Skip to main content Module measurement Copy item path Source BornRule Born rule utilities. MeasurementBasis A measurement basis: set of eigenstates and corresponding eigenvalues. MeasurementRenderer Renderer for measurement collapse visualization. decoherence Apply decoherence to a density matrix: off-diagonal elements decay.
Models Lindblad-type decoherence: rho_ij *= exp(-rate * dt) for i != j. measure Perform a projective measurement in the given basis.
Returns (outcome index, collapsed state). projective_measurement Projective measurement with a single projector.
Returns (probability, post-measurement state). quantum_zeno_effect Quantum Zeno effect: frequent measurements freeze evolution.
Simulates time evolution with periodic measurements and returns
the probability of remaining in the initial state at each measurement. weak_measurement Weak measurement: disturbs the state minimally.
Returns (weak value, post-measurement state).