the.com/decoherence
the universe eavesdropping on your qubit until it forgets how to be two things at once.
means the process by which a quantum system loses its delicate superposition by leaking information into its environment, forcing it to behave classically.
from emerged in the 1970s-80s from physicists like H. Dieter Zeh and Wojciech Zurek trying to explain why we never see cats both alive and dead, despite schrodinger's equation allowing it.
main culpritany stray interaction counts, even a single photon
timescalecan happen in femtoseconds for large objects
quantum computing enemythe reason qubits need near-absolute-zero isolation
not collapsetechnically different from wavefunction collapse itself