A new path toward sending and receiving information with single photons of light has been discovered by an international team of researchers led by the University of Michigan. …
Tag: quantum
A potential model for a real physical warp drive
A pair of researchers at Applied Physics has created what they describe as the first general model for a warp drive, a model for a space craft that could travel faster than the speed of light, without actually breaking the laws of physics. Alexey Bobrick, and Gianni Martire have written a paper describing their ideas for a warp drive and have…
Researchers investigate ‘imaginary part’ in quantum resource theory
Recently, a research team led by academician Guo Guangcan from CAS Key Laboratory of Quantum Information of the University of Science and Technology of China (USTC) of CAS, has made important progress in quantum information theory. Prof. Li Chuanfeng and Prof. Xiang Guoyong from the team collaborated with Dr. Strelstov from University of Warsaw to investigate the imaginary part of quantum…
Heat-free optical switch would enable optical quantum computing chips
In a potential boost for quantum computing and communication, a European research collaboration reported a new method of controlling and manipulating single photons without generating heat. The solution makes it possible to integrate optical switches and single-photon detectors in a single chip. …
Researchers realize quantum communications milestone using light
Few terms are more ubiquitous in the scientific arena these days than “quantum.” …
Photon-photon polaritons: the intriguing particles that emerge when two photons couple
Scientists at the University of Bath in the UK have found a way to bind together two photons of different colors, paving the way for important advancements in quantum-electrodynamics—the field of science that describes how light and matter interact. In time, the team’s findings are likely to impact developments in optical and quantum communication, and precision measurements of frequency, time and…
A quantum internet is closer to reality, thanks to this switch
When quantum computers become more powerful and widespread, they will need a robust quantum internet to communicate. …
Interesting pattern in cross-sections observed in F + HD → HF + D reaction
A team of researchers from the University of Science and Technology of China, the Chinese Academy of Sciences and the Southern University of Science and Technology, has discovered a thought-provoking pattern in cross-sections observed in an F + HD → HF + D reaction. In their paper published in the journal Science, the group describes their double-pronged approach to learning more…
Through the looking glass: Artificial molecules open door to ultrafast polaritonic devices
Researchers from Skoltech and the University of Cambridge have shown that polaritons, the quirky particles that may end up running the quantum supercomputers of the future, can form structures behaving like molecules—and these “artificial molecules” can potentially be engineered on demand. The paper outlining these results was published in the journal Physical Review B. …
Quantum Computer Solves Decades-Old Problem Three Million Times Faster Than a Classical Computer
ZDNet reports: Scientists from quantum computing company D-Wave have demonstrated that, using a method called quantum annealing, they could simulate some materials up to three million times faster than it would take with corresponding classical methods. Together with researchers from Google, the scientists set out to measure the speed of simulation in one of D-Wave’s quantum annealing processors, and found that…