Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Lecture notes in computer science

Smart Strategies for Single-Photon Detection

João Batista Rosa Silva, Rubens Viana Ramos, Elvio César Giraudo

Published Jan 1, 2004• 0 citations
Publisher
DOI
10.1007/978-3-540-27824-5_44

Related papers

Theory of single-photon detectors employing smart strategies of detection

João Batista Rosa Silva, Rubens Viana Ramos

Single-photon detectors have become more important with the advent of set-ups for optical communication using single-photon pulses, mainly quantum key distribution. The performance of quantum key distribution systems depends strongly on the performance of single-photon detectors. In this paper, aiming to overcome the afterpulsing that limits strongly the maximal transmission rate of quantum key distribution systems, three smart strategies for single-photon detection are discussed using analytical and numerical procedures. The three strategies are: hold-off time conditioned to avalanche presence, termed the Norwegian strategy, using one avalanche photodiode, using two raffled avalanche photodiodes and using two switched avalanche photodiodes. Finally we give examples using these strategies in a quantum key distribution set-up.

Journal of Modern Optics•Nov 20, 2005•0 citations

Single-photon detection surprise

Oliver Graydon

Nature Photonics•Oct 1, 2025•0 citations

Tomography of a displacement photon counter for discrimination of single-rail optical qubits

Shuro Izumi, Jonas Schou Neergaard-Nielsen, Ulrik L. Andersen

We investigate the performance of a detection strategy composed of a displacement operation and a photon counter, which is known as a beneficial tool in optical coherent communications, to the quantum state discrimination of the two superpositions of vacuum and single photon states corresponding to the σx eigenstates in the single-rail encoding of photonic qubits.We experimentally characterize the detection strategy in vacuum-single photon two-dimensional space using quantum detector tomography and evaluate the achievable discrimination error probability from the reconstructed measurement operators.We furthermore derive the minimum error rate obtainable with Gaussian transformations and homodyne detection.Our proof of principle experiment shows that the proposed scheme can achieve a discrimination error surpassing homodyne detection.

•Jan 1, 2018•4 citations

Single-photon detection and its applications

Yan Liang, Heping Zeng

Science China Physics Mechanics and Astronomy•Apr 15, 2014•34 citations

Single-Photon Generation and Detection

Experimental methods in the physical sciences•Jan 1, 2013•68 citations

Tomography of a displacement photon counter for discrimination of single-rail optical qubits

Shuro Izumi, Jonas S Neergaard-Nielsen, Ulrik L Andersen

Abstract We investigate the performance of a detection strategy composed of a displacement operation and a photon counter, which is known as a beneficial tool in optical coherent communications, to the quantum state discrimination of the two superpositions of vacuum and single photon states corresponding to the σ ˆ x eigenstates in the single-rail encoding of photonic qubits. We experimentally characterize the detection strategy in vacuum-single photon two-dimensional space using quantum detector tomography and evaluate the achievable discrimination error probability from the reconstructed measurement operators. We furthermore derive the minimum error rate obtainable with Gaussian transformations and homodyne detection. Our proof-of-principle experiment shows that the proposed scheme can achieve a discrimination error surpassing homodyne detection.

arXiv:1711.07704•Journal of Physics B Atomic Molecular and Optical Physics•Mar 12, 2018•8 citations
Single-photon detectors have become more important with the advent of set-ups for optical communication using single-photon pulses, mainly quantum key distribution. The performance of quantum key distribution systems depends strongly on the performance of single-photon detectors. In this paper, aiming to overcome the afterpulsing that limits strongly the maximal transmission rate of quantum key distribution systems, three smart strategies for single-photon detection are discussed using analytical and numerical procedures. The three strategies are: hold-off time conditioned to avalanche presence, termed the Norwegian strategy, using one avalanche photodiode, using two raffled avalanche photodiodes and using two switched avalanche photodiodes. Finally we give examples using these strategies in a quantum key distribution set-up.
We investigate the performance of a detection strategy composed of a displacement operation and a photon counter, which is known as a beneficial tool in optical coherent communications, to the quantum state discrimination of the two superpositions of vacuum and single photon states corresponding to the σx eigenstates in the single-rail encoding of photonic qubits.We experimentally characterize the detection strategy in vacuum-single photon two-dimensional space using quantum detector tomography and evaluate the achievable discrimination error probability from the reconstructed measurement operators.We furthermore derive the minimum error rate obtainable with Gaussian transformations and homodyne detection.Our proof of principle experiment shows that the proposed scheme can achieve a discrimination error surpassing homodyne detection.
Abstract We investigate the performance of a detection strategy composed of a displacement operation and a photon counter, which is known as a beneficial tool in optical coherent communications, to the quantum state discrimination of the two superpositions of vacuum and single photon states corresponding to the σ ˆ x eigenstates in the single-rail encoding of photonic qubits. We experimentally characterize the detection strategy in vacuum-single photon two-dimensional space using quantum detector tomography and evaluate the achievable discrimination error probability from the reconstructed measurement operators. We furthermore derive the minimum error rate obtainable with Gaussian transformations and homodyne detection. Our proof-of-principle experiment shows that the proposed scheme can achieve a discrimination error surpassing homodyne detection.