Many researchers believe that quantum computers will complement rather than replace our conventional technologies. Some researchers have expressed skepticism that scalable quantum computers could ever be built, typically because of the issue of maintaining coherence at large scales, but also for other reasons. As described by the threshold theorem, if the error rate is small enough, it is thought to be possible to use quantum error correction to suppress errors and decoherence. Quantum computer startup first to break 1,000-qubit milestone – New Atlas Quantum computer startup first to break 1,000-qubit milestone. Posted: Mon, 30 Oct 2023 05:59:34 GMT [source] Better… Read More

We demonstrate a Josephson parametric amplifier design with a band-pass impedance matching network based on a third-order Chebyshev prototype. We measured eight amplifiers operating at 4.6~GHz that exhibit gains of 20~dB with less than 1~dB gain ripple and up to 500~MHz bandwidth. The amplifiers further achieve high input saturation powers around $-93$~dBm based on the use of rf-SQUID arrays as… We we need to pass each qubit separately through a Hadamard gate, then take their tensor product. Today, many firms attempt to make genuine quantum hardware available to thousands of developers, a tool that scientists only began to conceive three… Read More