Intel Takes Next Step Toward Building Scalable Silicon-Based Quantum Processors
May 01 2024 - 10:00AM
Business Wire
Research published in Nature demonstrates
high qubit control fidelity and uniformity in single-electron
control.
Today, Nature published an Intel research paper, “Probing single
electrons across 300-mm spin qubit wafers,” demonstrating
state-of-the-art uniformity, fidelity and measurement statistics of
spin qubits. The industry-leading research opens the door for the
mass production and continued scaling of silicon-based quantum
processors, all of which are requirements for building a
fault-tolerant quantum computer.
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A photo shows a 300-millimeter Intel
silicon spin qubit wafer. In May 2024, Nature published an Intel
research paper, “Probing single electrons across 300-mm spin qubit
wafers,” demonstrating state-of-the-art uniformity, fidelity and
measurement statistics of spin qubits. (Credit: Intel
Corporation)
Quantum hardware researchers from Intel developed a
300-millimeter cryogenic probing process to collect high-volume
data on the performance of spin qubit devices across whole wafers
using complementary metal oxide semiconductor (CMOS) manufacturing
techniques.
The improvements to qubit device yield combined with the
high-throughput testing process enabled researchers to obtain
significantly more data to analyze uniformity, an important step
needed to scale up quantum computers. Researchers also found that
single-electron devices from these wafers perform well when
operated as spin qubits, achieving 99.9% gate fidelity. This
fidelity is the highest reported for qubits made with
all-CMOS-industry manufacturing.
The small size of spin qubits, measuring about 100 nanometers
across, makes them denser than other qubit types (e.g.,
superconducting), enabling more complex quantum computers to be
made on a single chip of the same size. The fabrication approach
was conducted using extreme ultraviolet (EUV) lithography, which
allowed Intel to achieve these tight dimensions while also
manufacturing in high volume.
Realizing fault-tolerant quantum computers with millions of
uniform qubits will require highly reliable fabrication processes.
Drawing upon its legacy in transistor manufacturing expertise,
Intel is at the forefront of creating silicon spin qubits similar
to transistors by leveraging its cutting-edge 300-millimeter CMOS
manufacturing techniques, which routinely produce billions of
transistors per chip.
Building on these findings, Intel plans to continue to make
advances in using these techniques to add more interconnect layers
to fabricate 2D arrays with increased qubit count and connectivity,
as well as demonstrating high-fidelity two-qubit gates on its
industry manufacturing process. However, the main priority will
continue to be scaling quantum devices and improving performance
with its next generation quantum chip.
Read the complete findings in Nature.
About Intel
Intel (Nasdaq: INTC) is an industry leader, creating
world-changing technology that enables global progress and enriches
lives. Inspired by Moore’s Law, we continuously work to advance the
design and manufacturing of semiconductors to help address our
customers’ greatest challenges. By embedding intelligence in the
cloud, network, edge and every kind of computing device, we unleash
the potential of data to transform business and society for the
better. To learn more about Intel’s innovations, go to
newsroom.intel.com and intel.com.
© Intel Corporation. Intel, the Intel logo and other Intel marks
are trademarks of Intel Corporation or its subsidiaries. Other
names and brands may be claimed as the property of others.
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Laura Stadler 1-619-346-1170 laura.stadler@intel.com
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