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SUMMARY: Quantum measurement protocol for many-body systems through projec
 tive measurements on ancillary sites - Elmer Doggen (Karlsruhe Institute o
 f Technology)
DTSTART:20221020T130000Z
DTEND:20221020T140000Z
UID:TALK177920@talks.cam.ac.uk
CONTACT:Jan Behrends
DESCRIPTION:I will outline a protocol for implementing quantum measurement
 s by coupling a many-body lattice system to a local degree of freedom. Thi
 s method can be used for effective density measurements through the result
 ing Rabi oscillations in the ancillary degrees of freedom. Furthermore\, a
 n analysis of the effect of repeated measurements uncovers evidence for a 
 disentangling-entangling measurement-induced transition as a function of t
 he measurement strength\, in analogy to direct measurement protocols. The 
 transition requires an extensively growing number of measurements with sys
 tem size. The dynamics is strongly non-Markovian\, featuring a wide distri
 bution of the entanglement entropy across trajectories.
LOCATION:TCM Seminar Room
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