How Fast Is Quantum Entanglement? Scientists Clock the Speed of the Instantaneous

Quantum Entanglement Laser Pulse — An atom is hit by a laser pulse. One electron is ripped out of the atom, another electron is shifted into a state with higher energy. Credit: TU Wien

Scientists have developed simulations to investigate the rapid processes of quantum theory, revealing insights into quantum entanglement and its formation.

These findings, which detail how entanglement can be quantified and observed within attoseconds, demonstrate significant advances in understanding the temporal dynamics of quantum events.

Quantum Theory and Time: Unraveling Instantaneous Effects

Quantum theory deals with events that occur on incredibly short time scales. In the past, these events were thought to happen instantaneously, with no time in between: an electron orbits the nucleus of an DOI: 10.1103/PhysRevLett.133.163201