Margarita Davydova Talk - (HQI Quantum Fest 2023) Today. 1pm-1:30pm via Zoom. Please see below for the log-in information. *Title: *Floquet codes, automorphisms, and quantum computation *Abstract: * In my talk, I will introduce our recent generalizations of Floquet codes, which are a new kind of quantum error-correcting codes defined by periodic measurement sequences. In particular, we propose a new kind of measurement-based quantum computation inspired by these codes. In this model, the quantum logical gates are implemented by short sequences of low-weight (namely, two- and rarely, three-qubit) measurements which simultaneously encode logical information and enable error correction. Our model for quantum computation can be viewed as a nontrivial dynamics of quantum information that is both induced and protected by the same set of measurements. We introduce a new class of quantum error-correcting codes which we call dynamic automorphism codes. We construct explicit examples, called dynamic automorphism color codes, that can implement the full Clifford group in 2+1d and a non-Clifford gate in 3+1d, making the first step towards universal quantum computation in this model. The talk is based on recent work with Nathanan Tantivasadakarn, Shankar Balasubramanian, and David Aasen [PRX Quantum 4, 020341 (2023)]; [arxiv: 2307.10353]. Join Zoom meeting https://harvard.zoom.us/j/91759704175?pwd=S1JZVWI2NHNuTmpvWGJlcEkva2N5dz09 Password: 659850 Join by telephone (use any number to dial in) +1 929 436 2866 +1 301 715 8592 +1 305 224 1968 +1 309 205 3325 +1 312 626 6799 +1 646 931 3860 +1 386 347 5053 +1 507 473 4847 +1 564 217 2000 +1 669 444 9171 +1 669 900 6833 +1 689 278 1000 +1 719 359 4580 +1 253 205 0468 +1 253 215 8782 +1 346 248 7799 +1 360 209 5623 International numbers available: https://harvard.zoom.us/u/acXdtzngVi One tap mobile: +19294362866,,91759704175# US (New York) Join by SIP conference room system Meeting ID: 917 5970 4175 91759704175.659850(a)zoomcrc.com *Claire M. Gallagher* Staff Assistant III Harvard Quantum Initiative 33 Oxford Street, MD 351 Cambridge, MA 02138 P. (617) 496-2361 _______________________________________________ Harvard-quantum-initiative mailing list -- harvard-quantum-initiative(a)lists.fas.harvard.edu To unsubscribe send an email to harvard-quantum-initiative-leave(a)lists.fas.harvard.edu _______________________________________________ Lukingroup mailing list -- lukingroup(a)lists.fas.harvard.edu To unsubscribe send an email to lukingroup-leave(a)lists.fas.harvard.edu