Quantum Tech

Yale University scientists have reached a milestone in their efforts to extend the durability and dependability of quantum information. For the first time, researchers at Yale have crossed the "break even" point in preserving a bit of quantum information for longer than the lifetime of its constituent parts. They have created a novel system to encode, spot errors, decode, and correct errors in a quantum bit, also known as a "qubit."

Scientists at the Faculty of Physics, University of Warsaw, have successfully applied concepts of classical holography to the world of quantum phenomena. A new measurement technique has enabled them to register the first ever hologram of a single light particle, thereby shedding new light on the foundations of quantum mechanics. Therefore, they have created the first ever hologram of a single light particle.

Materials researchers at North Carolina State University have fine-tuned a technique that enables them to apply precisely controlled silica coatings to quantum dot nanorods in a day - up to 21 times faster than previous methods. In addition to saving time, the advance means the quantum dots are less likely to degrade, preserving their advantageous optical properties.

Past research has shown heterogeneous silicon-germanium nanowires to be better transistors than their pure silicon counterparts. A team from Michigan Technological University has figured out the most likely reason why. The study, published recently in Nano Letters, focuses on the quantum mechanics in a core-shell nanowire structure. Having a better understanding of the underlying physics could improve efficiency in electronic devices that maximiz...

Physicists from the Russian Quantum Center (RQC), MIPT, the Lebedev Physical Institute, and L'Institut d'Optique (Palaiseau, France) have devised a method for creating a special quantum entangled state. This state enables producing a high-precision ruler capable of measuring large distances to an accuracy of billionths of a metre. The results of the study have been published in Nature Communications.

RMIT quantum computing researchers have developed and demonstrated a method capable of efficiently detecting high-dimensional entanglement. Entanglement in quantum physics is the ability of two or more particles to be related to each other in ways which are beyond what is possible in classical physics. Having information on a particle in an entangled ensemble reveals an "unnatural" amount of information on the other particles.

A team of researchers from Google, the University of the Basque Country, the University of California and IKERBASQUE, Basque Foundation for Science has devised a means for combining the two leading ideas for creating a quantum computer in one machine, offering a possible means for learning more about how to create a true quantum computer sometime in the future. They have published the details in the journal Nature.

Scientists can now identify the exact location of a single atom in a silicon crystal, a discovery that is key to greater accuracy in the operation of tomorrow's silicon-based quantum computers. It's now possible to track and see individual phosphorus atoms in a silicon crystal allowing confirmation of quantum computing capability but which also has use in nano detection devices. Quantum computing has the potential for enormous processing power in...

Researchers from the National University of Singapore (NUS) and the University of Strathclyde, UK, have become the first to test in orbit technology for satellite-based quantum network nodes. They have put a compact device carrying components used in quantum communication and computing into orbit. And it works: the team report first data in a paper published in the journal Physical Review Applied.

A method to produce significant amounts of semiconducting nanoparticles for light-emitting displays, sensors, solar panels and biomedical applications has gained momentum with a demonstration by researchers at the Department of Energy's Oak Ridge National Laboratory. While zinc sulfide nanoparticles - a type of quantum dot that is a semiconductor - have many potential applications, high cost and limited availability have been obstacles to their w...