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Certified randomness using a trapped-ion quantum processor
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Certified randomness using a trapped-ion quantum processor

Researchers have achieved a major quantum computing breakthrough by using a 56-qubit quantum computer to generate certifiably random numbers verified by classical supercomputers, marking a shift from theoretical quantum advantage to practical application with significant implications for cryptography, security, and fairness.

A team of scientists from Princeton University has measured the energies of electrons in a new class of quantum materials and has found them to follow a fractal pattern. Fractals are self-repeating patterns that occur on different length scales and can be seen in nature in a variety of settings, including snowflakes, ferns, and coastlines. The image shows a quantum version of a fractal pattern, known as “Hofstadter’s butterfly,” which has long been predicted, but the new study marks the first time it has been directly observed experimentally in a real material. Credit: Yazdani group
News

Researchers Captured Elusive Quantum Hofstadter’s Butterfly Pattern

Princeton physicists accidentally discovered and directly visualized Hofstadter’s butterfly—a theoretical fractal pattern of electron energy levels predicted in 1976—using scanning tunneling microscopy on twisted bilayer graphene, revealing not only the long-sought fractal energy spectrum but also new quantum phenomena driven by electron interactions beyond Hofstadter’s original calculations.

Beyond Classical: D-Wave First to Demonstrate Quantum Supremacy on Useful, Real-World Problem
Business

D-Wave First to Demonstrate Quantum Supremacy

D-Wave Quantum Inc. has achieved the world’s first demonstration of quantum computational supremacy on a useful real-world problem, using their Advantage2 prototype quantum annealer to perform complex magnetic materials simulations in minutes that would take a classical supercomputer nearly one million years and consume more than the world’s annual electricity.

chematic diagram of the Zuchongzhi-3 chip. 105 qubits and 182 couplers are integrated on the same chip to perform quantum random circuit sampling tasks. Credit: USTC
China

China Quantum Computing Breakthrough with Zuchongzhi-3

Researchers at China’s USTC have developed Zuchongzhi-3, a groundbreaking 105-qubit quantum computer that processes calculations 10^15 times faster than the most powerful supercomputers and one million times faster than Google’s latest quantum systems, marking a significant advancement in quantum supremacy.

The pair of silicon microchips that compose the Ocelot logical-qubit memory chip.
Business

Amazon announces Ocelot quantum chip

Amazon Web Services has unveiled Ocelot, a groundbreaking quantum chip that uses cat qubits and bosonic quantum error correction to significantly reduce resource requirements, achieving bit-flip times approaching one second while requiring only one-tenth the resources of traditional approaches, potentially revolutionizing the path to commercially viable quantum computing.

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