Entanglement-based quantum communication secured by nonlocal dispersion cancellation
Name
PhysRevA.90.062331.pdf
Size
902.91 KB
Format
Adobe PDF
Checksum (MD5)
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Author(s)
Lee, Catherine
Zhang, Zheshen
Steinbrecher, Gregory R.
Zhou, Hongchao
Mower, Jacob
Zhong, Tian
Wang, Ligong
Hu, Xiaolong
Horansky, Robert D.
Verma, Varun B.
Date Issued
December 2014
Journal
Physical Review A
Publisher
American Physical Society
Citation
Lee, Catherine, et al. "Entanglement-based quantum communication secured by nonlocal dispersion cancellation." Phys. Rev. A 90, 062331 (December 2014). © 2014 American Physical Society
Version
Final published version
Abstract
Quantum key distribution (QKD) enables participants to exchange secret information over long distances with unconditional security. However, the performance of today's QKD systems is subject to hardware limitations, such as those of available nonclassical-light sources and single-photon detectors. By encoding photons in high-dimensional states, the rate of generating secure information under these technical constraints can be maximized. Here, we demonstrate a complete time-energy entanglement-based QKD system with proven security against the broad class of arbitrary collective attacks. The security of the system is based on nonlocal dispersion cancellation between two time-energy entangled photons. This resource-efficient QKD system is implemented at telecommunications wavelength, is suitable for optical fiber and free-space links, and is compatible with wavelength-division multiplexing.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Massachusetts Institute of Technology. Research Laboratory of Electronics
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1103/PhysRevA.90.062331
