Scientists achieve the first direct measurement of the quantum metric tensor in black phosphorus, advancing understanding of quantum states in solid materials. (Nanowerk News) Quantum distance refers ...

Forbes contributors publish independent expert analyses and insights. The Universe is out there, waiting for you to discover it. When it comes to understanding the Universe, there are a few things ...

Some physicists believe that the metric tensor, a mathematical object describing the curvature of space-time, is simply a feature of space-time. Some physicists, most often mathematical physicists, ...

Quantum distance refers to a measure of quantum mechanical similarity between two quantum states. A quantum distance of one means that the two quantum states are the same, whereas a quantum distance ...