Replica Keldysh analysis shows monitored 1D free fermions exhibit area-law entanglement beyond an exponentially large scale ln(l_φ,*) ~ J/[γ cos(φ)], with no genuine measurement- or unraveling-induced entanglement transitions.
Measurement-induced L´ evy flights of quan- tum information
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A measurement-only model with fermionic and ancilla chains generates volume-law entanglement and mutual information via local non-random non-commuting measurements, including using only one-body operators.
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Absence of measurement- and unraveling-induced entanglement transitions in continuously monitored one-dimensional free fermions
Replica Keldysh analysis shows monitored 1D free fermions exhibit area-law entanglement beyond an exponentially large scale ln(l_φ,*) ~ J/[γ cos(φ)], with no genuine measurement- or unraveling-induced entanglement transitions.
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Generation of Volume-Law Entanglement by Local-Measurement-Only Quantum Dynamics
A measurement-only model with fermionic and ancilla chains generates volume-law entanglement and mutual information via local non-random non-commuting measurements, including using only one-body operators.