IonQ announced the creation of a near-perfect architecture for a quantum computer. It is based on the use of ions and shows such high accuracy and reliability that physics issues are now fading into the background. The developers are left to focus on improving the software and preparing for the creation of a commercial version of the supercomputer.
In quantum computers from IBM or Intel, qubits, quantum bits, are made on superconductors and therefore can be easily integrated into typical electronic circuits. IonQ's quantum computer uses magnetic traps to keep the ytterbium ions in a vacuum in the right order. To control them, laser beams are used - such qubits turned out to be much more stable and more reliable than others. In particular, the accuracy in single and double qubits reached 99.97% and 99.3% for a system of 79 qubits.
One of the main problems of quantum systems is that qubits are subject to quantum confusion, and therefore over time, as they participate in different operations, they decohere, losing stability. The more iterations, the more errors accumulate and the lower the computational accuracy. The developers of the ion computer managed to connect an arbitrary pair of qubits, instead of transmitting data along a chain of qubits, thereby significantly reducing the number of operations. As a result, even after 50 operations, the qubit remained unchanged by 75%, which is very large by modern standards.
The developers of IonQ demonstrated their achievement by the example of calculating the energy of the state of a water molecule. This is a fairly simple task, but it requires a lot of repetitive calculations of the same type, which was previously an insurmountable barrier for quantum computers. The ionic model has shown excellent results, which indicates its high potential and opens up new avenues for the development of quantum computing systems.