skip to main content

IQIM Postdoctoral and Graduate Student Seminar

Wednesday, September 22, 2021
11:00am to 12:00pm
Add to Cal
Online Event
Practical quantum error correction with biased noise qubits and XZZX code
Shruti Puri, Assistant Professor of Applied Physics, Yale,

Joint IQIM/AWS Seminar Series

Abstract: Scalable, fault-tolerant (FT) quantum error correction (QEC) remains a daunting task because of challenging threshold requirements and significant resource cost of quantum hardware and classical systems control. A particularly resource-heavy subroutine used in several QEC codes is called magic-state distillation (MSD). Considering the physical error rates of first-generation quantum devices, the overhead costs for MSD can completely overwhelm the quantum advantage promised otherwise. In this talk I will show how native gate operations available in a qubit architecture that experience biased-noise can be leveraged in the XZZX surface-code for high-threshold, low-overhead FT QEC. In particular, I will discuss a new noise-aware protocol for high-fidelity preparation of input states used in MSD. With this protocol we are able to significantly reduce the resource cost of MSD with modest system requirements, bringing us a step closer to achieve practical quantum computing with system parameters that are within reach of current experiments.

Join by zoom

For more information, please contact Marcia Brown by phone at 626-395-4013 or by email at [email protected].