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. Author manuscript; available in PMC: 2021 Mar 4.
Published in final edited form as: Phys Rev Lett. 2020 Jan 10;124(1):010505. doi: 10.1103/PhysRevLett.124.010505

TABLE I.

Characteristics of the five protocol instances. The number of subblocks is approximately the number of seconds of experiment time required. The entropy rate is estimated by Lnact/(βnact), where nact is the actual number of trials executed in an instance, Lnact is the running log2-QEF value at the end of an instance, and β is the power associated with the QEF which is used for each executed trial and determined at the calibration stage. The trial rate in the experiment was approximately 100 kHz.

Instance n/107 nact/107 Number of subblocks β Entropy rate/10−4
1 5.25 2.32 233 0.010 6.07
2 4.74 3.76 379 0.010 3.78
3 5.92 2.85 287 0.009 5.47
4 6.20 2.83 285 0.009 5.53
5 5.49 2.72 274 0.010 5.20