The Export Administration Regulations (EAR) managed by the Bureau of Industry and Security (BIS) of the U.S. Department of Commerce calls for the maintenance of an Entity List. The list identifies entities that have been […]
We wrote last September about Dell’s first step in quantum computing to test a solution that integrates their Dell EMC PowerEdge R740xd with IBM Qiskit quantum emulator. They have now taken a second step to test […]
Researchers have developed highly efficient, on-chip frequency shifters that can convert light in the gigahertz frequency range. The frequency shifters are easily controlled, using continuous and single-tone microwaves. Click to rate this post! [Total: 0 […]
Last month, we presented three puzzles that seemed ordinary enough but contained a numerical twist. Hidden below the surface was the mysterious transcendental number e. Most familiar as the base of natural logarithms, Euler’s number […]
The ability to precisely control and change properties of a photon, including polarization, position in space, and arrival time, gave rise to a wide range of communication technologies we use today, including the Internet. The […]
Dell Technologies reports that the company partnered with IonQ to test a hybrid classical-quantum platform, according to Dell’s blog post. The platform allows classical and quantum simulation workloads to be executed on-premises, while quantum workloads, […]
Physicists have created a new ultra-thin, two-layer material with quantum properties that normally require rare earth compounds. This material, which is relatively easy to make and does not contain rare earth metals, could provide a […]
Suppose you are trying to transmit a message. Convert each character into bits, and each bit into a signal. Then send it, over copper or fiber or air. Try as you might to be as […]
Quantum 5, 587 (2021). https://doi.org/10.22331/q-2021-11-24-587 We present two new results about exact learning by quantum computers. First, we show how to exactly learn a $k$-Fourier-sparse $n$-bit Boolean function from $O(k^{1.5}(log k)^2)$ uniform quantum examples for […]
Researchers from Basel and Bochum have succeeded in addressing an apparently unattainable energy transition in an artificial atom using laser light. Making use of the so-called radiative Auger process, they were the first team to […]
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