News tagged with cryptography

Quantum computer calculates exact energy of molecular hydrogen

In an important first for a promising new technology, scientists have used a quantum computer to calculate the precise energy of molecular hydrogen. This groundbreaking approach to molecular simulations could ...

Physics / Quantum Physics

created Jan 10, 2010 | popularity 4.6 / 5 (31) | comments 7 | with audio podcast

Field experiment on a robust hierarchical metropolitan quantum cryptography network

Key Laboratory of Quantum Information (CAS), University of Science and Technology of China has recently demonstrated a metropolitan Quantum Cryptography Network (QCN) for Government Administration in Wuhu, China. The project ...

Physics / Quantum Physics

created Oct 16, 2009 | popularity 5 / 5 (1) | comments 0

Up-scale: Frequency converter enables ultra-high sensitivity infrared spectrometry

In what may prove to be a major development for scientists in fields ranging from forensics to quantum communications, researchers at the National Institute of Standards and Technology have developed a new, ...

Physics / General Physics

created Aug 26, 2009 | popularity 4.9 / 5 (12) | comments 2

Researchers unite to distribute quantum keys

Researchers from across Europe have united to build the largest quantum key distribution network ever built. The efforts of 41 research and industrial organisations were realised as secure, quantum encrypted information ...

Physics / Quantum Physics

created Jul 02, 2009 | popularity 4.5 / 5 (2) | comments 2

Scientists demonstrate all-fiber quantum logic

A team of physicists and engineers have demonstrated all-fibre quantum logic, where single photons are generated and used to perform the controlled-NOT quantum logic gate in optical fibres with high fidelity.

Physics / Quantum Physics

created May 28, 2009 | popularity 4.3 / 5 (14) | comments 3

Austrian breakthrough in quantum cryptography: Record in the transmission of entangled photon pairs (Update)

Austrian physicists say a breakthrough in next-generation quantum cryptography could allow encrypted messages to be bounced off satellites, the British journal Nature reported Sunday.

Physics / Quantum Physics

created May 03, 2009 | popularity 3.7 / 5 (11) | comments 7

Making quantum cryptography practical

Quantum cryptography, a completely secure means of communication, is much closer to being used practically as researchers from Toshiba and Cambridge University's Cavendish Laboratory have now developed high speed detectors ...

Physics / Optics & Photonics

created Apr 30, 2009 | popularity 4.3 / 5 (3) | comments 1

Scientists demonstrate laser with controlled polarization

Applied scientists at the Harvard School of Engineering and Applied Sciences (SEAS) in collaboration with researchers from Hamamatsu Photonics in Hamamatsu City, Japan, have demonstrated, for the first time, ...

Physics / Optics & Photonics

created Apr 13, 2009 | popularity 3.8 / 5 (16) | comments 3

Electrical engineer cracks code to detect media tampering

(PhysOrg.com) -- An NJIT electrical engineer has cracked the code that will enable researchers around the world to detect tampering with electronic images.

Technology / Computer Sciences

created Apr 01, 2009 | popularity 3.8 / 5 (6) | comments 6

Trading carats for nanometers - and defective diamonds for crystal clear microscopy

(PhysOrg.com) -- Large, perfect diamonds are precious to almost all of us but to some scientists, it is the defects that really matter. This is because defects can form nanoscopic color centers, which play ...

Physics / Optics & Photonics

created Mar 02, 2009 | popularity 4.8 / 5 (5) | comments 0


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