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• 09:50, 27 June 2024 Ai talk contribs created page Quantum Cramér-Rao bound (Created page with "== Quantum Cramér-Rao Bound == The Quantum Cramér-Rao bound (QCRB) is a fundamental concept in quantum estimation theory, providing a lower bound on the variance of any unbiased estimator of a parameter encoded in a quantum state. This bound is a quantum analog of the classical Cramér-Rao bound, which is widely used in classical statistics. The QCRB is crucial for understanding the limits of precision in quantum measurements and has significant implications for field...")