Back to Table of contents

Primeur weekly 2015-12-07

Quantum computing

A quantum spin on molecular computers ...

Researchers confirm 'realistic' answer to quantum network puzzle ...

Focus on Europe

ISC 2016 introduces PhD Forum and extends deadline for research papers ...

Quantum computer made of standard semiconductor materials ...

Future direction of global research and e-infrastructures landscape in e-IRG/ESFRI organized network session at ICT2015 in Lisbon ...

EGI-UberCloud partnership is bridging research and innovation ...

Finnish ministry issues policy on future development of scientific computing ...

HPC Advisory Council and the ISC High Performance Conference announce university teams for HPCAC-ISC 2016 Student Cluster Competition ...

GEANT agrees new Board, community programme and cost sharing model ...

Spanish Council of Ministers supports the acquisition of MareNostrum 4 ...

NEC's SX-ACE vector supercomputer contributes to research at three German institutes - University of Kiel, Alfred Wegener Institute and the High Performance Computing Center Stuttgart ...

Middleware

TACC's HPC team works to increase technical diversity in supercomputing ...

Hardware

Mellanox promotes Freddy Gabbay to Vice President of Software ...

SanDisk and Supermicro form strategic alliance to deliver software defined all-flash storage solutions ...

Seagate and Newisys demonstrate flash storage architecture capable Of 1TB/s ...

Hewlett Packard Enterprise introduces new class of system to power next era in hybrid infrastructure ...

Applications

Sequoia supercomputer enables Gordon Bell Prize-winning simulation on Earth's mantle ...

Unveiling the turbulent times of a dying star ...

Missing link found between turbulence in collapsing star and hypernova, gamma-ray burst ...

New insights into the creation of heavy elements ...

Manipal Hospitals adopts Watson for Oncology to help physicians identify options for individualized, evidence-based cancer care across India ...

TOP500

Liquid immersion cooling from Green Revolution Cooling helps Tokyo Institute of Technology achieve top honours at Green500 three years in a row ...

The Cloud

Univa announces support for Microsoft Azure ...

Hewlett Packard Enterprise and Microsoft announce plans to deliver integrated hybrid IT infrastructure ...

IBM advances hybrid capabilities to China and unveils Bluemix Local ...

A quantum spin on molecular computers


One day powerful quantum computers could be made from molecules like these - vanadium complexes. Credit: American Chemical Society
2 Dec 2015 Washington D.C. - If quantum computers existed, they would revolutionize computing as we know it. Based on fundamental properties of matter, the potential power of these theoretical workhorses would solve problems in a new way, cracking extremely complex spy codes and precisely modeling chemical systems in a snap. InACS Central Science, researchers create cleverly designed molecules to get one step closer to this goal.

Traditional computers rely on transistors that occupy one of two states - that's what those archetypal zeroes and ones refer to, and each digit is a "bit". Quantum computing would use three states, improving its information storage capacity exponentially. Whereas a small app like "Angry Birds" takes up about 40,000 standard bits, a computer made with just 1,000 quantum bits, or "qubits", could easily and quickly break modern encryption schemes or more precisely model how a pharmaceutical drug candidate would perform in a person.

The biggest challenge of quantum computing, however, is making the qubit. Some of the most promising qubits today use electrons, specifically their "spin" state. Spin can have two states, just like a bit, but also a combination of both to form a third state, called "superposition". But very few molecules stay in the superposition state long enough to measure, which makes them difficult to use in computing. One reason is that the interaction of spins on most nuclei can interfere with the electronic ones. To get closer to a real, functional qubit, Danna Freedman and colleagues turned to metal complexes, where most of those problematic nuclear spins were eliminated.

Danna Freedman and colleagues synthesized vanadium complexes with arms made of carbon and sulfur. As long as the system was kept cold, these molecules kept superposition longer than any metal complexes previously reported. They also kept that state for just as long as other bulk materials currently under consideration. These new molecules show that under the right conditions, inorganic complexes can function as viable qubits. In addition, the complexes may prove to be superior to other potential materials because their defined chemical structure could more easily allow the organized design of functional devices. To get a little meta: it's possible that one day computers made of just a handful of small molecules will be used to make predictions about other molecules.

The paper is freely available at http://pubs.acs.org/doi/full/10.1021/acscentsci.5b00338 .
Source: American Chemical Society

Back to Table of contents

Primeur weekly 2015-12-07

Quantum computing

A quantum spin on molecular computers ...

Researchers confirm 'realistic' answer to quantum network puzzle ...

Focus on Europe

ISC 2016 introduces PhD Forum and extends deadline for research papers ...

Quantum computer made of standard semiconductor materials ...

Future direction of global research and e-infrastructures landscape in e-IRG/ESFRI organized network session at ICT2015 in Lisbon ...

EGI-UberCloud partnership is bridging research and innovation ...

Finnish ministry issues policy on future development of scientific computing ...

HPC Advisory Council and the ISC High Performance Conference announce university teams for HPCAC-ISC 2016 Student Cluster Competition ...

GEANT agrees new Board, community programme and cost sharing model ...

Spanish Council of Ministers supports the acquisition of MareNostrum 4 ...

NEC's SX-ACE vector supercomputer contributes to research at three German institutes - University of Kiel, Alfred Wegener Institute and the High Performance Computing Center Stuttgart ...

Middleware

TACC's HPC team works to increase technical diversity in supercomputing ...

Hardware

Mellanox promotes Freddy Gabbay to Vice President of Software ...

SanDisk and Supermicro form strategic alliance to deliver software defined all-flash storage solutions ...

Seagate and Newisys demonstrate flash storage architecture capable Of 1TB/s ...

Hewlett Packard Enterprise introduces new class of system to power next era in hybrid infrastructure ...

Applications

Sequoia supercomputer enables Gordon Bell Prize-winning simulation on Earth's mantle ...

Unveiling the turbulent times of a dying star ...

Missing link found between turbulence in collapsing star and hypernova, gamma-ray burst ...

New insights into the creation of heavy elements ...

Manipal Hospitals adopts Watson for Oncology to help physicians identify options for individualized, evidence-based cancer care across India ...

TOP500

Liquid immersion cooling from Green Revolution Cooling helps Tokyo Institute of Technology achieve top honours at Green500 three years in a row ...

The Cloud

Univa announces support for Microsoft Azure ...

Hewlett Packard Enterprise and Microsoft announce plans to deliver integrated hybrid IT infrastructure ...

IBM advances hybrid capabilities to China and unveils Bluemix Local ...