Equation 4 · How Fast Can a Horizon Learn Which Path You Took?
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the remaining fringe visibility. Read the equation part by part below; each part has a contextual explanation and a link to its mathematical background.
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Under balanced arms and otherwise ideal readout, V is the remaining fringe visibility. That statement belongs to ordinary complementarity, not black-hole mysticism. Englert derived a quantitative visibility–which-way bound for a two-path interferometer, and atom-interferometer experiments later measured visibility and distinguishability independently in agreement with the relation [ 11 , 12 ] .
Sources cited in the article section
- [1] Black Holes Decohere Quantum Superpositions ↗
- [10] Quantum Superposition of Massive Objects and the Quantization of Gravity ↗
- [16] Decoherence of Black Hole Superpositions by Hawking Radiation ↗
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