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quant-ph2025
Macroscopicity of quantum superposition
Xiao-Fu Peng
In this paper, we define a universal measure of macroscopicity in the form of, ({\em experimentally observed coherence time})/({\em characteristic time required to repeatably d…
quant-ph2022
Repeatedly readable state, spontaneous collapse, and quantum/classical boundary
Xiao-Fu Peng, Yu-Hang Luo, Jiang Zhu +5
We propose a model to identify the quantum/classical boundary. The model introduces a spontaneous collapse of state superposition: $\frac{d}{dt} ρ_{ij} =-\frac{i}{\hbar}[H,ρ]_{ij}-…