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SUMMARY:A Semiconductor Photon Sorter -  Cavendish Laboratory\, University
  of Cambridge
DTSTART:20180523T130000Z
DTEND:20180523T140000Z
UID:TALK106324@talks.cam.ac.uk
CONTACT:Dr Kaveh Delfanazari
DESCRIPTION:Photons may be considered ideal carriers of information as the
 y can be transmitted over long distances with minimal decoherence.  Additi
 onally\, they can be used to perform logic operations\, and as qubits [1].
   Semiconductor quantum dots are a popular choice for generating of single
  photons\, as they demonstrate nearly perfectly indistinguishable photons 
 and high internal quantum efficiency.  Their coherence can also be improve
 d through the use of micropillar cavities [2].\n\nThis talk discusses a se
 miconductor photon sorter [3].  It begins with a brief overview of the the
 ory behind the concept\, before considering the system itself.  Here\, a s
 emiconductor quantum dot is weakly coupled to a micropillar cavity\, and t
 he nonlinearity of a transition is used to alter the counting statistics o
 f a Poissonian beam.  This allows photons to be sorted by number. \n\nRefe
 rence:\n[1] Lee\, J.\, Bennett\, A.\, Stevenson\, R.\, Ellis\, D.\, Farrer
 \, I.\, Ritchie\, D. and Shields\, A. (2018). Multi-dimensional photonic s
 tates from a quantum dot. Quantum Science and Technology\, 3(2)\, p.024008
 .\n[2] Senellart\, P.\, Solomon\, G. and White\, A. (2017). High-performan
 ce semiconductor quantum-dot single-photon sources. Nature Nanotechnology\
 , 12(11)\, pp.1026-1039.\n[3] Bennett\, A.\, Lee\, J.\, Ellis\, D.\, Farre
 r\, I.\, Ritchie\, D. and Shields\, A. (2016). A semiconductor photon-sort
 er. Nature Nanotechnology\, 11(10)\, pp.857-860.\n\n\n\n
LOCATION:Mott Seminar Room (Mott Building Room 531)\, Cavendish Laboratory
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