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X-ORIGINAL-URL:https://iqus.uw.edu/
X-WR-CALNAME:IQuS
X-WR-CALDESC:InQubator for Quantum Simulation
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BEGIN:VEVENT
CLASS:PUBLIC
UID:MEC-6786f3c62fbf9021694f6e51cc07fe3c@iqus.uw.edu
DTSTART:20221123T210000Z
DTEND:20221123T220000Z
DTSTAMP:20220930T225600Z
CREATED:20220930
LAST-MODIFIED:20220930
PRIORITY:5
SEQUENCE:0
TRANSP:OPAQUE
SUMMARY:Parton distributions and quantum entanglement
DESCRIPTION:Dmitri Kharzeev, Stony Brook University/Brookhaven National Laboratory\n\nHigh energy hadron interactions are commonly described by using a probabilistic parton model that ignores quantum entanglement present in the light-cone wave functions. I will argue that since a high energy interaction samples an instant snapshot of the hadron wave function, the phases of different Fock state wave functions cannot be measured—therefore the light-cone density matrix has to be traced over these unobservable phases. Performing this trace with the corresponding  Haar integration measure leads to ‘Haar scrambling’ of the density matrix, and to the emergence of entanglement entropy. This entanglement entropy is determined by the Fock state probability distribution, and is thus directly related to the parton structure functions. At small Bjorken x, the hadron states become maximally entangled.\n
URL:https://iqus.uw.edu/events/parton-distributions-and-quantum-entanglement/
CATEGORIES:Seminars
LOCATION:UW, 15th and Pacific, Seattle
ATTACH;FMTTYPE=image/png:https://iqus.uw.edu/wp-content/uploads/2022/09/dima.png
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