Quantum gravity is one of the biggest unresolved and challenging problems in physics, as it seeks to reconcile quantum mechanics, which governs the microscopic world, and general relativity, which describes the macroscopic world of gravity and space-time. Efforts to understand quantum gravity have been focused almost entirely at the theoretical level, but Monika Schleier-Smith at… Continue reading Can Quantum Gravity Be Created in the Lab?
Category: quantum entanglement
How the Inside of a Black Hole Is Secretly on the Outside
Theoretical physics has been in crisis mode ever since 1974, when Stephen Hawking argued that black holes destroy information. Hawking showed that a black hole can evaporate, gradually transforming itself and anything it consumes into a featureless cloud of radiation. During the process, information about what fell into the black hole is apparently lost, violating… Continue reading How the Inside of a Black Hole Is Secretly on the Outside
Computer Science Proof Lifts Limits on Quantum Entanglement
To understand the new result, start by picturing a quantum system such as a set of atoms. Each atom has a property, called spin, that is somewhat similar to the alignment of a magnet, in that it points along an axis. But unlike a magnet’s alignment, an atom’s spin can be in a state that’s… Continue reading Computer Science Proof Lifts Limits on Quantum Entanglement
How quantum entanglement works – Jarvis Blog
Quantum entanglement is a physical phenomenon in which two particles remain connected over long distances so that the actions performed on one particle also have an effect on the second particle. If it sounds mind-boggling, it’s because it is. Albert Einstein, who first discussed the idea of quantum entanglement in a joint paper with Boris… Continue reading How quantum entanglement works – Jarvis Blog