Quantum Tech

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Quantum effect modifies direction of light waves

Quantum effect modifies direction of light waves
A light wave sent through empty space always oscillates in the same direction. However, certain materials can be used to rotate the direction in which the light is oscillating when placed in a magnetic field. This is known as a 'magneto-optical' effect. After much speculation spanning a long period of time, one variant of this type of effect has now been demonstrated at TU Wien for the first time.
25th May 2017

Quantum simulator characterises quantum systems

Quantum simulator characterises quantum systems
What happened right after the beginning of the universe? How can we understand the structure of quantum materials? How does the Higgs-Mechanism work? Such fundamental questions can only be answered using quantum field theories. These theories do not describe particles independently from each other; all particles are seen as a collective field, permeating the whole universe.
18th May 2017

Quantum Communication: how to avoid detrimental noise?

Quantum Communication: how to avoid detrimental noise?
Scientists have been working intensely on developing methods for quantum information transfer. This would enable tap-proof data transfer or, one day, even the linking of quantum computers. Quantum information transfer requires reliable information transfer from one quantum system to the other, which is extremely difficult to achieve. Independently, two research teams – one at the University of Innsbruck and the other at TU Wien - have now developed a new quantum communication protocol.
29th March 2017


Quantum physics offers insight into music expressivity

Quantum physics offers insight into music expressivity
Scientists at Queen Mary University of London (QMUL) are bringing us closer to understanding the musical experience through a novel approach to analysing a common musical effect known as vibrato. Vibrato is the up-down oscillation in pitch introduced during instrumental or vocal performance, intended to add expressivity and to facilitate sound projection, and commonly used in opera.
16th March 2017

Commercial quantum-computing service is a world first

Commercial quantum-computing service is a world first
IBM has announced its plans to begin offering the world's first commercial universal quantum-computing service—called IBM Q, the system will be made available to those who wish to use it for a fee sometime later this year. The system will build on IBM's Quantum Experience, a software development platform for programmers and developers interested in designing and building actual quantum-based applications.
6th March 2017

Nano-trampoline probes quantum behaviour

Nano-trampoline probes quantum behaviour
A research group from Bar-Ilan University, in collaboration with French colleagues at CNRS Grenoble, has developed a unique experiment to detect quantum events in ultra-thin films. This novel research, to be published in the scientific journal Nature Communications, enhances the understanding of basic phenomena that occur in nano-sized systems close to absolute zero temperature.
22nd February 2017

Will androids dream of quantum sheep?

Will androids dream of quantum sheep?
Quantum replicants of responsive systems can be more efficient than classical models, say researchers from the Centre for Quantum Technologies in Singapore, because classical models have to store more past information than is necessary to simulate the future. They have published their findings in npj Quantum Information. The word 'replicant' evokes thoughts of a sci-fi world where society has replaced common creatures with artificial machines that replicate their behaviour.
13th February 2017

Fast track control accelerates switching of quantum bits

Fast track control accelerates switching of quantum bits
An international collaboration between physicists at the University of Chicago, Argonne National Laboratory, McGill University, and the University of Konstanz recently demonstrated a framework for faster control of a quantum bit. First published online in Nature Physics, their experiments on a single electron in a diamond chip could create quantum devices that are less prone to errors when operated at high speeds.
16th December 2016

Extending the lifetime of quantum circuits

Extending the lifetime of quantum circuits
An international team of scientists has succeeded in making further improvements to the lifetime of superconducting quantum circuits. An important prerequisite for the realisation of high-performance quantum computers is that the stored data should remain intact for as long as possible. The researchers, including Jülich physicist Dr. Gianluigi Catelani, have developed and tested a technique that removes unpaired electrons from the circuits. These are known to shorten the qubit lifetime.
9th December 2016

Single photons can be reliably imprinted with quantum information

Single photons can be reliably imprinted with quantum information
Physicists at the University of Bath have developed a technique to more reliably produce single photons that can be imprinted with quantum information. The invention will benefit a variety of processes which rely on photons to carry quantum information, such as quantum computing, secure quantum communication and precision measurements at low light levels. Photons, particles of light, can be imprinted with information to be used for things like carrying out calculations and transmitting messages.
25th November 2016


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