High-dimensional quantum transport enabled by nonlinear detection. In our concept, information is encoded on a coherent source and overlapped with a single photon from an entangled pair in a nonlinear crystal for up-conversion by sum frequency generation, the latter acting as a nonlinear spatial mode detector. The bright source is necessary to achieve the efficiencyContinue reading “‘Teleporting’ Images…”
Category Archives: Cryptography
Bitcoin and Gaia…
“What are the environmental impacts of cryptocurrency?” Written by Paul Kim; edited by Jasmine Suarez Mar 17, 2022, 5:21 PM EDT, Business Insider. Image: Ethereum, the second biggest cryptocurrency on the market, plans on changing to proof of stake mining in the future. Rachel Mendelson/Insider Topics: Applied Physics, Computer Science, Cryptography, Economics, Environment, Star Trek,Continue reading “Bitcoin and Gaia…”
Zero Days…
Image Source: Tech Target Topics: Computer Science, Cryptography, Cybersecurity, Spyware Spyware vendors are exploiting zero days and known vulnerabilities in Android, iOS, and Chrome, sparking an increase in “dangerous hacking tools,” warned Google’s Threat Analysis Group. In a blog post on Wednesday, Clement Lecigne, a security engineer at Google, detailed two recent campaigns that TAGContinue reading “Zero Days…”
QAOA and Privacy…
A quantum computer at IBM’s Thomas J. Watson Research Center. Credit: Connie Zhou for IBM Topics: Computer Science, Cryptography, Cybersecurity, Quantum Computer A team of researchers in China has unveiled a technique that — theoretically — could crack the most commonly used types of digital privacy using a rudimentary quantum computer. The technique worked inContinue reading “QAOA and Privacy…”
City-Sized, Secure Quantum Network…
Topics: Cryptography, Futurism, Internet of Things, Modern Physics, Quantum Computer, Quantum Mechanics Quantum cryptography promises a future in which computers communicate with one another over ultrasecure links using the razzle-dazzle of quantum physics. But scaling up the breakthroughs in research labs to networks with a large number of nodes has proved difficult. Now an international teamContinue reading “City-Sized, Secure Quantum Network…”
Physics and Nano 