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Primeur weekly 2017-04-18

Quantum computing

QxBranch and Commonwealth Bank Australia launch quantum computing simulator ...

Indistinguishable photons key to advancing quantum technologies ...

Recent advances and new insights into quantum image processing ...

Focus on Europe

Teratec 2017 Forum issues Call for Participation ...

Hazel Hen helps explain ultrafast phase transition ...

Hardware

Engility to pursue NASA advanced computing services opportunity ...

DDN names Jessica Popp General Manager of IME business unit ...

Eni fires up its HPC3, the new hybrid high performance computer for E&P activities ...

DDN advances object storage performance and delivers industry's most flexible and cost-effective data protection ...

Asetek to receive RackCDU D2C order for new HPC installation ...

PSNC deploys ADVA Optical Networking 96-channel 100G core solution in pan-European research network ...

Putting a spin on logic gates ...

Tool for checking complex computer architectures reveals flaws in emerging design ...

System better allots network bandwidth, for faster page loads ...

Applications

SDSC to enhance campus research computing resources for bioinformatics ...

U.S. Department of Energy's INCITE programme seeks advanced computational research proposals for 2018 ...

Tutorials schedule announced for PEARC17 ...

Fujitsu awarded three prizes for science and technology from MEXT ...

Fujitsu and Grid partner to jointly develop AI services ...

IBM brings Anaconda Open Data Science platform to IBM Cognitive Systems ...

Jefferson Lab scientists eavesdrop on chatter of sub-atomic world ...

Buckle up - Climate change to increase severe aircraft turbulence ...

Beyond the frontiers of Supercomputing ...

Scientists develop a novel algorithm, inspired on the behaviour of bee colonies, which will help dismantling criminal social networks ...

The Cloud

Atos leads C2NET consortium - the first collaborative Cloud-based platform for SMEs to support manufacturing management ...

Comcast Business now provides enterprises with dedicated links to IBM Cloud ...

Nimbix ushers in next-generation GPUs for Cloud-based deep learning ...

USFlash

Group works toward devising topological superconductor ...

Stanford researchers create deep learning algorithm that could boost drug development ...

Biased bots: Human prejudices sneak into artificial intelligence systems ...

Group works toward devising topological superconductor

This is a schematic of an interpocket paired state, one of two topological superconducting states proposed in the latest work from the lab of Eun-Ah Kim, associate professor of physics at Cornell University. The material used is a monolayer transition metal dichalcogenide. Credit: Eun-Ah Kim, Cornell University11 Apr 2017 Ithaca - The experimental realization of ultrathin graphene - which earned two scientists from Manchester, United Kingdom the Nobel Prize in physics in 2010 - has ushered in a new age in materials research.

What started with graphene has evolved to include numerous related single-atom-thick materials, which have unusual properties due to their ultra-thinness. Among them are transition metal dichalcogenides (TMDs), materials that offer several key features not available in graphene and are emerging as next-generation semiconductors.

TMDs could realize topological superconductivity and thus provide a platform for quantum computing - the ultimate goal of a Cornell research group led by Eun-Ah Kim, associate professor of physics.

"Our proposal is very realistic - that's why it's exciting", Eun-Ah Kim stated of her group's research. "We have a theoretical strategy to materialize a topological superconductor and that will be a step toward building a quantum computer. The history of superconductivity over the last 100 years has been led by accidental discoveries. We have a proposal that's sitting on firm principles. Instead of hoping for a new material that has the properties you want", she stated, "let's go after it with insight and design principle."

Yi-Ting Hsu, a doctoral student in the Eun-Ah Kim Group, is lead author of " Topological superconductivity in monolayer transition metal dichalcogenides ", published April 11 inNature Communications. Other team members include Eun-Ah Kim Group alumni Mark Fischer, now at ETH Zurich in Switzerland, and Abolhassan Vaezi, now at Stanford University.

The group's proposal: The TMDs' unusual properties favor two topological superconducting states, which, if experimentally confirmed, will open up possibilities for manipulating topological superconductors at temperatures near absolute zero.

