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SUMMARY:Photon-instanton collider implemented by a superconducting circuit
DTSTART:20231205T121500
DTEND:20231205T140000
DTSTAMP:20260411T071827Z
UID:ddad07d085b1061a4711873d116c485d795e0ec48748178068827808
CATEGORIES:Conferences - Seminars
DESCRIPTION:Vladimir Manucharyan\nInstantons\, spacetime-localized quantum
  field tunneling events\, are ubiquitous in correlated condensed matter an
 d high energy systems. However\, their direct observation through collisio
 ns with conventional particles has not been considered possible. We show h
 ow recent advances in circuit quantum electrodynamics\, namely embedding 
 a single quantum phase-slip defect into a high-impedance superconducting 
 waveguide\, allow the observation of inelastic collisions of single micro
 wave photons with instantons (phase slips). We show both experimentally an
 d theoretically that a single photon-instanton collision can cause a sp
 litting of the incident photon into a possibly large (odd) number of lowe
 r-energy photons\, with a nearly unit probability. This effect has no anal
 ogues in non-linear optics and is rather tied to the dynamics of quantum 
 impurity models near quantum critical points.\n 
LOCATION:GA 3 21 https://plan.epfl.ch/?room==GA%203%2021
STATUS:CONFIRMED
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