Transitions in the Learnability of Global Charges from Local Measurements.
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DOI: 10.1103/physrevlett.129.200602
Abstract: We consider monitored quantum systems with a global conserved charge, and ask how efficiently an observer ("eavesdropper") can learn the global charge of such systems from local projective measurements. We find phase transitions as a… read more here.
Keywords: local measurements; global charges; transitions learnability; charge ... See more keywords