Experimental quantum error correction1/10/2024 ![]() That might not sound like a big difference, but it’s a crucial step in the quest to build much larger quantum computers. The team was able to successfully put the logical qubit into its starting state and measure it 99.4% of the time, despite relying on six quantum operations that are individually expected to work only about 98.9% of the time. This is the first time that a logical qubit has been shown to be more reliable than the most error-prone step required to make it. The box that contains the ion trap quantum computer in Christopher Monroe’s lab. They created the logical qubit based on a quantum error correction code so that, unlike for the individual physical qubits, errors can be easily detected and corrected, and they made it to be fault-tolerant-capable of containing errors to minimize their negative effects. In their experiment, the researchers combined several qubits-the quantum version of bits-so that they functioned together as a single unit called a logical qubit. In a paper published in the journal Nature today (October 4, 2021), the team shared how they took this landmark step toward reliable, practical quantum computers. They have shown in an experiment, for the first time, that an assembly of quantum computing pieces can be better than the worst parts used to make it. But JQI Fellow Christopher Monroe’s group, together with colleagues from Duke University, have made progress toward ensuring we can trust the results of quantum computers even when they are built from pieces that sometimes fail. Pobody’s nerfect-not even the indifferent, calculating bits that are the foundation of computers. Quantum computer experiments at UMD show that combining quantum computer pieces doesn’t have to mean combining their error rates. A chip containing an ion trap that researchers use to capture and control atomic ion qubits (quantum bits).
0 Comments
Leave a Reply.AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |