---
title: "A New Quantum Age: Scientists Now Have a Reliable Way to Create Single Photons"
description: "Physicists at the University of Bath have developed a technique to more reliably produce single photons that can be imprinted with quantum information. The innovation will benefit a variety of processes which rely on photons to carry quantum information such as quantum computing."
date: "2016-11-29"
modified: "2016-11-29"
authors:
  - name: "Jelor Gallego"
    link: "https://futurism.com/authors/jelor-gallego"
url: "https://futurism.com/a-new-quantum-age-scientists-now-have-a-reliable-way-to-create-single-photons"
categories:
  - "Physics"
  - "Science & Energy"
tags:
  - "Photons"
  - "quantum communication"
  - "quantum physics"
---

# A New Quantum Age: Scientists Now Have a Reliable Way to Create Single Photons

![](<https://futurism.com/wp-content/uploads/2016/11/More-reliable-way-to-produce-single-photons.jpg>)
*\<em\>Image: University of Bath\</em\>*

Quantum physics experiments have always been limited by how efficiently researchers can create necessary minute particles called photons. Now, [new research](<http://m.phys.org/news/2016-11-reliable-photons.html>) from the [Centre for Photonics and Photonic Materials](<http://www.bath.ac.uk/research/centres/cppm/>) shows a new, more reliable, method for creating single photons.

In a paper [published in ](<https://www.osapublishing.org/optica/fulltext.cfm?uri=optica-3-11-1270&id=353437>)*[Optica](<https://www.osapublishing.org/optica/fulltext.cfm?uri=optica-3-11-1270&id=353437>)*, the researchers detail how they improved on the current method by multiplexing. They combined several single photon sources together using optical switches, with the use of fiber optics. The resulting device not only makes generating [single photons](<http://phys.org/tags/single+photons/>) more reliable but also allows control of properties of the photons created, including their color.

Photons, one of the bedrocks of quantum experiments, can carry information and transmit messages. In quantum entanglement, two photons become twins, each changing quantum state when the other does.

https://www.youtube.com/watch?v=tafGL02EUOA

That's why photons have been central to fields like quantum communication and quantum information processing. Entanglement allows for quantum information transfer even with [several kilometers](<https://futurism.com/a-new-400k-distance-record-set-in-quantum-cryptography>) of distance. It also plays a role in [quantum cryptography ](<http://www.popsci.com/what-is-quantum-cryptography>)since the mere act of measuring one of the entangled photons changes its properties.

The new innovation will benefit a variety of processes which rely on photons to carry quantum information. These include [quantum computing](<https://futurism.com/category/science-news>) and secure quantum communication.