Could this copycat black hole be a new type of star?
It looks like a black hole and bends light like a black hole, but it could actually be a new type of star.
Astronomy
Apr 18, 2023
2
499
News tagged with gravity theory
SLAC theorist explains quantum gravity
Our world is ruled by four fundamental forces: the gravitational pull of massive objects, the electromagnetic interaction between electric charges, the strong nuclear interaction holding atomic nuclei together and the weak ...
Quantum Physics
Nov 19, 2015
85
346
Test of wave function collapse suggests gravity is not the answer
A team of researchers from Germany, Italy and Hungary has tested a theory that suggests gravity is the force behind quantum collapse and has found no evidence to support it. In their paper published in the journal Nature ...
Study finds semiclassical gravity counterintuitive, but on the horizon of testability
(Phys.org) —One of the more controversial theories of quantum gravity, which attempts to unify quantum mechanics and general relativity, is semiclassical gravity, which was proposed in the 1960s. As its name suggests, semiclassical ...
New research synthesizes different aspects of causality in quantum field theory
In current quantum field theory, causality is typically defined by the vanishing of field commutators for spacelike separations. Two researchers at the University of Massachusetts and Universidade Federal Rural in Rio de ...
Dark Energy is real: WiggleZ galaxy project proves Einstein was right again
(PhysOrg.com) -- An Australian-based astronomy team, co-led by Professor Michael Drinkwater from the School of Mathematics and Physics (SMP) at The University of Queensland (UQ), has shown that the mysterious 'dark energy' ...
Astronomy
May 19, 2011
97
0
Scientists help probe dark energy by testing gravity
Could one of the biggest puzzles in astrophysics be solved by reworking Albert Einstein's theory of gravity? A new study co-authored by NASA scientists says not yet.
Astronomy
Aug 24, 2022
241
529
Space-based experiment could test gravity's effects on quantum entanglement
(Phys.org) —Physicists are continually looking for ways to unify the theory of relativity, which describes large-scale phenomena, with quantum theory, which describes small-scale phenomena. In a new proposed experiment ...
One clock with two times: When quantum mechanics meets general relativity
The unification of quantum mechanics and Einstein's general relativity is one of the most exciting and still open questions in modern physics. General relativity, the joint theory of gravity, space and time gives predictions ...
Quantum Physics
Oct 19, 2011
8
8
Seeing is more than believing: Exploring 'de Sitter space' to explain gravity in the expanding early universe
Having more tools helps; having the right tools is better. Utilizing multiple dimensions may simplify difficult problems—not only in science fiction but also in physics—and tie together conflicting theories.
Quantum Physics
Mar 31, 2023
67
905
