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Title: Google and IBM Believe First Workable Quantum Computer is in Sight
Link: https://tech.slashdot.org/story/25/08/12/2048...
IBM and Google report they will build industrial-scale quantum computers
containing one million or more qubits by 2030, following IBM's June
publication of a quantum computer blueprint addressing previous design gaps
and Google's late-2023 breakthrough in scaling error correction. Current
experimental systems contain fewer than 200 qubits. IBM encountered crosstalk
interference when scaling its Condor chip to 433 qubits and subsequently
adopted low-density parity-check code requiring 90% fewer qubits than
Google's surface code method, though this requires longer connections between
distant qubits. Google plans to reduce component costs tenfold to achieve its
$1 billion target price for a full-scale machine. Amazon Web Services quantum
hardware executive Oskar Painter told FT he estimates useful quantum
computers remain 15-30 years away, citing engineering challenges in scaling
despite resolved fundamental physics problems.
Read more of this story at Slashdot.
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