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After readout, p2 remains at 1.02 x 10^-3

At a readout occupation of 80, the model leaves a persistent distribution with p2 = 1.02 x 10^-3 and p3 = 4.10 x 10^-5. These populations survive an additional 73 ns wait with less than 3% decay per level, identifying them as bare-level occupation.

Field
hardware and chips
What they did
Researchers calculated the remaining population of particles in a quantum qubit after readout and found that the level distribution persists longer than a simple open-system model predicts.
Why it matters
This is important for understanding the actual behavior of quantum processors, as it shows that particles do not disappear immediately but persist for 73 nanoseconds at a rate different from the photon decay rate.
#transmon#quantum computing#open-system model#dispersive readout

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