Related Experiment Video
Updated: Sep 29, 2025
07:56
A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
Published on: September 5, 2019
8.6K
Coherence in cooperative photon emission from indistinguishable quantum emitters
Zhe Xian Koong1, Moritz Cygorek1, Eleanor Scerri1
1SUPA, Institute of Photonics and Quantum Sciences, Heriot-Watt University, Edinburgh EH14 4AS, UK.
Science Advances
|March 18, 2022
Summary
Researchers explored how coherence influences cooperative emission in indistinguishable solid-state emitters. They observed unique photon bunching, paving the way for advanced quantum photonic networks.
Area of Science:
- Quantum Optics
- Solid-State Physics
- Quantum Information Science
Background:
- Photon-mediated interactions are crucial for quantum phenomena.
- Cooperative emission in quantum systems is vital for applications.
- Understanding emitter indistinguishability is key to controlling quantum correlations.
Purpose of the Study:
- To investigate the role of coherence in cooperative emission between distant, indistinguishable solid-state emitters.
- To characterize emitter indistinguishability and dephasing using intensity correlation experiments.
- To explore the potential for coherent control of quantum correlations in multi-emitter systems.
Main Methods:
- Utilizing intensity correlation experiments to observe photon bunching at zero delay.
- Performing Hong-Ou-Mandel-type interference measurements.
- Employing quantum optics techniques to probe matter qubits.
Main Results:
- Observed "bunching" at zero delay, a signature of cooperative emission.
- Characterized emitter indistinguishability and dephasing.
- Demonstrated that indistinguishable emitters exhibit photon statistics similar to a weak coherent state.
Conclusions:
- Coherence plays a critical role in cooperative emission phenomena.
- Techniques for controlling and characterizing cooperative behavior between matter qubits have been established.
- This work is a significant step towards building large-scale quantum photonic networks.
Related Concept Videos
01:10Dual Nature of Electromagnetic (EM) Radiation
2.5K
Electromagnetic (EM) radiation consists of electric and magnetic field components oscillating in planes perpendicular to each other and mutually perpendicular to radiation propagation through space. EM radiation can be classified as a wave, characterized by the properties of waves such as wavelength (denoted as λ) and frequency (represented by ν).
Wavelength is the distance between two consecutive peaks (the highest point) or troughs (the lowest point) in the wave. Frequency is the...
Wavelength is the distance between two consecutive peaks (the highest point) or troughs (the lowest point) in the wave. Frequency is the...
2.5K
02:32The de Broglie Wavelength
28.3K
In the macroscopic world, objects that are large enough to be seen by the naked eye follow the rules of classical physics. A billiard ball moving on a table will behave like a particle; it will continue traveling in a straight line unless it collides with another ball, or it is acted on by some other force, such as friction. The ball has a well-defined position and velocity or well-defined momentum, p = mv, which is defined by mass m and velocity v at any given moment. This is the typical...
28.3K
01:12Interaction of EM Radiation with Matter: Spectroscopy
2.1K
Electromagnetic (EM) radiation can be considered an oscillating electric and magnetic field propagating through a medium that can interact with matter in its path. The electric field in the radiation can interact with electrical charges in the atoms or molecules in the matter. On the other hand, the magnetic field can interact with the magnetic field in the atomic nucleus. The study of the interaction between electromagnetic radiation and matter is termed spectroscopy. Spectroscopy is the study...
2.1K
01:30Atomic Emission Spectroscopy: Interference
305
In atomic emission spectroscopy (AES), high-temperature atomizers excite a broad range of elements and molecules that generate complex emissions from sources such as oxides, hydroxides, and flame combustion products in the flame or plasma. Several strategies can be employed to minimize spectral interferences caused by overlapping emission lines or bands. These include increasing instrument resolution, choosing alternative emission lines, optimally placing the detector in low-background regions,...
305
02:45The Quantum-Mechanical Model of an Atom
49.9K
Shortly after de Broglie published his ideas that the electron in a hydrogen atom could be better thought of as being a circular standing wave instead of a particle moving in quantized circular orbits, Erwin Schrödinger extended de Broglie’s work by deriving what is now known as the Schrödinger equation. When Schrödinger applied his equation to hydrogen-like atoms, he was able to reproduce Bohr’s expression for the energy and, thus, the Rydberg formula governing hydrogen spectra.
49.9K
02:39Emission Spectra
67.8K
When solids, liquids, or condensed gases are heated sufficiently, they radiate some of the excess energy as light. Photons produced in this manner have a range of energies, and thereby produce a continuous spectrum in which an unbroken series of wavelengths is present.
67.8K