Researchers have developed a new type of light-enhancing optical cavity that is only 200 nanometers tall and 100 nanometers across. Their new nanoscale system represents a step toward brighter single-photon sources, which ...
Optics & Photonics
Dec 21, 2016
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550
Extremely accurate measurements of microwave signals can potentially be used for data encryption based on quantum cryptography and other purposes.
Nanophysics
Oct 31, 2016
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13
Quantum cryptography is considered a fully secure encryption method, but researchers from Linköping University and Stockholm University have discovered that this is not always the case. They found that energy-time entanglement ...
Quantum Physics
Dec 18, 2015
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162
The largest information technology agreement ever signed by Los Alamos National Laboratory brings the potential for truly secure data encryption to the marketplace after nearly 20 years of development at the nation's premier ...
Quantum Physics
Sep 3, 2014
4
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By emitting photons from a quantum dot at the top of a micropyramid, researchers at Linköping University are creating a polarized light source for such things as energy-saving computer screens and wiretap-proof communications.
Nanophysics
Jan 31, 2014
2
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The US National Security Agency is making strides toward building a "quantum computer" that could break nearly any kind of encryption, The Washington Post reported Thursday.
Internet
Jan 3, 2014
18
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Fiber optics has made communication faster than ever, but the next step involves a quantum leap –– literally. In order to improve the security of the transfer of information, scientists are working on how to translate ...
Quantum Physics
Sep 23, 2013
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1
(Phys.org) —Quantum communication systems offer the promise of virtually unbreakable encryption. Unlike classical encryption, which is used to send secure data over networks today and whose security depends on the difficulty ...
Quantum Physics
May 28, 2013
1
0
(Phys.org) —Researchers at the Hebrew University of Jerusalem have succeeded in causing entanglement swapping between photons that never coexisted in time. In their paper published in the journal Physical Review Letters, ...
(Phys.org) —Albert Einstein famously described quantum entanglement as "spooky action at distance"; however, up until now experiments that examine this peculiar aspect of physics have been limited to relatively small distances ...
Quantum Physics
Apr 9, 2013
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