/Quantum computing: Forget about qubits, here come qutrits

Quantum computing: Forget about qubits, here come qutrits

Summary: Rigetti unveils 80-qubit processor quantum computer consisting of two 40-qubit computers, and experiments with ‘third state’ in quantum processors.

Original author and publication date: Liam Tung – December 27, 2021

Futurizonte Editor’s Note: I still remember when, less than a decade ago, my students at a private university in Colorado insisted quantum computers will never be real.

From the article:

US quantum computer outfit Rigetti Computing has announced the Aspen-M, an 80-qubit processor quantum computer that consists of two connected 40-qubit chips.

The Aspen-M, available in a private beta, is the culmination of Rigetti’s particular take on large-scale quantum computers.

The firm is pursuing multi-chip quantum processors and announced plans earlier this year to offer it to customers through its Quantum Cloud Services platform

nstead of scaling up a single quantum processor, it’s been linking smaller chips to create a modular processor with a larger number of qubits – the quantum version of bits in classical computers, characterized by 1s and 0s, which can achieve superposition where a bit can be both 1 and 0 or any combination inbetween those states.

Rigetti also launched a new Aspen system based on a single-chip 40-qubit processor, which is generally available on Rigetti Quantum Cloud Services, Strangeworks, and Amazon Web Services’ Braket managed quantum computing service.

Rigetti claims Aspen superconducting processors bring scale, speed, and fidelity improvements that deliver 2.5 faster quantum processing times over its existing systems and reduce readout errors by up to half, thus improving the reliability of quantum program results.

“Our machines are now at a scale and speed where they can process the real-world data sets that underpin high-impact applications,” said Chad Rigetti, founder and CEO of Rigetti Computing. “We believe these systems give researchers and enterprises the best platform to pursue quantum advantage on real problems.”

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