Search results for quantum computer fiber optic

Optics & Photonics Aug 24, 2017

High-dimensional quantum encryption performed in real-world city conditions for first time

For the first time, researchers have sent a quantum-secured message containing more than one bit of information per photon through the air above a city. The demonstration showed that it could one day be practical to use high-capacity, ...

Optics & Photonics Jul 28, 2017

Optical lens can transfer digital information without loss

(Phys.org)—Researchers have designed an optical lens that exhibits two properties that so far have not been demonstrated together: self-focusing and an optical effect called the Talbot effect that creates repeating patterns ...

Quantum Physics Jul 13, 2017

Atomic cousins team up in early quantum networking node

Large-scale quantum computers, which are an active pursuit of many university labs and tech giants, remain years away. But that hasn't stopped some scientists from thinking ahead, to a time when quantum computers might be ...

Quantum Physics Jul 11, 2017

Physicists transmit data via Earth-to-space quantum entanglement

(Phys.org)—Two teams of researchers in China have advanced the distance that entangled particles can be used to send information, including encryption keys. In their papers, both uploaded to the arXiv preprint sever, the ...

Quantum Physics Jul 11, 2017

World's first demonstration of space quantum communication using a microsatellite

NICT developed the world's smallest and lightest quantum communication transmitter (SOTA) onboard the microsatellite SOCRATES. We succeeded in the demonstration of the first quantum communication experiment from space, receiving ...

Superconductivity Jun 26, 2017

Tiny magnetic tremors unlock exotic superconductivity

Deep within solids, individual electrons zip around on a nanoscale highway paved with atoms. For the most part, these electrons avoid one another, kept in separate lanes by their mutual repulsion. But vibrations in the atomic ...

Quantum Physics Jun 23, 2017

Atomic imperfections move quantum communication network closer to reality

An international team led by the University of Chicago's Institute for Molecular Engineering has discovered how to manipulate a weird quantum interface between light and matter in silicon carbide along wavelengths used in ...

Engineering Jun 21, 2017

Bug-proof communication with entangled photons

Due to the rapidly growing processing power of computers, conventional encryption of data is becoming increasingly insecure. One solution is coding with entangled photons. Fraunhofer researchers are developing a quantum coding ...

Quantum Physics Jun 15, 2017

Researchers discover shortcut to satellite-based quantum encryption network

In a new study, researchers demonstrate ground-based measurements of quantum states sent by a laser aboard a satellite 38,000 kilometers above Earth. This is the first time that quantum states have been measured so carefully ...

Nanomaterials Jun 9, 2017

Graphene specimen support technique for low voltage STEM imaging

Developing new scientific devices pushing the limits of what we can observe and measure does not occur overnight. There are typically baby steps involved, small and continuous improvements to counter the numerous technical ...

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