That quantum mechanics is a successful theory is not in dispute. It makes astonishingly accurate predictions about the nature of the world at microscopic scales. What has been in dispute for nearly a century is just what it’s telling us … Read more
Peter Shor – 8.370/18.435 Lecture Notes 2022 Lecture Notes for 8.370/18.435 Quantum Computation from Fall 2022 Peter Shor Contact information My Home Page Lecture Notes Here are the 2022 Lecture notes. I never got around to writing the notes for … Read more
For computer scientists, solving problems is a bit like mountaineering. First they must choose a problem to solve — akin to identifying a peak to climb — and then they must develop a strategy to solve it. Classical and quantum … Read more
Special Feature March 7, 2025• Physics 18, 53 In 1964, Bell showed that quantum physics predicts correlations that violate certain inequalities. The work implied that quantum mechanics is not compatible with locality, even if there were “hidden variables” not accounted … Read more
Two years ago, IBM® set an ambitious challenge for the quantum computing community: Develop quantum algorithms incorporating circuits with 100 qubits and gate depths of 100, while IBM would build a quantum computer capable of returning accurate values for those … Read more
The other night I spoke at a quantum computing event and was asked—for the hundredth time? the thousandth?—whether I agreed that the quantum algorithm called QAOA was poised revolutionize industries by finding better solutions to NP-hard optimization problems. I replied … Read more
Researchers from Delft University of Technology in The Netherlands have been able to initiate a controlled movement in the very heart of an atom. They caused the atomic nucleus to interact with one of the electrons in the outermost shells … Read more
08 Aug 2024 5 min read Margo Anderson is senior associate editor and telecommunications editor at IEEE Spectrum. Harald Ritsch/Science Source While the technology world awaits NIST’s latest “post-quantum” cryptography standards this summer, a parallel effort is underway to also … Read more
In 2015, the U.S. Naval Academy decided that its graduates needed to return to the past and learn how to navigate using the stars. Nine years prior, it had dropped celestial navigation from its requirements because GPS was so accurate … Read more
By Opal Wright You might be hearing a lot about post-quantum (PQ) cryptography lately, and it’s easy to wonder why it’s such a big deal when nobody has actually seen a quantum computer. But even if a quantum computer is … Read more