Piotr Sierant

Non-stabilizerness in quantum-enhanced metrological protocols

2025 · arXiv (Cornell University)

Non-stabilizerness (colloquially "magic") characterizes genuinely quantum (beyond-Clifford) operations necessary for preparation of quantum states, and can be measured by stabilizer Rényi entropy (SRE). For permutationally symmetric states, we show that the SRE depends, for sufficiently …