The paper derives that privacy-optimal additive noise satisfies the time-independent Schrödinger equation when Fisher information is minimized under a utility constraint, and reports a privacy-utility trade-off that is essentially a Cramér-Rao bound.
A lower bou nd for the fisher information measure
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Taking a Lesson from Quantum Particles for Statistical Data Privacy
The paper derives that privacy-optimal additive noise satisfies the time-independent Schrödinger equation when Fisher information is minimized under a utility constraint, and reports a privacy-utility trade-off that is essentially a Cramér-Rao bound.