Spatial Mode Correction of Single Photons Using Machine Learning

Smart quantum technologies for secure communication

Researchers from Louisiana State University have introduced a smart quantum technology for the spatial mode correction of single photons. The team has exploited the self-learning and self-evolving features of artificial neural networks to correct the distorted spatial profile of single photons.

Illustration of a Restricted Boltzmann Machine (RBM) bipartite graph where viviv_i are visible nodes, hjhjh_j are hidden nodes and wijwijw_{ij} are the weights connecting the hidden and visible nodes.

Researchers enhance quantum machine learning algorithms

Researchers at Florida State University found a way to automatically infer parameters used in an important quantum Boltzmann machine algorithm for machine learning applications. The work could help build artificial neural networks that could be used […]

Noise tolerance of photonic entanglement can be significantly enhanced (Credit: Harald Ritsch for IQOQI Vienna)

Enhancement of noise tolerance of photonic entanglement

Quantum measurements are prone to noise, which can enter the system in many ways. For quantum communication, increasing the system’s dimensionality – the number of available encoding levels – can increase its resistance to noise. […]

Fig. 1: Experimental setup. Credit: npj Quantum Information ISSN 2056-6387 (online)

When memory qubits and photons get entangled

Scientists at the University of Bonn have been able for the first time to demonstrate quantum entanglement between a stationary qubit, i.e. a two-state quantum system, and a photon with direct coupling to an optical […]

The figure pictures the simplest example of parity games. Alice (A) flicks a certain number of marbles towards Bob (B), with the aim of learning whether the number of twisted tubes is even or odd. The players need four ordinary classical marbles to complete the task. In contrast, already two quantum marbles would suffice. Credit: © Borivoje Dakić

Playing games with quantum interference

One of the most striking features of quantum mechanics is the superposition principle. This principle can be most easily illustrated via the double-slit experiment, which involves a particle that is sent through a plate pierced […]

Hologram encoding a quvigint (left), such as that photographed during the experiment (right). Image credit: Markus Rambach

Finding quvigints in a Quantum treasure map

Scientists at the ARC Centre of Excellence for Engineered Quantum Systems (EQUS) at The University of Queensland said the team was able to find unknown quantum states more quickly and accurately, using a technique called […]

Artistic impression of the quantum learning concept. Credit: Rolando Barry, University of Vienna

Robots learn faster with Quantum Technology

An experiment at the University of Vienna has showed that quantum technology enables a speed-up in the machine learning using a quantum processor for single photons as a robot. The team has made use of […]

D-Wave logo

D-Wave secures $40M and plans a $120M project

Canadia-based D-Wave Systems has secured $40 million from the Government of Canada to support its quantum computing systems and software. The $40 million in government funding comes in the form of Strategic Innovation Fund (SIF) […]

QBlox product in lab

Qblox unveils next-generation RF Quantum control stacks

Yesterday, Quantum Computer scientists needed to integrate numerous hardware technologies to control and readout qubits effectively. Qblox, a Dutch startup, has just launched their Radio Frequency (RF) line consisting of fully-integrated quantum control stacks providing […]