# Importance of quantum decoherence in brain processes (Tegmark 2000)

This paper proves that the decoherence timescale in the brain is ~10^-13 seconds, demonstrating the absolute physical limit of sustained quantum states at biological temperatures.
Due to copyright and its format, the full PDF is not hosted in this repository.

**Citation:**
Tegmark, M. (2000). *Phys. Rev. E* **61**, 4194.