kietoutumiseen

Kietoutumiseen, often translated as entanglement, is a physical phenomenon that occurs when two or more quantum particles become linked in such a way that their fates are intertwined, regardless of the distance separating them. This connection means that measuring a property of one particle instantaneously influences the state of the other particle(s), even if they are light-years apart.

The concept of entanglement was famously described by Albert Einstein as "spooky action at a distance." It challenges our classical intuition about causality and locality, as the influence appears to be faster than the speed of light. However, entanglement does not allow for faster-than-light communication. While the states are correlated instantly, transmitting information requires a classical channel to compare the measurement results.

Entanglement is a fundamental resource in quantum mechanics and has significant implications for quantum computing and quantum communication. Quantum computers leverage entanglement to perform complex calculations that are intractable for classical computers. In quantum communication, entanglement is used to develop secure encryption methods, such as quantum key distribution, which offer unprecedented levels of security. Research continues to explore the full potential and implications of this fascinating quantum phenomenon.