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SUMMARY:Promotionsvortrag Physik: Optical Parametric Amplification for
  the Detection of Quantum States
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 00000010000000162F2A31C90BD443BF85C506E05FD0F2
DESCRIPTION:Ankündigung des Promotionsvortrags von: Herrn Mahmoud Kal
 ash Quantum states of light are becoming a key resource in modern phot
 onic technologies owing to their unique nonclassical properties. They 
 enable applications ranging from precision metrology and gravitational
 -wave detection to quantum communication and computing. While remarkab
 le progress has been made in their generation and control\, their effi
 cient detection remains a major challenge. This is particularly true f
 or multimode quantum states\, which are essential for high-dimensional
  quantum technologies. In this presentation\, I present optical parame
 tric amplification (OPA) as a powerful tool for the efficient detectio
 n of quantum states. I demonstrate the detection of multi-mode squeezi
 ng and\, for the first time\, the simultaneous monitoring of multimode
  entanglement. Beyond squeezing detection\, I show that OPA enables fu
 ll quantum state tomography\, applying it to squeezed vacuum and singl
 e-photon states. Finally\, I present OPA as a platform for certifying 
 the quantum features of optical states. In particular\, I demonstrate 
 that\, by strongly amplifying a single-photon state\, its quantum feat
 ures can be revealed using conventional intensity measure-ments. The p
 resented results establish OPA as a compelling alternative to conventi
 onal detection tech-niques such as homodyne and single-photon detectio
 n\, paving the way toward scalable optical quantum technologies. (Vort
 rag auf Englisch) Dem Vortrag schließt sich eine Diskussion von 15 Mi
 nuten an. Vortrag und Diskussion sind öffentlich. Diesen Verfahrenste
 ilen folgt ein nicht öffentliches Rigorosum von 45 Minuten.
DTSTART:20260710T090000Z
DTEND:20260710T103000Z
LOCATION:A.1.500 / Leuchs-Russell-Auditorium\, MPL\, Staudtstr. 2\, Er
 langen
DTSTAMP:20260701T071103Z
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