Scientists have proposed a groundbreaking theory for connecting quantum processors over vast distances, enabling the creation of a giant quantum computing network that functions like a single machine. This innovative approach could lead to more powerful and scalable quantum computers.
Quantum computing uses qubits, which encode data in a superposition of 1 and 0, allowing for parallel processing. The new theory suggests linking qubits through quantum entanglement, giving them “extra” operating frequencies to resonate with other qubits or work independently.
The goal is to overcome the challenge of scaling up quantum processors, which currently require millions of qubits to achieve “quantum supremacy.” However, maintaining stability between entangled qubits and scaling up complex circuitry poses significant hurdles.
To address these challenges, researchers propose giving each qubit extra frequencies, allowing them to work together like a single quantum computer despite being separated by vast distances. This approach eliminates the need for one massive processor, making it easier to maintain and scale.
Study lead author Vanita Srinivasa explained that controlling individual qubits via distinct frequencies is crucial for realizing the capabilities unique to a quantum computer. The scientists’ solution involves applying oscillating voltages to generate extra frequencies, linking multiple qubits together without requiring matching original frequencies.
This modular approach could enable future quantum computers to be built using smaller arrays of qubits connected by robust and long-range entangled links, making them more powerful and capable of faster calculations than current technology.
Source: https://www.livescience.com/technology/computing/radical-quantum-computing-theory-could-lead-to-more-powerful-machines-than-previously-imagined