Hi all,
Cornelius Hempel, a postdoc in the group of professor Rainer Blatt at
Innsbruck (
http://www.quantumoptics.at/index.php/en/) is visiting our group
and will be giving a talk tomorrow at 1:30 pm in the department center. He
will be talking about quantum computation with trapped ions for simulating
magnetism and chemistry! See the abstract below. If you have time please
stop by.
*Exploring magnetism and chemistry with a trapped-ion quantum simulator*
Quantum computers & simulators promise access to previously inaccessible
states and properties of many-body quantum systems with potential use in
fields ranging from material science to pharmaceutical chemistry. Current
experimental investigations are mainly focused on analog quantum
simulations as full quantum error correction is still under development.
In this talk, I will first introduce the trapped-ion platform and present
its capabilities in the context of quantum gates and analog simulations. Next,
I will report on work in which we investigate the dynamical behavior of
one-dimensional spin chains. Building on recent experiments that examined
how entanglement and information travels around an interacting quantum
system [1], we have implemented a new spectroscopy technique to directly
measure the system’s dispersion relation and reveal interactions between
the emergent quasi-particles [2]. I will briefly touch upon ongoing work on
ways to efficiently characterize [3] such quantum systems with up to 20
particles.
Lastly, I will describe a recent experiment in which we realized a novel
quantum chemistry algorithm [4] in a fully scalable way. Here, we joined
quantum and classical resources in a hybrid approach, which allows us to
simulate properties of small molecular systems on a noisy quantum processor
without error correction using a small number of quantum gates.
[1] P. Jurcevic et al, Nature *511*, 202 (2014).
[2] P. Jurcevic et al, PRL *115*, 100501 (2015).
[3] M. Cramer et al, Nat. Commun. *1*, 149 (2010).
[4] A. Peruzzo et al. Nat. Commun. *5*, 4213 (2014).
Best,
Jhonathan.
--
Jonathan Romero Fontalvo
*Ph.D. Student in Chemical Physics*
*Harvard University*
Website:
https://sites.google.com/site/jonathanromeroswebsite/