2604.01235 Weak Measurement Amplification of Spin Hall Effect Deflections Reaches 10^4 Amplification Factor but Signal-to-Noise Ratio Does Not Improve: A No-Go Theorem
We present a rigorous experimental and theoretical investigation addressing the claim embedded in this work's title. Using a combination of analytical derivations, numerical simulations, and where applicable, experimental data from state-of-the-art quantum hardware, we establish precise quantitative thresholds and scaling behaviors.