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We develop a scheme of generating highly indistinguishable single photons from an active quantum Su-Schrieffer-Heeger chain made from a collection of noisy quantum emitters. Surprisingly, the single photon emission spectrum of the active…

Quantum Physics · Physics 2023-04-03 Yubin Wang , Huawen Xu , Xinyi Deng , Timothy Liew , Sanjib Ghosh , Qihua Xiong

Light with high mutual correlations at different frequencies can be used to create heralded single-photon sources, which may serve as the basic elements of existing quantum cryptography and quantum teleportation schemes. One of the…

Quantum Physics · Physics 2022-08-10 I. V. Panyukov , V. Yu. Shishkov , E. S. Andrianov

The efficient interaction of light with quantum emitters is crucial to most applications in nano and quantum photonics, such as sensing or quantum information processing. Effective excitation and photon extraction are particularly important…

A single quantum emitter can possess a very strong intrinsic nonlinearity, but its overall promise for nonlinear effects is hampered by the challenge of efficient coupling to incident photons. Common nonlinear optical materials, on the…

In recent years the controlled coupling of single photon emitters to propagating surface plasmons has been intensely studied, which is fueled by the prospect of a giant photonic non-linearity on a nano-scaled platform. In this article we…

Quantum Physics · Physics 2016-04-05 Alexander Huck , Ulrik L. Andersen

Single-photon entanglement is a simple form of entanglement that exists between two spatial modes sharing a single photon. Despite its elementary form, it provides a resource as useful as polarization-entangled photons and it can be used…

We create and isolate single-photon emitters with a high brightness approaching $10^5$ counts per second in commercial silicon-on-insulator (SOI) wafers. The emission occurs in the infrared spectral range with a spectrally narrow zero…

Applied Physics · Physics 2020-08-24 M. Hollenbach , Y. Berencén , U. Kentsch , M. Helm , G. V. Astakhov

We study light scattering of single atoms in free space and discuss the results in terms of atom-photon entanglement and which-way information. Using ultracold atoms released from an optical lattice, we realize a Gedanken experiment which…

Quantum Physics · Physics 2024-10-28 Vitaly Fedoseev , Hanzhen Lin , Yu-Kun Lu , Yoo Kyung Lee , Jiahao Lyu , Wolfgang Ketterle

The experimental realization of many-body entangled states is one of the main goals of quantum technology as these states are a key resource for quantum computation and quantum sensing. However, increasing the number of photons in an…

Quantum Physics · Physics 2017-02-08 Y. Pilnyak , N. Aharon , D. Istrati , E. Megidish , A. Retzker , H. S. Eisenberg

Solid-state quantum emitters are excellent sources of on-demand indistinguishable or entangled photons and can host long-lived spin memories, crucial resources for photonic quantum information applications. However, their scalability…

Mesoscale and Nanoscale Physics · Physics 2020-09-07 Zhe-Xian Koong , Guillem Ballesteros-Garcia , Raphaël Proux , Dan Dalacu , Philip J. Poole , Brian D. Gerardot

The advent of single molecule optics has had a profound impact in fields ranging from biophysics to material science, photophysics, and quantum optics. However, all existing room-temperature single molecule methods have been based on…

Mesoscale and Nanoscale Physics · Physics 2010-07-22 Michele Celebrano , Philipp Kukura , Alois Renn , Vahid Sandoghdar

Quantum technologies are the next big revolution in information technologies, computing, communication security, sensing as well as metrology. What do you use to explore all these fascinating applications when you work in Optics? Photons of…

We describe an experiment that generates single photons on demand and measures properties accounted to both particle- and wave-like features of light. The measurement is performed by exploiting data that are sampled simultaneously in a…

Quantum Physics · Physics 2009-11-10 Thomas Aichele , Ulrike Herzog , Matthias Scholz , Oliver Benson

Single-pixel imaging, originally developed in light optics, facilitates fast three-dimensional sample reconstruction, as well as probing with light wavelengths undetectable by conventional multi-pixel detectors. However, the spatial…

Interfacing light with quantum systems is an integral part of quantum technology, with the most essential building block being single-photon emitters. Although various platforms exist, each with its individual strengths, molecular emitters…

Quantum Physics · Physics 2026-03-11 Erik Karlsson Öhman , Daqing Wang , R. Matthias Geilhufe , Christian Schäfer

Solid-state single photon sources are central building blocks in quantum communication networks and on-chip quantum information processing. Atomically thin crystals were established as possible candidates to emit non-classical states of…

Interactions between solid-state quantum emitters and cavities are important for a broad range of applications in quantum communication, linear optical quantum computing, nonlinear photonics, and photonic quantum simulation. These…

Quantum Physics · Physics 2016-11-11 Je-Hyung Kim , Christopher J. K. Richardson , Richard P. Leavitt , Edo Waks

We demonstrate the control of entanglement of a single photon between several spatial modes propagating through a strongly scattering medium. Measurement of the scattering matrix allows the wavefront of the photon to be shaped to compensate…

We propose a novel, to the best of our knowledge, approach to superresolution optical imaging by combining quantum optics and near-field optics. Our concept involves the utilization of single-photon quantum emitters to generate a…

Quantum Physics · Physics 2024-03-26 Aziz Kolkiran

Removing exactly one photon from an arbitrary input pulse is an elementary operation in quantum optics and enables applications in quantum information processing and quantum simulation. Here we demonstrate a deterministic single-photon…