New Quantum Computer Breakthrough Could Reduce Errors by 100 Times

Topic: Physics

Researchers at the University of Surrey have proposed a new kind of qubit that could help address one of the biggest obstacles in quantum computing: keeping error rates low. The concept uses superfluid helium to create a qubit that may be less sensitive to disturbances.

Quantum computers rely on tiny units called qubits to store and process information. However, many current systems use superconducting circuits, which are highly sensitive to electromagnetic noise and stray electrical charges. This can disrupt the fragile quantum information stored in a qubit.

Researchers at the University of Surrey have proposed a new kind of qubit that could help address this problem. They used superfluid helium-3, an unusual form of liquid helium that can flow without friction, to create a device called the Superfluid Helium Oscillator Quantum (SHOQ) device. This device uses charge-neutral superfluid helium, which means it carries no electric charge and is naturally protected from certain types of electromagnetic noise.

The researchers' calculations suggest that the SHOQ device could have error rates about 100 times lower than conventional superconducting qubits. Dr. Priya Sharma, lead author of the study, said: 'We are not the first to think about the individual components behind this idea, but what we have done for the first time is bring them together in a microfluidic device and work out the specific details that could enable the device to function as a qubit.'

The SHOQ device could potentially be integrated with superconducting quantum technology, allowing different types of qubits to perform different jobs within the same system. It could also be used as a form of quantum memory, storing quantum information while other hardware carries out calculations.

Why It Matters

This breakthrough could lead to more powerful and reliable quantum computers in the future, which could have significant implications for fields like medicine, finance, and climate modeling.

Key Facts

• Researchers at the University of Surrey proposed a new kind of qubit that uses superfluid helium-3.
• The SHOQ device has error rates about 100 times lower than conventional superconducting qubits.
• The device uses charge-neutral superfluid helium, which is naturally protected from certain types of electromagnetic noise.
• The SHOQ device could be integrated with superconducting quantum technology or used as a form of quantum memory.
• Dr. Priya Sharma and Dr. Eran Ginossar are the lead authors of the study.

Key Terms

qubit

A tiny unit that stores and processes information in a quantum computer.

superfluid helium-3

An unusual form of liquid helium that can flow without friction.

quantum memory

A device that stores quantum information while other hardware carries out calculations.

Implications

This breakthrough could lead to more powerful and reliable quantum computers in the future, which could have significant implications for fields like medicine, finance, and climate modeling.