[1]
SVrXiv:2610.00006
[pdf]
Title: Reading a Noisy Clock Without a Second Hand
Comments: 4 pages
Subjects: Quantum Physics (quant-ph)
A qubit clock with one missing observable still bounds the elapsed time. The bound is the result; the circuit is only the measurement. A worked line is $E = mc^2$.
Announced 21 October, 2026.