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Primeur weekly 2017-12-04

Quantum computing

Simulating physics ...

Key component for quantum computing invented ...

Quantum-emitting answer might lie in the solution ...

Quantum systems correct themselves ...

NCSA SPIN intern Daniel Johnson published in Classical and Quantum Gravity ...

Focus on Europe

9th Irish Supercomputer List published ...

Gap between research and industry HPC in Ireland widens ...

SURFsara extends its status as Intel Parallel Computing Center for 2018 ...

EXDCI issues Call for Workshops for the European HPC Summit Week 2018 ...

Hardware

Supermicro introduces next-generation storage form factor with new Intel "Ruler" all-flash NVMe 1U server and JBOF ...

New director named at Los Alamos National Laboratory ...

AccelStor empowers all-flash array to advance genomics data analysis ...

New Storage 2020 report outlines vision for future HPC storage ...

Loci adds William Schrader, former PSINet Inc. CEO, to Advisory Board ...

Shantenu Jha named Chair of Brookhaven Lab's Center for Data-Driven Discovery ...

Applications

ORNL-designed algorithm leverages Titan to create high-performing deep neural networks ...

Drought-resistant plant genes could accelerate evolution of water-use efficient crops ...

HPE partners with Stephen Hawking's COSMOS Research Group and the Cambridge Faculty of Mathematics ...

Monopole current offers way to control magnets ...

70Gb/s optical intra-connects in data centers based on band-limited devices ...

Lobachevsky University scientists in search of fast algorithms for discrete optimization ...

High-Performance Computing cuts particle collision data prep time ...

TOP500

High performance computer MOGON II at the Johannes Gutenberg-Universität Mainz among the 100 fastest supercomputers in the world ...

The Cloud

HPE unveils industryis first SaaS-based multi-Cloud management solution for on-premises and public Clouds ...

AccelStor revs up NeoSapphire all-flash array portfolio for next generation Cloud application ...

Quantum systems correct themselves


Quantum theorist Christine Muschik
28 Nov 2017 Innsbruck - Quantum devices allow us to accomplish computing and sensing tasks that go beyond the capabilities of their classical counterparts. However, protecting quantum information from being corrupted by errors is difficult.

An international team of researchers from Innsbruck, Harvard, Copenhagen and Waterloo put forward a new method to protect quantum information stored in trapped ions. In their new proposal, the authors use dissipation - i.e. the interaction of a quantum system with its environment - to correct quantum states. Dissipation is typically considered harmful, but as demonstrated by Florentin Reiter and colleagues, it can be tweaked to work in a quantum engineer's favour.

Standard quantum error correction schemes are performed by applying a sequence of gates in a logical quantum circuit and rely on measurements by classical devices. The new dissipative approach does not require a logical circuit and dispenses also with measurements. "The whole error correcting process happens autonomously at the microscopic level, such that quantum systems can correct themselves", stated co-author Christine Muschik, of the Department of Theoretical Physics at the University of Innsbruck and the Institute of Quantum Optics and Quantum Information at the Austrian Academy of Sciences.

The new approach has important practical applications for high-precision measurements. "We showed how the new dissipative correction mechanism can be used to enhance the precision for sensing weak magnetic fields", Christine Muschik stated. These results open new avenues for improving high-precision sensing schemes with trapped ions and constitute a stepping stone towards the paradigm of self-correcting quantum information processing.

The paper titled "Dissipative Quantum Error Correction and Application to Quantum Sensing with Trapped Ions" is authored by F. Reiter, A. Sørensen, P. Zoller, and C. Muschik and published inNature Communications2017 - DOI: 10.1038/s41467-017-01895-5.

Source: University of Innsbruck

Back to Table of contents

Primeur weekly 2017-12-04

Quantum computing

Simulating physics ...

Key component for quantum computing invented ...

Quantum-emitting answer might lie in the solution ...

Quantum systems correct themselves ...

NCSA SPIN intern Daniel Johnson published in Classical and Quantum Gravity ...

Focus on Europe

9th Irish Supercomputer List published ...

Gap between research and industry HPC in Ireland widens ...

SURFsara extends its status as Intel Parallel Computing Center for 2018 ...

EXDCI issues Call for Workshops for the European HPC Summit Week 2018 ...

Hardware

Supermicro introduces next-generation storage form factor with new Intel "Ruler" all-flash NVMe 1U server and JBOF ...

New director named at Los Alamos National Laboratory ...

AccelStor empowers all-flash array to advance genomics data analysis ...

New Storage 2020 report outlines vision for future HPC storage ...

Loci adds William Schrader, former PSINet Inc. CEO, to Advisory Board ...

Shantenu Jha named Chair of Brookhaven Lab's Center for Data-Driven Discovery ...

Applications

ORNL-designed algorithm leverages Titan to create high-performing deep neural networks ...

Drought-resistant plant genes could accelerate evolution of water-use efficient crops ...

HPE partners with Stephen Hawking's COSMOS Research Group and the Cambridge Faculty of Mathematics ...

Monopole current offers way to control magnets ...

70Gb/s optical intra-connects in data centers based on band-limited devices ...

Lobachevsky University scientists in search of fast algorithms for discrete optimization ...

High-Performance Computing cuts particle collision data prep time ...

TOP500

High performance computer MOGON II at the Johannes Gutenberg-Universität Mainz among the 100 fastest supercomputers in the world ...

The Cloud

HPE unveils industryis first SaaS-based multi-Cloud management solution for on-premises and public Clouds ...

AccelStor revs up NeoSapphire all-flash array portfolio for next generation Cloud application ...