Breaking the warp barrier for faster-than-light travel

If travel to distant stars within an individual’s lifetime is going to be possible, a means of faster-than-light propulsion will have to be found. To date, even recent research about superluminal (faster-than-light) transport based on Einstein’s theory of general relativity would require vast amounts of hypothetical particles and states of matter that have ‘exotic’ physical properties such as negative energy density….

‘Egg carton’ quantum dot array could lead to ultralow power devices

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. …

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…

The hunt for the quantum collapse

The most famous cat in science is Schrödinger’s cat, the quantum mechanical mammal, which can exist in a superposition, a state that is alive as well as dead. The moment you look at it, one of both options is chosen. Leiden University physicists simulated an experiment to catch this mysterious moment of choice red handed. …

Scientists develop laser system that generates random numbers at ultrafast speeds

An international team of scientists has developed a system that can generate random numbers over a hundred times faster than current technologies, paving the way towards faster, cheaper, and more secure data encryption in today’s digitally connected world. …

Researchers send entangled qubit states through a communication channel for the first time

In a breakthrough for quantum computing, University of Chicago researchers have sent entangled qubit states through a communication cable linking one quantum network node to a second node. …

Quantum shuttle to quantum processor made in Germany launched

The quantum computer race is in full swing. Germany has long been one of the world leaders in basic research. An alliance between Forschungszentrum Jülich and the semiconductor manufacturer Infinion, together with institutes of the Fraunhofer-Gesellschaft (IAF, IPMS) as well as the Leibniz Association (IHP, IKZ), the universities of Regensburg and Konstanz and the quantum start-up HQS, now aims to apply…