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 […]
Kicking the quantum cybersecurity can down the road my be a potentially devastating delay tactic, a team of cybersecurity experts and quantum information scientists warn. While current quantum computers may not be a threat to […]
QuTech, a Dutch organization that is a collaboration between the TU Delft and TNO, has introduced a web site where users can simulate various aspects of a quantum internet. At this time, the simulations are […]
In recent years, many physicists worldwide have been investigating the behavior of hybrid nanostructures. These are systems that are typically made up of two or more materials. Special attention in this class of structures is […]
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