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Willow follows the release of Foxtail in 2017, Bristlecone in 2018, and Sycamore in 2019. Willow has twice as many qubits as Sycamore [3] and improves upon T1 coherence time from Sycamore's 20 microseconds to 100 microseconds. [1] Willow's 105 qubits have an average connectivity of 3.47. [1]
This list contains quantum processors, also known as quantum processing units (QPUs).Some devices listed below have only been announced at press conferences so far, with no actual demonstrations or scientific publications characterizing the performance.
In 2019, IBM challenged Google‘s claim that Google‘s quantum chip solved a problem that would take a classical computer 10,000 years, saying the problem could be solved in two-and-a-half days ...
Google has unveiled its new chip, Willow, which outperforms current computer benchmarks. Google says the chip solves a 30-year hurdle and advances quantum computing for commercial uses.
Google reporting that, "Willow performed a standard benchmark computation in under five minutes that would take one of today's fastest supercomputers, 10 septillion, that is 10 to the 25 years ...
That these codes allow indeed for quantum computations of arbitrary length is the content of the quantum threshold theorem, found by Michael Ben-Or and Dorit Aharonov, which asserts that you can correct for all errors if you concatenate quantum codes such as the CSS codes—i.e. re-encode each logical qubit by the same code again, and so on, on ...
Google says its new state-of-the-art chip, called Willow, can perform computations that would take regular computers longer than the age of the universe to execute.
That's where Google's Willow chip has made a significant breakthrough. With the Willow chip, the more qubits Google adds, the fewer errors the system creates. The Willow chip reduces errors ...