How ‘Qudits’ Could Boost Quantum Computing

image via New Scientist

March 26, 2025, 2:00 PM

• •Qudits are units of information that offer combinations of three or more simultaneous states.
• •Qudits can help to make calculations on a quantum computer more efficient and less error-prone.
• •In the future, such simulations could help to explain how quarks stick together to form protons, or how neutrinos collide with one another in the intense environment of a supernova explosion.

Qudits are multi-dimensional cousins of qubits, and could make quantum computers more efficient and less prone to error. Researchers have used qutrits and ququints to simulate how high-energy quantum particles interact through an electromagnetic field. In the future, such simulations could help to explain how quarks stick together to form protons, or how neutrinos collide with one another in the intense environment of a supernova explosion.

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