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SUMMARY:Advancements in the generation of photon pairs using quantum dots 
 and thin film spontaneous parametric down conversion source
DTSTART:20261201T130000Z
DTEND:20261201T150000Z
DTSTAMP:20261111T083000Z
UID:indico-event-9948@indico.fysik.su.se
DESCRIPTION:Speakers: Charlie James Stalker (Stockholm University)\n\nThe 
 generation of photon pairs is a critical process in most quantum communica
 tion protocols and a promising resource for quantum computing. In this the
 sis we showcase a thin film of rhombohedral tungsten disulfide (3R-WS2) as
  a potential small form factor source of high fidelity Bell states. 3R-WS2
  has extremely high χ(2) non-linearities upwards of 10× more than cuttin
 g edge lithium niobate crystals. This allows for reasonably high pair-gene
 ration rate even in sub micron crystal lengths. The non-linear tensor of t
 his material allows for the generation of maximally entangled states by si
 mply pumping with any linear polarization\, allowing a much simpler down-c
 onversion source ofentangled photons. We also touch on two results in the 
 field of quantum dots\;one focuses on the relationship of exciton and biex
 citon coherence times in Hong-Ou-Mandel interference measurements for vary
 ing rates of pure dephasing\, the other introduces a computational super-r
 esolution technique designed to simplify one of the steps in quantum dot s
 ource fabrication\n\nhttps://indico.fysik.su.se/event/9948/
LOCATION:AlbaNova A3:1003 - Styrelserum/KOMKO (AlbaNova Main Building)
URL:https://indico.fysik.su.se/event/9948/
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