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SUMMARY:On-chip quantum photonics using quantum dots - Peter Lodahl (Niels
  Bohr Institute\, Denmark)
DTSTART:20170418T130000Z
DTEND:20170418T140000Z
UID:TALK72054@talks.cam.ac.uk
CONTACT:6270
DESCRIPTION:Semiconductor quantum dots have excellent optical performance 
 dramatically in recent years\, and today a clear pathway is laid out for c
 onstructing a deterministic and coherent photon-emitter interface by embed
 ding quantum dots in photonic nanostructures [1]. Such an interface can be
  employed as an on-demand single-photon source\, but more generally enable
 s deterministic quantum gates. We review the recent experimental progress 
 on quantum dots coupled to nanophotonic waveguides including the internal 
 single-photon coupling efficiency [2]\, coherence [3]\, and transfer effic
 iency to an optical fiber [4]. Currently\, the first commercial products b
 ased on this technology are being brought to the market [5]. Finally the f
 undamental decoherence processes of a quantum dot single-photon source are
  discussed [6].\n[1] Lodahl et al.\, Rev. Mod. Phys. 87\, 347 (2015).\n[2]
  Arcari et al.\, Phys. Rev. Lett. 113\, 093603 (2014).\n[3] Kirsanske et a
 l.\, submitted\, arXiv:1701.08131\n[4] Daveau et al.\, Optica 4\, 178 (201
 7). \n[5] Single-photon chip technology is currently commercialized by the
  company Sparrow Quantum A/S\, www.sparrowquantum.com\n[6] Tighineanu et a
 l.\, arXiv:1702.04812\n
LOCATION:Ryle Seminar Room (930) 
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