An international team of scientists has proven, for the first time, the security of so-called device-independent quantum cryptography in a regime that is attainable with state-of-the-art quantum technology, thus paving the ...
Quantum Physics
Feb 1, 2018
8
60
On December 26, 2017, J. Pace, G. Woltman, S. Kurowski, A. Blosser, and their co-authors announced the discovery of a new prime number: 2⁷⁷²³²⁹¹⁷-1. It's an excellent opportunity to take a small tour through the ...
Mathematics
Jan 31, 2018
1
152
Data travels through thousands of miles of fiber optic cables underneath the world's oceans—via pulses of light. And according to experts, the data in these cables is at great risk of being intercepted. However, a newly ...
Optics & Photonics
Jan 11, 2018
0
306
(Phys.org)—In quantum mechanics, it's impossible to precisely and simultaneously measure the complementary properties (such as the position and momentum) of a quantum state. Now in a new study, physicists have cloned quantum ...
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 ...
Quantum Physics
Jul 11, 2017
0
29
Researchers working in Singapore and the United States have discovered that all entangled states of two particles have a classical 'fingerprint'. This breakthrough could help engineers guard against errors and devices that ...
Quantum Physics
May 30, 2017
0
1383
The Tohoku University research group of Professor Keiichi Edamatsu and Postdoctoral fellow Naofumi Abe has demonstrated dynamically and statically unpolarized single-photon generation using diamond. This result is expected ...
Quantum Physics
May 8, 2017
0
33
Members of the Faculty of Physics at the Lomonosov Moscow State University have elaborated a new technique for creating entangled photon states. They have described their research in an article published in the journal Physical ...
Quantum Physics
Feb 15, 2017
1
337
Leiden physicists have manipulated light with large artificial atoms, so-called quantum dots. Before, this has only been accomplished with actual atoms. It is an important step toward light-based quantum technology. The study ...
Quantum Physics
Aug 30, 2016
0
70
A new method of implementing an 'unbreakable' quantum cryptographic system is able to transmit information at rates more than ten times faster than previous attempts.
Optics & Photonics
Apr 5, 2016
1
1557
