Quantinuum’s Post

View organization page for Quantinuum, graphic

28,972 followers

Scaling up quantum computers from dozens of qubits to millions is one of the most complex challenges across our industry. We’ve just published a paper that can have a huge impact on how quickly and efficiently we scale towards industrial relevance, via something called “safe lattice surgery” on high-rate codes.    Read the scientific paper by here: https://lnkd.in/eZUBTm7d   To run something like Shor’s famous algorithm, scientists have estimated that one would need thousands of “logical” (error corrected) qubits, which are each made from multiple physical qubits. There are almost infinite ways to construct logical qubits out of physical qubits, but some approaches have huge implications for how quickly #quantum computers can scale up. For example, one approach might take 20 physical qubits to build one logical qubit, while another might take only 5 physical qubits per logical qubit. When your scheme takes fewer physical qubits per logical qubit, scientists call it a “high-rate code”, and it is these “codes” that we are interested in developing. Of course, there’s no free lunch - we typically need extra qubits to do computation, which add an additional overhead in terms of physical qubit number.     Once you have logical qubits, to perform “universal” computation, you also need things called “magic state distillation” and “lattice surgery” (there are other options, but for this post we will focus on this). Until our latest paper, scientists had only figured out how to do lattice surgery on “low-rate” codes (which we want to move past), or on high-rate codes but very inefficiently (using many ancillary qubits). In our new paper, we’ve developed an algorithmic method for performing safe lattice surgery on high-rate codes, efficiently.    Our leadership in quantum error correction (QEC) would be impossible without our world-record commercial hardware fidelity. Quantum hardware that doesn’t have fidelity at our level will not be able to benefit from QEC in any meaningful way – until your hardware has good enough fidelity, QEC operations will only add noise. Our world-class fidelity, combined with our flexible QCCD architecture offering all-to-all connectivity, mid-circuit measurement, and feed-forward means that our team has an ideal playground for exploring the #QEC landscape, as we have proven over and over again.   Explore our publications: https://lnkd.in/eVna3sgX   Learn more here: https://lnkd.in/eZUBTm7d   Access the H-Series hardware here: https://lnkd.in/eV6b6nWw

  • No alternative text description for this image

It's amazing to see progress in quantum computing. Safe lattice surgery sounds like a game-changer for scaling up.

Like
Reply

To view or add a comment, sign in

Explore topics