IBM Q System Two

{{Short description|First modular utility-scaled quantum computer system}}

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| name = IBM Quantum System Two

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| logo = IBM Quantum System Two logo.svg

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| caption = IBM Quantum System Two, at Yorktown Heights, New York

| developer = IBM Research

| manufacturer = IBM

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| type = Quantum computer

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| releasedate = {{Start date and age|2023|12|04}}

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| dimensions = 22 ft x 22 ft x 12 ft (including the glass structure)

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| predecessor = IBM Quantum System One

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| website = {{URL|https://research.ibm.com/blog/quantum-roadmap-2033}}

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IBM Quantum System Two is the first modular utility-scaled quantum computer system, unveiled by IBM on December 4, 2023.{{Citation |title=Unveiling IBM Quantum System Two | date=4 December 2023 |url=https://www.youtube.com/watch?v=Qndz54SGCAs |access-date=2023-12-22 |language=en}}

It is a successor to the IBM Quantum System One.

It contains three IBM Quantum Heron processors, which can be scaled up due to its modularity, and later upgraded for newer QPU's, as it is fully upgradeable.{{Cite web |last= |first= |date=2023-12-18 |title=IBM advances quantum computing developments with innovations |url=https://backendnews.net/ibm-advances-quantum-computing-developments-with-innovations/ |access-date=2023-12-23 |website=Back End News |language=en-US}}

For its maximum efficiency, it has to be cooled down to a temperature of a few hundredths of degrees above absolute zero (10-20 mK),{{Cite web |last=Freund |first=Karl |title=IBM Launches Quantum System Two And A Roadmap To Quantum Advantage |url=https://www.forbes.com/sites/karlfreund/2023/12/04/ibm-launches-quantum-system-two-and-a-roadmap-to-quantum-advantage/ |access-date=2023-12-22 |website=Forbes |language=en}} using dilution technology.