Ben Brown
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benbrown.bsky.social
Ben Brown
@benbrown.bsky.social
Research scientist at IBM Quantum
The deadline is a soft one but don't wait around either. Send me a message if you have any questions.
October 14, 2025 at 9:11 AM
Congratulations!
September 2, 2025 at 5:14 AM
To those that may have noticed v1 on arXiv, the published article comes with an expanded discussion on the results as supplemental information. This new material is also included as an appendix on the second version on arXiv arxiv.org/abs/2411.15035. Thanks to the referees for their reviews.
Color code with a logical control-$S$ gate using transversal $T$ rotations
The color code has been invaluable for the development of the theory of fault-tolerant logic gates using transversal rotations. Three-dimensional examples of the color code have shown us how its struc...
arxiv.org
August 15, 2025 at 8:12 AM
We have 3D color codes with transversal T and CCZ gates, so why not a CS gate as well? Here is one such example to fill that gap. I wonder if it is unique. Unlike color codes with T and CCZ gates, I found I needed to use a new boundary that terminates all string logical operators, but no membranes.
August 15, 2025 at 8:07 AM
It was great to see you there Ken
July 13, 2025 at 9:04 PM
Lastly, let me mention that many of our gates start and finish with some planar version of the surface code, so our proposal is compatible with conventional surface code quantum computing schemes. That means we can combine our gates with all of its standard Clifford gates to get a universal gate set
March 21, 2025 at 9:32 AM
We also find these gates can be scaled to produce arbitrarily good magic states, as we can correct the non-Abelian anyons that are created by errors using a just in time decoder. That is even if our stabilizer measurements are not completely reliable.
March 21, 2025 at 9:26 AM
Not only that, but our observation showed us how to do a whole laundry list of non Clifford gates in 2D on all kinds of microscopic lattices. In fact we've already run a small instance of one of these gates experimentally arxiv.org/abs/2305.13581.
March 21, 2025 at 9:23 AM
Thanks. Think I got it. I only got onto bsky a few days ago and I haven't spent long working out how to navigate around it just yet.
October 18, 2023 at 8:46 AM
Please add me. Also to the superconducting qubit one I think I saw you mention a few days ago.
October 17, 2023 at 8:56 AM