Research news on Gravitational fields

Gravitational fields as a research area encompass theoretical, computational, and experimental studies of how mass-energy curves spacetime and produces gravitational interactions, primarily within the frameworks of general relativity and alternative gravity theories. The field includes analysis of weak and strong-field regimes, gravitational radiation, and the dynamics of compact objects such as black holes and neutron stars. It involves precision tests of gravity, modeling of gravitational lensing and cosmological structure formation, and development of numerical relativity techniques. Research also addresses quantum aspects of gravity, including semiclassical approximations, effective field theories, and attempts to reconcile gravitational fields with quantum mechanics.

Dark matter does not defy gravity, study suggests

Does dark matter follow the same laws as ordinary matter? The mystery of this invisible and hypothetical component of our universe—which neither emits nor reflects light—remains unsolved. A team involving members from the ...

Collaboration uncovers how gravity influences qubits

A collaboration between Nordita, the Nordic Institute for Theoretical Physics, hosted by Stockholm University, KTH and Google Quantum AI explores how gravitational fields influence quantum computing hardware, laying the foundation ...

Another way to extract energy from black holes?

The gravitational field of a rotating black hole is powerful and strange. It is so powerful that it warps space and time back upon itself, and it is so strange that even simple concepts such as motion and rotation are turned ...