JQI Seminar

Date
Mon, Aug 30, 2021 11:00 am - 12:00 pm
Location
ATL 2400

Description

Speaker: Pedram Roushan, Google LLC

Title: Experiments on superconducting processors at the dawn of NISQ era

Abstract: The recent successful computation beyond the capability of classical computers has brought considerable attention to the Noisy Intermediate Scale Quantum (NISQ) processors. The only way to evaluate the promise of NISQ devices is to implement algorithms on them that are of interest to the scientific community. In this talk, I will present two of such examples based on our recent works on time crystals and the Kitaev toric code [1,2].  The first work is on study phase transitions, which is challenge due to limited programmability, finite coherence time, and finite size of NISQ hardware. With addressing these issues, we provide a set of experimental benchmarks and establish a scalable approach to study phases of matter on current quantum processors.  The theme of the second work is in studying topological states. The discovery of topological order has revolutionized the understanding of quantum matter in modern physics and provided the theoretical foundation for many quantum error correcting codes. Realizing topologically ordered states has proven to be extremely challenging in both condensed matter and synthetic quantum systems. Here, we prepare the ground state of the toric code Hamiltonian using an efficient quantum circuit. Our results demonstrate the potential of NISQ processors to provide key insights into topological quantum matter and quantum error correction.

[1] https://arxiv.org/abs/2107.13571

[2] https://arxiv.org/abs/2104.01180


Host: Maissam Barkeshli/ Alicia Kollar

Upcoming Events

22 Sep
High Energy
Date Wed, Sep 22, 2021 4:00 pm - 5:30 pm
23 Sep
Online Nuclear Theory Seminar
Thu, Sep 23, 2021 11:00 am - 12:30 pm
24 Sep
Friday Quantum Seminar: Wade Hodson
Fri, Sep 24, 2021 12:00 pm - 12:45 pm
24 Sep
Materials Science and Engineering Seminar
Fri, Sep 24, 2021 1:00 pm - 2:00 pm
27 Sep
JQI Seminar
Mon, Sep 27, 2021 11:00 am - 12:00 pm