Barium-based ion trapping quantum system. Source: https://ionq.com
The accuracy and error-free state in quantum computing are vital for the continued adoption of quantum computing in industries ranging from AI, Defense, Space, drug discovery, finance to chemistry. The new Barium Ion Trap system from Ionq showing excellent performance. Let's talk about how errors happen during quantum computation and why it is essential to developing quantum computers. Error correction is one of the bottlenecks in scaling up thousands and millions of "perfect" qubits.
There are three ways to experience errors when running gates and circuits running an algorithm."
Inadequate state preparation at the beginning of an algorithm.
Imperfect quantum logic gate while running the algorithm.
Imperfect measurement in reading out results.
All three sources of error must be mitigated to allow future scaling of the qubits. In my mind, the goal should be 1,000,000 qubits of Barium Ion trapping quantum platform arguably equal to quantum Supremacy, bypassing the current NISQ era while transitioning to the quantum Advantage era. Personally, I like to jump into the future. The Ionq might have the answer, but I want to see more 9s.
As stated by Ionq, "State detection errors grow with every qubit added, meaning that as systems scale, improved state detection fidelity is increasingly critical for the computer to deliver accurate results to a user. Even assuming flawless quantum logic gates, an average SPAM fidelity of 99% would limit a system's #AQ (number of algorithmic qubits ) to around 100; with a SPAM fidelity of 99.96%, it would require roughly 2000 qubits before SPAM (state preparation and measurement) became the limiting factor."
Ionq:
"IonQ (NYSE: IONQ), a leader in quantum computing, today published results from its new barium-based quantum computer showing its superior state detection fidelity. The results reflect a 13x reduction in state preparation and measurement (SPAM) errors, a metric core to producing accurate and reliable quantum computers. On a per-qubit basis, IonQ has reduced these errors from 50 errors per 10,000 computations down to only 4 per 10,000 computations. In other words, IonQ’s barium qubits have brought the company from a 99.5% state detection fidelity up to an industry-leading 99.96%."
Read the rest here:
Related technology in microfabrication of Barium ion trapping system:
Comments