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SUMMARY:From Atomic Defects to Secure Links: Quantum Light Emission in hBN
  and its Application in QKD - Serkan Ates\, Sabancı University
DTSTART:20260127T100000Z
DTEND:20260127T110000Z
UID:TALK243613@talks.cam.ac.uk
CONTACT:Dr. Yusuf Karli
DESCRIPTION:The development of scalable quantum technologies relies on the
  discovery and engineering of robust single-photon sources. Recently\, hex
 agonal Boron Nitride (hBN) has emerged as a disruptive platform for quantu
 m light generation. Unlike traditional 3D semiconductors\, this two-dimens
 ional material hosts bright and stable quantum emitters that operate at ro
 om temperature\, offering a unique pathway for practical quantum technolog
 ies. In this talk\, I will discuss the journey of developing hBN-based qua
 ntum light sources at the Quantum Photonics Systems Laboratory (QPSLab). W
 e will first explore the fundamental material properties that allow us to 
 isolate and control individual atomic defects. I will then present our rec
 ent findings on the optical properties and polarization dynamics of these 
 emitters\, which are critical for their effective utilization in quantum s
 ystems. Finally\, I will demonstrate how these 2D-based sources can be mov
 ed from fundamental studies to real-world applications. Specifically\, I w
 ill present our implementation of Quantum Key Distribution (QKD) protocols
  using hBN single-photon emitters\, highlighting the potential of 2D mater
 ials as a viable platform for secure quantum communication.
LOCATION:Ray Dolby Center - B2.002 
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