Nanotechnology Now

Our NanoNews Digest Sponsors
Heifer International

Wikipedia Affiliate Button

Home > Press > Virginia Tech researchers lead breakthrough in quantum computing

Nick Mayhall, Sophia Economou, and Ed Barnes, all of the Virginia Tech College of Science.

CREDIT
Virginia Tech
Nick Mayhall, Sophia Economou, and Ed Barnes, all of the Virginia Tech College of Science. CREDIT Virginia Tech

Abstract:
The large, error-correcting quantum computers envisioned today could be decades away, yet experts are vigorously trying to come up with ways to use existing and near-term quantum processors to solve useful problems despite limitations due to errors or "noise."

Virginia Tech researchers lead breakthrough in quantum computing

Blacksburg, VA | Posted on July 26th, 2019

A key envisioned use is simulating molecular properties. In the long run, this can lead to advances in materials improvement and drug discovery. But not with noisy calculations confusing the results.

Now, a team of Virginia Tech chemistry and physics researchers have advanced quantum simulation by devising an algorithm that can more efficiently calculate the properties of molecules on a noisy quantum computer. Virginia Tech College of Science faculty members Ed Barnes, Sophia Economou, and Nick Mayhall recently published a paper in Nature Communications detailing the advancement.

Quantum computers are expected to be able to carry out certain kinds of calculations far more efficiently than the "classical" computers in use today. They are similar to classical computers, however, in that they run algorithms by applying sequences of logic gates -- in this case, "quantum gates," which together form quantum circuits -- to bits of information. For today's noisy quantum computers, the problem has been that so much noise would accumulate within a circuit that the computation would degrade and render any subsequent calculations inaccurate. Scientists have had difficulty designing circuits that are both shorter and more accurate.

The Virginia Tech team addressed this issue by developing a method that grows the circuit in an iterative way. "We start with a minimal circuit, then grow it as we add on logic gate after logic gate in short circuits until the computer finds the solution," said Mayhall, an assistant professor in the Department of Chemistry.

A second major benefit of the algorithm is that Barnes, Economou, and Mayhall designed it to adapt itself based upon the molecular system being simulated. Different molecules will dictate their own circuits, uniquely tailored to them.

The interdisciplinary collaboration between Virginia Tech's departments of Chemistry and Physics -- Barnes, Economou, and Mayhall and a team of graduate students and postdocs from both departments -- have received grants from the National Science Foundation and the U.S. Department of Energy totaling more than $2.8 million.

Virginia Tech and IBM recently established a partnership that gives the researchers access to IBM's quantum computing hardware. "Our team at Virginia Tech is really excited for the next steps in our work," said Economou, an associate professor in the Department of Physics, "which include implementing our algorithm on IBM's processors."

####

For more information, please click here

Contacts:
Lon Wagner

540-231-6468

Copyright © Virginia Tech

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related Links

RELATED JOURNAL ARTICLE:

Related News Press

News and information

Cyborg heart could help scientists better understand the human organ August 21st, 2019

Research brief: A novel cellular process to engulf nano-sized materials August 20th, 2019

A first for cancer research’: New approach to study tumors August 20th, 2019

Stanford builds a heat shield just 10 atoms thick to protect electronic devices: Atomically thin heat shields could be up to 50,000 times thinner than current insulating materials in cell phones and laptops August 19th, 2019

Possible Futures

Cyborg heart could help scientists better understand the human organ August 21st, 2019

Research brief: A novel cellular process to engulf nano-sized materials August 20th, 2019

A first for cancer research’: New approach to study tumors August 20th, 2019

Stanford builds a heat shield just 10 atoms thick to protect electronic devices: Atomically thin heat shields could be up to 50,000 times thinner than current insulating materials in cell phones and laptops August 19th, 2019

Quantum Computing

RIT to upgrade Semiconductor and Microsystems Fabrication Laboratory through $1 million state grant: Upgrades to clean room will enhance university’s research capabilities in photonics, quantum technologies and smart systems August 16th, 2019

Sharp meets flat in tunable 2D material: Rice's new atom-flat compounds show promise for optoelectronics, advanced computing August 12th, 2019

RIT awarded NSF funding to conceptualize Quantum Photonic Institute: RIT will develop plan for open-access Quantum Foundry for quantum photonic circuits August 7th, 2019

A graphene superconductor that plays more than one tune: Researchers at Berkeley Lab have developed a tiny toolkit for scientists to study exotic quantum physics July 19th, 2019

Discoveries

Cyborg heart could help scientists better understand the human organ August 21st, 2019

Research brief: A novel cellular process to engulf nano-sized materials August 20th, 2019

A first for cancer research’: New approach to study tumors August 20th, 2019

Stanford builds a heat shield just 10 atoms thick to protect electronic devices: Atomically thin heat shields could be up to 50,000 times thinner than current insulating materials in cell phones and laptops August 19th, 2019

Announcements

Cyborg heart could help scientists better understand the human organ August 21st, 2019

Research brief: A novel cellular process to engulf nano-sized materials August 20th, 2019

A first for cancer research’: New approach to study tumors August 20th, 2019

Stanford builds a heat shield just 10 atoms thick to protect electronic devices: Atomically thin heat shields could be up to 50,000 times thinner than current insulating materials in cell phones and laptops August 19th, 2019

Interviews/Book Reviews/Essays/Reports/Podcasts/Journals/White papers

Cyborg heart could help scientists better understand the human organ August 21st, 2019

Research brief: A novel cellular process to engulf nano-sized materials August 20th, 2019

A first for cancer research’: New approach to study tumors August 20th, 2019

Stanford builds a heat shield just 10 atoms thick to protect electronic devices: Atomically thin heat shields could be up to 50,000 times thinner than current insulating materials in cell phones and laptops August 19th, 2019

NanoNews-Digest
The latest news from around the world, FREE



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project