Page 2 - Quantum Gravity News Today

Researchers have measured the gravitational pull exhibited by the smallest mass yet, a breakthrough that could lead to a quantum theory of gravity at last.

The gravitational force, originally discovered by physicist and mathematician Isaac Newton, is known to be fundamentally weak, gaining prominence and being detectable only at macroscopic scales

Scientists have managed to measure gravity at the microscopic scale, a development that could potentially lead to a better understanding of quantum gravity theory.

A device that measures minuscule gravitational forces could help us understand how gravity works on the quantum scale

A bundle of magnets and glass had a slight but detectable gravitational pull, pushing scientists closer to the boundary between classical and quantum physics.

Gravastars within gravastars would be a mind-blowing answer to a conundrum established by Einstein.

Physicists’ search for a theory that explains all reality in one framework appeared to have stalled. But now they are reinvigorating the hunt by exploring a wild landscape of abstract geometry

What is time? Sten Odenwald explains how recent theories about the quantum nature of gravity provide some unique and fantastic answers.

“For every complex problem there is an answer that is clear, simple, and wrong.” – H.L. Menchen

Entanglement is a distinguishing feature of quantum many-body systems, and uncovering the entanglement structure for large particle numbers in quantum simulation experiments is a fundamental challenge in quantum information science1. Here we perform experimental investigations of entanglement on the basis of the entanglement Hamiltonian (EH)2 as an effective description of the reduced density operator for large subsystems. We prepare ground and excited states of a one-dimensional XXZ He...