Quantum cryptography
A new research article outlines another aspect of Quantum Cryptography
In “No Signaling and quantum key distribution”, a new paper published in Physical Review Letters 95 (010503 – 2005), Barrett, Hardy and Kent give the first example of a way of implementing quantum cryptography which is provably secure – even if quantum theory is incorrect, so long as a successor theory shares with quantum theory the features which make faster-than-light signaling impossible. The scheme can be implemented by two parties (Alice and Bob) who know quantum theory but know nothing about the precise form of any successor theory, and is secure against a “post-quantum” eavesdropper, Eve, even if she knows the successor theory and has arbitrary post-quantum technology available to her.
Media Contact
More Information:
http://www.perimeterinstitute.caAll latest news from the category: Physics and Astronomy
This area deals with the fundamental laws and building blocks of nature and how they interact, the properties and the behavior of matter, and research into space and time and their structures.
innovations-report provides in-depth reports and articles on subjects such as astrophysics, laser technologies, nuclear, quantum, particle and solid-state physics, nanotechnologies, planetary research and findings (Mars, Venus) and developments related to the Hubble Telescope.
Newest articles
Bringing bio-inspired robots to life
Nebraska researcher Eric Markvicka gets NSF CAREER Award to pursue manufacture of novel materials for soft robotics and stretchable electronics. Engineers are increasingly eager to develop robots that mimic the…
Bella moths use poison to attract mates
Scientists are closer to finding out how. Pyrrolizidine alkaloids are as bitter and toxic as they are hard to pronounce. They’re produced by several different types of plants and are…
AI tool creates ‘synthetic’ images of cells
…for enhanced microscopy analysis. Observing individual cells through microscopes can reveal a range of important cell biological phenomena that frequently play a role in human diseases, but the process of…
