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Detectors inherently capable of resolving photon numbers have undergone a significant development recently, and this is expected to affect multiplexed periodic single-photon sources where such detectors can find their applications. We…

Quantum Physics · Physics 2020-07-29 Ferenc Bodog , Matyas Mechler , Matyas Koniorczyk , Peter Adam

We develop a method for optimizing the structure of general binary-tree multiplexers realized with asymmetric photon routers aiming at improving the performance of spatially multiplexed single-photon sources. Our procedure systematically…

Quantum Physics · Physics 2024-07-25 Matyas Mechler , Peter Adam

We propose two novel types of spatially multiplexed single-photon sources based on incomplete binary-tree multiplexers. The incomplete multiplexers are extensions of complete binary-tree multiplexers, and they contain incomplete branches…

Quantum Physics · Physics 2022-03-02 Peter Adam , Ferenc Bodog , Matyas Mechler

We introduce a theoretical framework which is suitable for the description of all spatial and time-multiplexed periodic single-photon sources realized or proposed thus far. Our model takes into account all possibly relevant loss mechanisms.…

Quantum Physics · Physics 2014-11-26 Peter Adam , Matyas Mechler , Imre Santa , Mátyás Koniorczyk

We consider periodic single-photon sources with combined multiplexing in which the outputs of several time-multiplexed sources are spatially multiplexed. We give a full statistical description of such systems in order to optimize them with…

Quantum Physics · Physics 2016-10-05 Ferenc Bodog , Peter Adam , Matyas Mechler , Imre Santa , Matyas Koniorczyk

Single photon source represent a fundamental building block for optical implementations of quantum information tasks ranging from basic tests of quantum physics to quantum communication and high-resolution quantum measurement. In this paper…

The non-deterministic nature of photon sources is a key limitation for single photon quantum processors. Spatial multiplexing overcomes this by enhancing the heralded single photon yield without enhancing the output noise. Here the…

Current sources of heralded single photons based on nonlinear optics operate in a probabilistic manner. In order to build quantum-enhanced devices based around the use of single photons, compact, turn-key and deterministic sources are…

Quantum Physics · Physics 2014-09-09 Robert J. A. Francis-Jones , Peter J. Mosley

As currently implemented, single-photon sources cannot be made to produce single photons with high probability, while simultaneously suppressing the probability of yielding two or more photons. Because of this, single photon sources cannot…

Quantum Physics · Physics 2015-06-26 A. L. Migdall , D. Branning , S. Castelletto , M. Ware

An on-demand single-photon source is a key requirement for scaling many optical quantum technologies. A promising approach to realize an on-demand single-photon source is to multiplex an array of heralded single-photon sources using an…

Quantum Physics · Physics 2015-05-20 Damien Bonneau , Gabriel J. Mendoza , Jeremy L. O'Brien , Mark G. Thompson

Scalable photonic quantum technologies require highly efficient sources of single photons on demand. Although much progress has been done in the field within the last decade, the requirements impose stringent conditions on the efficiency of…

Efficient generation of single photons is one of the key challenges of building photonic quantum technology, such as quantum computers and long-distance quantum networks. Photon source multiplexing -- where successful pair generation is…

Quantum Physics · Physics 2022-07-07 Jeremy C. Adcock , Davide Bacco , Yunhong Ding

A promising result from optical quantum metrology is the ability to achieve sub-shot-noise performance in transmission or absorption measurements. This is due to the significantly lower uncertainty in light intensity of quantum beams with…

Quantum Physics · Physics 2021-09-01 Agustina G. Magnoni , Laura T. Knoll , Miguel A. Larotonda

The reliable, deterministic production of trustworthy high-quality single photons is a critical component of discrete variable, optical quantum technology. For single-photon based fully error-corrected quantum computing systems, it is…

Quantum Physics · Physics 2024-11-20 Sebastian Brandhofer , Casey R. Myers , Simon J. Devitt , Ilia Polian

In the field of quantum technology, single photons have emerged as a pivotal resource, prompting the development of heralded single photon sources (HSPS) with enhanced generation probability. The majority of such sources are based on…

We demonstrate multiphoton interference using a resource-efficient frequency multiplexing scheme, suitable for quantum information applications that demand multiple indistinguishable and pure single photons. In our source,…

Single-photon sources are at the heart of quantum-optical networks, with their uniquely quantum emission and phenomenon of two-photon interference allowing for the generation and transfer of nonclassical states. Although a few analytical…

Quantum Physics · Physics 2018-02-08 Kevin A. Fischer , Kai Müller , Konstantinos G. Lagoudakis , Jelena Vučković

As typically implemented, single photon sources cannot be made to produce single photons with high probability, while simultaneously suppressing the probability of yielding two or more photons. Because of this, single photon sources cannot…

Quantum Physics · Physics 2009-11-07 A. L. Migdall , D. Branning , S. Castelletto , M. Ware

Readout multiplexing is a promising solution to overcome hardware limitations and data bottlenecks in imaging with single-photon detectors. Conventional multiplexed readout processing creates an upper bound on photon counts at a very fine…

Quantum Physics · Physics 2026-03-12 Shashwath Bharadwaj , Ruangrawee Kitichotkul , Akshay Agarwal , Vivek K Goyal

Single-photon detectors are an essential part of the toolbox of modern quantum optics for implementing quantum technologies and enabling tests of fundamental physics. The low energy of microwave photons, the natural signal path for…

Mesoscale and Nanoscale Physics · Physics 2025-10-10 Lukas Danner , Max Hofheinz , Nicolas Bourlet , Ciprian Padurariu , Joachim Ankerhold , Björn Kubala
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