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Quantum computers: Why do they need their own software?
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Quantum computers: Why do they need their own software?: Europe is working on quantum computers. They will one day push the boundaries of what is computable ...
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Quantum Computers Can Get Colder Than Deep Space — Here's How They Stay Running: Quantum computers are kept at temperatures near absolute zero to keep heat from ...
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A quantum computing feat brings the ‘megaquops’ era a step closer: Error correction creates qubits that glitch only 5 out of a million times ...
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Google showcases way to fix quantum computer errors more efficiently: Error-proofing the most important operations performed on a quantum computer has so far ...
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Silicon qubits surpass 99.99% gate fidelity while operating three at once: Silicon spin qubits are a promising platform for building scalable quantum computers ...
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Google’s quantum Willow chip may be able to grow ‘magic states’: The work could help improve quantum computers’ accuracy in complex calculations
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Quantum computers: How Google is following the Munich-based startup Planqc: Planqc is building a new generation of computers just outside Munich ...
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A 98-qubit trapped-ion quantum computer with all-to-all connectivity: Quantum computers require both high-fidelity operations and large qubit numbers to surpass ...
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Atom-based quantum computers are catching up in the race to usefulness: A quantum computer made from extremely cold atoms can correct its own errors during long ...
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Efficient quantum software for future quantum computers: Researchers have developed a quantum algorithm to simulate tiny particles under the influence of heat ...
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Israeli quantum startup Qedma just raised $26 million, with IBM joining in: Qedma specializes in error mitigation software. Its main piece of software, QESEM ...
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OpinionMicrosoft’s and Google’s Quantum Computing Claims Add to Consumer Confusion: Schrödinger’s cat is scratching its head over the “topological” qubit that is ...
scientificamerican.com/article/microsofts-and-googles-quantum-computing-claims-add-to-consumer-confusion/

Key FactsQuantum Computing: Big Claims, Unclear Evidence
Jun 3, 2025 · Reading time: ~45 sec.
Summary created with AI assistance · Source: scientificamerican.com
Summary created with AI assistance · Source: scientificamerican.com
- Microsoft announced a topological quantum computer in February 2025, but a Nature peer-review note said the study had not definitively demonstrated Majorana zero modes.
- Google unveiled its 105-qubit Willow chip in December 2024, after which Mark Zuckerberg voiced doubts and quantum-computing stocks fell.
- Amazon announced the nine-qubit Ocelot chip at the end of February 2025, using a superconducting resonator and photon-controlled, error-tolerant cat qubits.
- No clear winner has emerged among the competing technical approaches, and scaling them to about one million qubits remains uncertain.
The Majorana 1 processor offers a clear path to fit a million qubits on a single chip that can fit in the palm of one’s hand.— Microsoft (from a press release about the Majorana-1 processor)
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