Digital quantum simulation of the statistical mechanics of a frustrated magnet

Jingfu Zhang, Man-Hong Yung, Raymond Laflamme, Alán Aspuru-Guzik and Jonathan Baugh ()
Additional contact information
Jingfu Zhang: Institute for Quantum Computing, University of Waterloo
Man-Hong Yung: Harvard University
Raymond Laflamme: Institute for Quantum Computing, University of Waterloo
Alán Aspuru-Guzik: Harvard University
Jonathan Baugh: Institute for Quantum Computing, University of Waterloo

Nature Communications, 2012, vol. 3, issue 1, 1-10

Abstract: Abstract Many problems of interest in physics, chemistry and computer science are equivalent to problems defined on systems of interacting spins. However, most such problems require computational resources that are out of reach with classical computers. A promising solution to overcome this challenge is quantum simulation. Several 'analogue' quantum simulations of interacting spin systems have been realized experimentally, where ground states were prepared using adiabatic techniques. Here we report a 'digital' quantum simulation of thermal states; a three-spin frustrated magnet was simulated using a nuclear magnetic resonance quantum information processor, and we were able to explore the phase diagram of the system at any simulated temperature and external field. These results help to identify the challenges for performing quantum simulations of physical systems at finite temperatures, and suggest methods that may be useful in simulating thermal open quantum systems.

Date: 2012
References: Add references at CitEc
Citations:

Downloads: (external link)
https://www.nature.com/articles/ncomms1860 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:3:y:2012:i:1:d:10.1038_ncomms1860

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/ncomms1860

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().