Journal
OPTICS LETTERS
Volume 44, Issue 2, Pages 275-278Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.44.000275
Keywords
-
Categories
Funding
- Engineering and Physical Sciences Research Council (EPSRC) [EP/K033085/1, EP/L024020/1, EP/M013472/1]
- European Research Council (ERC) [2014-STG 640079, 731473]
- QuantERA ERA-NET SQUARE project
- EPSRC [EP/R023018/1, EP/R043841/1, EP/L024020/1, EP/K033085/1, EP/M013472/1] Funding Source: UKRI
Ask authors/readers for more resources
Advances in quantum computing are a rapidly growing threat towards modern cryptography. Quantum key distribution (QKD) provides long-term security without assuming the computational power of an adversary. However, inconsistencies between theory and experiment have raised questions in terms of real-world security, while large and power-hungry commercial systems have slowed wide-scale adoption. Measurement-device-independent QKD (MDI-QKD) provides a method of sharing secret keys that removes all possible detector side-channel attacks which drastically improves security claims. In this Letter, we experimentally demonstrate a key step required to perform MDI-QKD with scalable integrated devices. We show Hong-Ou-Mandel interference between weak coherent states carved from two independent indium phosphide transmitters at 431 MHz with a visibility of 46.5 +/- 0.8%. This Letter demonstrates the feasibility of using integrated devices to lower a major barrier towards the adoption of QKD in metropolitan networks. (C) 2019 Optical Society of America
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available