Quantum IT company Alice & Bob has improved the reliability of his cat qubitsthat could Quantum computers much more precise.
Room tolerance is a major challenge in quantum computer science. This is because the quit In quantum computers, are “noisy” and sensitive to decoherence – the loss of quantum information due to interference from the external environment. Improving the reliability of qubits by implementing tolerant technologies at breakdowns has therefore been a key research area.
There has been a particular reader to remove the error rates associated with Bit madness (when a qubit changes the probabilities of measuring 0 or 1). But before, this had led to an increase in errors with phase madness (when a qubit changes its probabilities of positive or negative).
Cat qubits are a type of qubit which imitates the principle of superposition of Schrödinger cat – An experience of thought that postulates that a cat in a box with a random activated poison could be considered both alive and dead until it is directly observed.
“Cat qubits” are designed to reduce bits flips, thus reducing the resources required for error correction. Cat qubits have been studied by several research teams, with qubits created by scientists from Alice & Bob even integrated into the Chip Ocelot, manufactured by Amazon Web Services (AWS).
The previous research of Alice & Bob has shown that cat’s qubits could reach a bit-flip lifespan of 138 milliseconds.
But in a new study downloaded on February 28 on the pre-print arxiv Database, scientists have described a new way of stabilizing chat qubits, with better protection against flips up to 160 times, equivalent to a 22 -second cat life. The effect on the rate of Flip phase was minimal.
The team succeeded by compressing the quantum states of cat qubits so that there is a smaller overlap between the two states. For these pressed chat qubits, they have shown a sharp reduction in the error rate of binary flip as the number of photons increased.
The technique demonstrated in this research is particularly useful, because it does not require any modification of the design of the circuit. Compression “chat” qubits will therefore make the error correction less with a high intensity of resources than previous methods.
The next step in the search for Alice & Bob will aim to develop universal quantum computers tolerant to breakdowns, where flips and phase flips can be managed effectively. This could lead to practical applications in fields such as chemistry and materials science.