Other quantum computers with more qubits exist, but Condor will be the world’s largest general-purpose quantum processor. “As we scale upwards, we’re learning design rules like ‘This can go over this this can’t go over this this space can be used for this task,’” Chow says. By separating the wires and other components needed for readout and control onto their own layers, a strategy that began with Eagle, the researchers say they can better protect qubits from disruption and incorporate larger numbers of them. Jerry Chow, IBM’s director of quantum infrastructure. “A thousand qubits really pushes the envelope in terms of what we can really integrate,” says But D-Wave’s computers are specialized machines for solving optimization problems, whereas Condor will be the world’s largest general-purpose quantum processor. Other quantum computers have more qubits than does IBM’s 1,121-qubit Condor processor-for instance, D-Wave Systems unveiled aĥ,000-qubit system in 2020. IBM expects to build quantum computers of increasing complexity over the next few years, starting with those that use the Condor processor or multiple Heron processors in parallel. In 2019, the company created the 27-qubit Falcon in 2020, the 65-qubit Hummingbird in 2021, the 127-qubit Eagle, the first quantum processor with more than 100 qubits and in 2022, the 433-qubit Osprey.
Put the first quantum computer in the cloud anyone to experiment with-a device with 5 qubits, each a superconducting circuit cooled to near absolute zero. Nevertheless, IBM has steadily increased its qubit numbers. Entanglement and other quantum states necessary for quantum computation are infamously fragile, being susceptible to heat and other disturbances, which makes scaling up the number of qubits a huge technical challenge.
While quantum computers can, in theory, quickly find answers to problems that classical computers would take eons to solve, today’s quantum hardware is still short on qubits, limiting its usefulness. This article is part of our special report
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