Researchers at the University of Rochester and their collaborators have developed a way to transfer 2.05 bits per photon by using "twisted light." This remarkable achievement is possible because the researchers used the orbital ...
Quantum Physics
Mar 20, 2015
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In quantum optics, generating entangled and spatially separated photon pairs (e.g. for quantum cryptography) is already a reality. So far, it has, however, not been possible to demonstrate an analogous generation and spatial ...
Nanophysics
Dec 4, 2014
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Neither quantum computers nor quantum cryptography will become prevalent technologies without memory systems able to manipulate quantum information easily and effectively. The Faculty of Physics at the University of Warsaw ...
Optics & Photonics
Nov 26, 2014
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Duke University researchers have made fluorescent molecules emit photons of light 1,000 times faster than normal—setting a speed record and making an important step toward realizing superfast light emitting diodes (LEDs) ...
Optics & Photonics
Oct 12, 2014
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Quantum photonics research could change the way we communicate, compute, and measure phenomena on the smallest scales possible. To probe these processes and design new technology that operates with single-photon and single-electron ...
Quantum Physics
Sep 10, 2014
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New prospects for secure data traffic: Flashes of light in particularly sensitive quantum states can be transmitted through the atmosphere.
Quantum Physics
Sep 9, 2014
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While carrying out her master thesis on computer science, Ramasany Gowthami participated in the creation of an Android app by means of which users get together to crack a modern cryptographic code.
Computer Sciences
Aug 25, 2014
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Cryptographers in China have have developed a new type of cryptography that can better resist so-called offline "dictionary attacks", denial of service (DoS) hacks, and cracks involving eavesdroppers. Their approach, reported ...
Computer Sciences
Aug 5, 2014
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(Phys.org) —A team of researchers working at the University of Padua in Italy has bounced polarized photons off of four in-flight satellites to show that quantum communications between such satellites and ground based stations ...
Quantum cryptography is said to be uncrackable. It will stay safe, but only if true randomness, the generation and use of intrinsically random numbers, can be achieved.
Quantum Physics
May 22, 2014
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