalence principle in quantum mechanics in the context of Newton--Cartan geometry, and non--relativistic twistor theory.
A new laser-ranged satellite for General Relativity and space geodesy: III. De Sitter effect and the LARES 2 space experiment
Ignazio Ciufolini, Richard Matzner, Vahe Gurzadyan +1
In two previous papers we presented the LARES 2 space experiment aimed at a very accurate test of frame-dragging and at other tests of fundamental physics and measurements of space…
A new laser-ranged satellite for General Relativity and space geodesy: I. An introduction to the LARES2 space experiment
Ignazio Ciufolini, Antonio Paolozzi, Erricos C. Pavlis +8
We introduce the LARES 2 space experiment recently approved by the Italian Space Agency (ASI). The LARES 2 satellite is planned for launch in 2019 with the new VEGA C launch vehicl…
An Improved Test of the General Relativistic Effect of Frame-Dragging Using the LARES and LAGEOS Satellites
Ignazio Ciufolini, Antonio Paolozzi, Erricos C. Pavlis +7
We report the improved test of frame-dragging, an intriguing phenomenon predicted by Einstein's General Relativity, obtained using 7 years of Satellite Laser Ranging (SLR) data of…
"Reply to A comment on A test of general relativity using the LARES and LAGEOS satellites and a GRACE Earth gravity model, by I. Ciufolini et al."
Ciufolini, Ignazio, Erricos C. Pavlis +8
In 2016, we published "A test of general relativity using the LARES and LAGEOS satellites and a GRACE Earth gravity model. Measurement of Earth's dragging of inertial frames [1]",…
Correlated "noise" in LIGO gravitational wave signals: an implication of Conformal Cyclic Cosmology
Roger Penrose
It has recently been reported by Cresswell et al. [1] that correlations in the noise surrounding the observed gravitational wave signals, GW150194, GW151226, and GW170194 were foun…
LARES Satellite Thermal Forces and a Test of General Relativity
Richard Matzner, Phuc Nguyen, Jason Brooks +11
We summarize a laser-ranged satellite test of frame-dragging, a prediction of General Relativity, and then concentrate on the estimate of thermal thrust, an important perturbation…
A Test of General Relativity Using the LARES and LAGEOS Satellites and a GRACE Earth's Gravity Model
Ignazio Ciufolini, Antonio Paolozzi, Erricos C. Pavlis +9
We present a test of General Relativity, the measurement of the Earth's dragging of inertial frames. Our result is obtained using about 3.5 years of laser-ranged observations of th…
Fundamental Physics and General Relativity with the LARES and LAGEOS satellites
Ignazio Ciufolini, Antonio Paolozzi, Rolf Koenig +7
Current observations of the universe have strengthened the interest to further test General Relativity and other theories of fundamental physics. After an introduction to the pheno…
Testing General Relativity and gravitational physics using the LARES satellite
Ignazio Ciufolini, Antonio Paolozzi, Erricos Pavlis +6
The discovery of the accelerating expansion of the Universe, thought to be driven by a mysterious form of `dark energy' constituting most of the Universe, has further revived the i…
A Positive Mass Theorem Based on the Focusing and Retardation of Null Geodesics
R. Penrose, R. D. Sorkin, E. Woolgar
A positive mass theorem for General Relativity Theory is proved. The proof is 4-dimensional in nature, and relies completely on arguments pertaining to causal structure, the basic…