Quick Navigation

Overview Topics Abstract Importance Paper Tools References Reactions Discussion Publication

Topics

Quantum Cryptography Security

Equivalence of space and time-bins in DPS-QKD

arXiv
Authors: Gautam Shaw, Shyam Sridharan, Shashank Ranu, Foram Shingala, Prabha Mandayam, Anil Prabhakar

Year

2020

Paper ID

21624

Status

Preprint

Abstract Read

~2 min

Abstract Words

97

Citations

N/A

Abstract

Key generation efficiency, and security, in DPS-QKD improve with an increase in the number of path delays or time-bin superpositions. We demonstrate the implementation of super-position states using time-bins, and establish an equivalence with path-based superposition, thus yielding a simpler implementation of higher-order superposition states for differential phase-shift quantum key distribution (DPS-QKD). We set up DPS-QKD, over 105 km of single mode optical fiber, with a quantum bit error rate of less than 15% at a secure key rate of 2 kbps. With temporal guard bands, the QBER reduced to less than 10%, but with a 20% reduction in the key rate.

Why This Paper Matters

  • This paper contributes to the Quantum Cryptography & Security research area in the Quantum Articles archive.
  • It adds a 2020 reference point for readers tracking recent quantum research.
  • Key generation efficiency, and security, in DPS-QKD improve with an increase in the number of path delays or time-bin superpositions.

Paper Tools

Become a member to use research tools

Sign in to open papers, visit source links, share, cite, compare, copy DOI links, request category corrections, and build your reading list.

Become a member Sign in
Show Paper arXiv Publisher Share Cite This Paper Copy URL Compare Copy DOI Add to Reading List Category Correction Request

References & Citation Signals

[1] DOI https://doi.org/arXiv:2008.03083 [2] arXiv https://arxiv.org/abs/2008.03083 [3] Publisher https://arxiv.org/abs/2008.03083

Local Citation Graph (Related-Paper Links)

Current Paper #21624

External citation index: OpenAlex citation signal

Community Reactions

Quick sentiment from readers on this paper.

Score: 0
Likes: 0 Dislikes: 0

Sign in to react to this paper.

Discussion & Reviews (Moderated)

Average Rating: 0.0 / 5 (0 ratings)

No written reviews yet.