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New experiments in Calgary tested quantum teleportation in actual infrastructure, representing a major step forward for the technology.

Quantum physics is a field that appears to give scientists superpowers. Those who understand the world of extremely small or cold particles can perform amazing feats with them — including teleportation — that appear to bend reality.

The science behind these feats is complicated, and until recently, didn’t exist outside of lab settings. But that’s changing: researchers have begun to implement quantum teleportation in real-world contexts. Being able to do so just might revolutionize modern phone and Internet communications, leading to highly secure, encrypted messaging.

Continue reading “Teleporting Toward a Quantum Internet” »

Los Alamos is the 1st place where QC Internet was launched.

A research team from Los Alamos National Laboratory published a paper in the journal Nature Energy this week that demonstrates an effective method for scaling up quantum dot solar power technology from production models to full-sized windows that could power a building.

“We are developing solar concentrators that will harvest sunlight from building windows and turn it into electricity, using quantum-dot based luminescent solar concentrators,” lead scientist and leader of the Los Alamos Center for Advanced Solar Photophysics (CASP) Victor Klimov said.

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In Brief:

• Normally formation happens in attoseconds and an attosecond is to a second what a second is to about 31.71 billion years.
• Further study of the particle could lead to quantum processors and ultra-fast electronics.

By forcefully embedding two silicon atoms in a diamond matrix, Sandia researchers have demonstrated for the first time on a single chip all the components needed to create a quantum bridge to link “People have already built small quantum computers,” says Sandia researcher Ryan Camacho. “Maybe the first useful one won’t be a single giant quantum computer but a connected cluster of small ones.”

Distributing quantum information on a bridge, or network, could also enable novel forms of quantum sensing, since quantum correlations allow all the atoms in the network to behave as though they were one single atom.

The joint work with Harvard University used a focused ion beam implanter at Sandia’s Ion Beam Laboratory designed for blasting single ions into precise locations on a diamond substrate. Sandia researchers Ed Bielejec, Jose Pacheco and Daniel Perry used implantation to replace one carbon atom of the diamond with the larger silicon atom, which causes the two carbon atoms on either side of the silicon atom to feel crowded enough to flee. That leaves the silicon atom a kind of large landowner, buffered against stray electrical currents by the neighboring non-conducting vacancies.

Leading Australian engineer and physicist, Professor Andrea Morello, was today named inaugural recipient of the Rolf Landauer and Charles H. Bennett Award in Quantum Computing by the prestigious American Physical Society, the world’s leading organisation of physicists.

Morello, a professor in UNSW’s School of Electrical Engineering & Telecommunications and head of the Quantum Spin Control group at the Centre for Quantum Computation and Communication Technology, was awarded the prize “for remarkable achievements in the experimental development of spin qubits in silicon”.

The prize, endowed by the International Business Machines Corp, is named for two of the founding fathers of modern information science, both classical and quantum.

Continue reading “Australian engineer takes out inaugural global prize for quantum computing” »

(Phys.org)—Physicists have implemented the first experimental demonstration of everlasting quantum coherence—the phenomenon that occurs when a quantum system exists in a superposition of two or more states at once. Typically, quantum coherence lasts for only a fraction of a second before decoherence destroys the effect due to interactions between the quantum system and its surrounding environment.

The collaboration of physicists, led by Gerardo Adesso at The University of Nottingham and with members from the UK, Brazil, Italy, and Germany, have published a paper on the demonstration of the extreme resilience of quantum coherence in a recent issue of Physical Review Letters.

“Quantum properties can be exploited for disruptive technologies but are typically very fragile,” Adesso told Phys.org. “Here we report an experiment which shows for the first time that quantum coherence in a large ensemble of nuclear spins can be naturally preserved (‘frozen’) under exposure to strong dephasing noise at room temperature, without external control, and for timescales as long as a second and beyond.”

Continue reading “Forever quantum: physicists demonstrate everlasting quantum coherence” »

Breaks through the 5-nanometer quantum tunneling threshold; may allow for Moore’s law to continue…

The first transistor with a working 1-nanometer (nm) gate has been created by a team led by Lawrence Berkeley National Laboratory (Berkeley Lab) scientists. Until now, a transistor gate size less than 5 nanometers has been considered impossible because of quantum tunneling effects. (One nanometer is the diameter of a glucose molecule.)

Continue reading “Berkeley Lab announces first transistor with a working 1-nanometer gate” »

BT and Toshiba have showcased the UK’s first use of secure quantum communication at the telecoms company’s research and development centre in Ipswich.

The showcase demonstrates the use of quantum cryptography for communications over fibre optic cabling. By exploiting the quantum states of photons, the most visible elementary particles in the electromagnetic spectrum, the cryptographic technique can be used to communicate securely over normal fibre cables.

A sensor that uses infrared laser light and quantum film detects objects up to 20 metres away, helping drones to dodge collisions.