Enter the innovative French startup, Alice & Bob, which is pioneering a new kind of qubit designed to conquer the quantum error challenge. Their approach draws inspiration from Schrödinger’s Cat experiment, a foundational concept in quantum mechanics that explores the notion of quantum superposition.
Rather than encoding qubits using varying energy levels, Alice & Bob have devised a strategy based on establishing two diametrically opposed states—akin to the famous life-or-death state of Schrödinger’s Cat. They’ve achieved this by utilizing superconducting microwave resonators that oscillate between two distinct states.
The researchers believe that breaking RSA-2048 encryption using a traditional quantum computer would require approximately 22 million normal qubits, whereas their ‘cat state’ qubits would reduce the requirement to just 350,000. Furthermore, for each logical qubit, Alice & Bob’s technology would need only 40 qubits.
