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quant-ph2025
The time qubit
Yakov Bloch
A spin precessing in a magnetic field is often used as a quantum clock, for example in tunneling-time measurements. We show that such a clock can exist in a coherent superposition…
quant-ph2025
Survival acceleration
Yakov Bloch, Avshalom C. Elitzur
Relativistic time dilation implies that an accelerating excited atom would have its lifetime prolonged in the lab frame. In this paper, we demonstrate a complementary effect: Longe…