Oxford University researchers have achieved a breakthrough in distributed quantum computing by successfully teleporting a controlled quantum gate between two modules for the first time. Published in Nature, the study emphasizes deterministic and repeatable teleportation, overcoming limitations seen in previous demonstrations that focused on transferring quantum states. The team manages to teleport a fundamental two-qubit quantum gate across a distance of two meters in optical fiber, achieving 86% fidelity. This work paves the way for implementing distributed quantum algorithms that depend on interactions between qubits located in separate quantum modules.
"In our study, we use quantum teleportation to create interactions between these distant systems." - Dougal Main, Oxford Graduate Student.
"This is particularly important for quantum computing, since if these interactions were probabilistic, the probability of successfully completing a computation without any failures becomes exponentially small." - Dougal Main.
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