Kim identified hole-doped (positive charge-enhanced) single-layer TMDs as a promising candidate for topological superconductivity, based on the known special locking between spin state and kinetic energy of electrons (spin-valley locking) of single-layer TMDs, as well as the recent observations of superconductivity in electron-doped (negative charge-enhanced) single-layer TMDs.

The group's goal is a superconductor that operates at around 1 Kelvin (approximately minus 457 Fahrenheit), that could be cooled with liquid helium sufficiently to maintain quantum computing potential in a superconducting state.

Theoretically, housing a quantum computer powerful enough to justify the power needed to keep the superconductor at 1 Kelvin is not out of the question, Kim said. In fact, IBM already has a 7-qubit (quantum bit) computer, which operates at less than 1 Kelvin, available to the public through its IBM Quantum Experience.

A quantum computer with approximately six times more qubits would fundamentally change computing, Eun-Ah Kim said.

"If you get to 40 qubits, that computing power will exceed any classical computers out there", she stated. "And to house a 40-qubit quantum computer in cryogenic temperature is not that big a deal. It will be a revolution."

Eun-Ah Kim and her group are working with Debdeep Jena and Grace Xing of electrical and computer engineering, and Katja Nowack of physics, through an interdisciplinary research group seed grant from the Cornell Center for Materials Research. Each group brings researchers from different departments together, with support from both the university and the National Science Foundation's Materials Research Science and Engineering Centers programme.

"We're combining the engineering expertise of DJ and Grace, and expertise Katja has in mesoscopic systems and superconductors", Eun-Ah Kim stated. "It requires different expertise to come together to pursue this, and CCMR allows that."

This work was also supported in part by the NSF's Platform for the Accelerated Realization, Analysis, and Discovery of Interface Materials (PARADIM) programme.
Source: Cornell University

Back to Table of contents

Primeur weekly 2017-04-18

Quantum computing

QxBranch and Commonwealth Bank Australia launch quantum computing simulator ...

Indistinguishable photons key to advancing quantum technologies ...

Recent advances and new insights into quantum image processing ...

Focus on Europe

Teratec 2017 Forum issues Call for Participation ...

Hazel Hen helps explain ultrafast phase transition ...

Hardware

Engility to pursue NASA advanced computing services opportunity ...

DDN names Jessica Popp General Manager of IME business unit ...

Eni fires up its HPC3, the new hybrid high performance computer for E&P activities ...

DDN advances object storage performance and delivers industry's most flexible and cost-effective data protection ...

Asetek to receive RackCDU D2C order for new HPC installation ...

PSNC deploys ADVA Optical Networking 96-channel 100G core solution in pan-European research network ...

Putting a spin on logic gates ...

Tool for checking complex computer architectures reveals flaws in emerging design ...

System better allots network bandwidth, for faster page loads ...

Applications

SDSC to enhance campus research computing resources for bioinformatics ...

U.S. Department of Energy's INCITE programme seeks advanced computational research proposals for 2018 ...

Tutorials schedule announced for PEARC17 ...

Fujitsu awarded three prizes for science and technology from MEXT ...

Fujitsu and Grid partner to jointly develop AI services ...

IBM brings Anaconda Open Data Science platform to IBM Cognitive Systems ...

Jefferson Lab scientists eavesdrop on chatter of sub-atomic world ...

Buckle up - Climate change to increase severe aircraft turbulence ...

Beyond the frontiers of Supercomputing ...

Scientists develop a novel algorithm, inspired on the behaviour of bee colonies, which will help dismantling criminal social networks ...

The Cloud

Atos leads C2NET consortium - the first collaborative Cloud-based platform for SMEs to support manufacturing management ...

Comcast Business now provides enterprises with dedicated links to IBM Cloud ...

Nimbix ushers in next-generation GPUs for Cloud-based deep learning ...

USFlash

Group works toward devising topological superconductor ...

Stanford researchers create deep learning algorithm that could boost drug development ...

Biased bots: Human prejudices sneak into artificial intelligence systems ...