[Physics-grads-open] PASS talk on Quantum Computing

[Pooyan Goodarzi]

reminder: Happening in one hour!


On 10/31/24 10:08 AM, Pooyan Goodarzi wrote:
>
> Hi all,
>
>
> We will have our next PASS talk on Monday with Shelby talking about 
> his work on Quantum Computing. Please join us on *November 4th 
> (Monday)* at *noon* (from 12:00 pm to 1:00 pm) in the *Nebula Room* 
> (PHYS 3027).
>
>
> *Shelby Mo, PhD student*
>
> Monday, 12:00 pm, Nebula Room (PHYS 3027)
>
> *Modular Fault tolerant scaling of a quantum chip with lossy links*
> *
> *
> A modular approach presents a highly promising direction for scalable 
> quantum computing. In this work, we show that separate patches of 
> rotated surface code can be reliably connected through a 
> fault-tolerant interface, even in the presence of substantial noise. 
> By implementing a ZigZag cut along the boundary and using a pair of 
> entangled ancillas as an extraction gadget—similar to Shor's gadget, 
> hereafter referred to as the CAT ancilla—our design withstands up to 
> 28 times more noise at the interface than in the bulk, doubling the 
> best-known tolerance to date (Ramette /et al./, 2024). Our approach 
> also cleverly mitigates hook errors through an optimized measurement 
> schedule and strategic boundary choice between modules. Achieving a 
> high interface noise threshold around 18% and a bulk threshold near 
> 1%, this design enables exceptionally low logical error rates, marking 
> a critical step toward practical fault-tolerant scaling of modular 
> quantum devices with existing technologies.
>
>
> If you’re interested in sharing your work as a speaker, please feel 
> free to add your name to the spreadsheet [Google Sheet 
> <https://docs.google.com/spreadsheets/d/1N3ncf43jdB6aHYHhyWmyHMycxDg4_phHZXLkQvviO0o/edit?usp=sharing>].
>
>
> Best,
> Pooyan
> Physics and Astronomy Student Seminar (PASS)
> *
> *
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.ucr.edu/pipermail/physics-grads-open/attachments/20241104/b14674d9/attachment.html>