Y.-H. Luo et al. Quantum teleportation in high dimensions. Physical Review Letters. Vol. 123, August 16, 2019. doi:10.1103/PhysRevLett.123.070505.
Category: quantum physics – Page 768
Quantum Secure Communication Market Expected to Witness High Growth over the Forecast Period 2019 – 2025 – Financial Newspaper
Global Quantum Secure Communication market analysis mainly introduces the changing market dynamics in terms of covering all details inside analysis and opinion, volume and value market share by players, by regions, by product type, by consumers and their price change details, cost/revenue structure. Additionally, the analysis of Global Quantum Secure Communication offers a detailed breakdown of key market growth drivers and limitation along with impact analysis of the same.
The Quantum Secure Communication market research report provides an in-depth analysis of the business space in question, alongside a brief gist of the industry segmentation. A highly viable evaluation of the current industry scenario has been presented in the study, and the Quantum Secure Communication market size with regards to the remuneration and volume has also been mentioned. The research report, in its entirety, is a basic collection of significant data with reference to the competitive terrain of this industry and the numerous regions where the business space has successfully established its position.
Request a sample Report of Quantum Secure Communication Market at: https://www.marketstudyreport.com/request-a-sample/2075428?u…ium=Deepak
“Qutrit”: Complex quantum teleportation achieved for first time
Researchers from the Austrian Academy of Sciences and the University of Vienna have experimentally demonstrated what was previously only a theoretical possibility. Together with quantum physicists from the University of Science and Technology of China, they have succeeded in teleporting complex high-dimensional quantum states. The research teams report this international first in the journal “Physical Review Letters”.
In their study, the researchers teleported the quantum state of one photon (light particle) to another distant one. Previously, only two-level states (“qubits”) had been transmitted, i.e., information with values “0” or “1”. However, the scientists succeeded in teleporting a three-level state, a so-called “qutrit”. In quantum physics, unlike in classical computer science, “0” and “1” are not an ‘either/or’ – both simultaneously, or anything in between, is also possible. The Austrian-Chinese team has now demonstrated this in practice with a third possibility “2”.
Novel experimental method.
Newly Discovered State of Matter Could Vastly Enhance Computing
A team of physicists claims to have discovered a new state of matter — a breakthrough that could vastly improve traditional as well as quantum computing.
The new state, called “topological superconductivity,” could help to increase storage capabilities in electronic devices and enhance quantum computing.
RELATED: ‘QUTRIT’ EXPERIMENTS SHOW PROGRESS IN QUANTUM TELEPORTATION
A classic quantum theorem may prove there are many parallel universes
By Leah Crane
Some ideas about the quantum world appear to suggest there are many versions of you spread out across many parallel universes. Now, two scientists have formulated a proof that attempts to show this is really true.
The proof involves a fundamental construct in quantum mechanics called Bell’s theorem. This theorem deals with situations where particles interact with each other, become entangled, and then go their separate ways. It is what’s called a “no-go theorem”, one designed to show that some assumption about how the world works is not true.
Quantum teleportation shows up in 3D for the first time
For the first time, Chinese scientists have demonstrated the experiment of transferring quantum information in a 3D state.
Limited in a two-level state for a long time, the study paves the way to teleporting the complete quantum state of a particle, according to an article in American Physical Society a top peer-review journal.
According to Pan Jianwei, coauthor of the study known as the “father of quantum” in China, quantum teleportation is a new communication method to transfer quantum information – a particle’s quantum state in the micro-world.
What You Need To Know First About The Inexplicable World Of Quantum Computing
Down the road
The end game for quantum computing is a fully functional, universal fault-tolerant gate computer. To fulfill its promise, it needs thousands, maybe even millions, of qubits that can run arbitrary quantum algorithms and solve extremely complex problems and simulations.
Before we can build a quantum machine like that, we have a lot of development work to be done. In general terms, we need:
How will quantum computing change the world? | The Economist
The potential for quantum computing to crack other countries’ encrypted networks has captured the attention of national governments. Which of the world’s fundamental challenges could be solved by quantum computing?
Click here to subscribe to The Economist on YouTube: https://econ.st/2xvTKdy
For more from Economist Films visit: http://films.economist.com/
Check out The Economist’s full video catalogue: http://econ.st/20IehQk
Like The Economist on Facebook: https://www.facebook.com/TheEconomist/
Follow The Economist on Twitter: https://twitter.com/theeconomist
Follow us on Instagram: https://www.instagram.com/theeconomist/
Follow us on Medium: https://medium.com/@the_economist
Researchers Have Built The Most Complex Light-Based Quantum Computer Chip Ever
In a world-first, researchers have created a quantum chip that contains four entangled particles of light, known as photons, and is capable of performing actions over hundreds of channels simultaneously.
Or to put that into context, they’ve come closer than ever before to building a chip that’s similar to the ones in our smartphones and computers, but that has the potential to perform exponentially more calculations, and can process data at the speed of light. Sounds good, right?
“This represents an unprecedented level of sophistication in generating entangled photons on a chip,” said co-lead researcher David Moss, from Swinburne University of Technology in Australia.
Newfound Superconductor Material Could Be the ‘Silicon of Quantum Computers’
A potentially useful material for building quantum computers has been unearthed at the National Institute of Standards and Technology (NIST), whose scientists have found a superconductor that could sidestep one of the primary obstacles standing in the way of effective quantum logic circuits.
Newly discovered properties in the compound uranium ditelluride, or UTe2, show that it could prove highly resistant to one of the nemeses of quantum computer development — the difficulty with making such a computer’s memory storage switches, called qubits, function long enough to finish a computation before losing the delicate physical relationship that allows them to operate as a group. This relationship, called quantum coherence, is hard to maintain because of disturbances from the surrounding world.
The compound’s unusual and strong resistance to magnetic fields makes it a rare bird among superconducting (SC) materials, which offer distinct advantages for qubit design, chiefly their resistance to the errors that can easily creep into quantum computation. UTe2’s exceptional behaviors could make it attractive to the nascent quantum computer industry, according to the research team’s Nick Butch.