The arrow of time exhibits nonanalytic behavior at the critical point of measurement-induced phase transitions, with an identified critical exponent, in an exactly solved model of random quantum circuits with non-projective measurements.
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Derives upper bounds on pointwise mutual information in terms of stochastic Fisher information that recover known averaged bounds.
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Arrow of Time as an indicator of Measurement-Induced Phase Transitions
The arrow of time exhibits nonanalytic behavior at the critical point of measurement-induced phase transitions, with an identified critical exponent, in an exactly solved model of random quantum circuits with non-projective measurements.
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Pointwise mutual information bounded by stochastic Fisher information
Derives upper bounds on pointwise mutual information in terms of stochastic Fisher information that recover known averaged bounds.