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Primeur weekly 2011-10-10

The Cloud

Timing is right for SDSC Cloud ...

SARA and BiG Grid make HPC Cloud infrastructure available ...

Oracle unveils Oracle Public Cloud ...

Oracle Fusion Middleware 11g delivers world record dual-node result with SPECjEnterprise2010 benchmark on Cisco Unified Computing System B440 M2 server ...

Oracle optimizes integration between Oracle applications and Oracle Exadata Database Machine and Oracle Exalogic Elastic Cloud ...

Fujitsu launches Cloud Productivity Suite ...

HP acquires control of Autonomy Corporation plc ...

Minister Bruton launches European Cloud Computing Conference in Dublin - DCU and EIURA bring next generation of Cloud computing to Dublin ...

Oracle unveils Oracle Process Accelerators for Oracle Business Process Management Suite 11g ...

Oracle unveils Oracle Fusion CRM in the Cloud ...

HP powers expansion for China's Range Technology ...

HP and SAP accelerate Cloud deployments for clients ...

Bull UK and Ireland shows how bullion server can help guide customers on their journey to the Clouds ...

Adobe unveils Creative Cloud ...

EMC unveils new Proven Solution and best practices for Oracle ...

Emerson Network Power selects Oracle Fusion Middleware to enable its data centre infrastructure management solution ...

Saving energy with the 'Internet of Things' ...

EuroFlash

Hungarian National Information Infrastructure Development (NIIF) Institute selects SGI to power advanced scientific research ...

Bull and Acceleware announce partnership to deliver a unified hardware-to-software experience ...

New project to tackle data deluge: EUDAT - Towards a pan-European Collaborative Data Infrastructure ...

Exotic quantum states: a new research approach ...

USFlash

Simulations unlock carbon nanotube potential for industry ...

New UNIX-based laboratory aids University of Wyoming-NCAR relationship ...

Oracle unveils the Oracle Big Data Appliance ...

Oracle announces industry's first engineered system for Extreme Analytics ...

Oracle Executive Vice President John Fowler spotlights Oracle's Engineered Systems ...

Oracle extends the Oracle Exastack Programme with availability of Oracle Exastack Optimized, Oracle Exadata Ready and Oracle Exalogic Ready ...

Oracle unveils Oracle Enterprise Manager 12c ...

Bold approach could change electronics industry ...

Livermore computer scientist Greg Bronevetsky receives Presidential Early Career Award ...

New 'FeTRAM' is promising computer memory technology ...

Fortune Global 200 CIO joins Advisory Board of DataDirect Networks ...

EMC and NEC set high-end scalability record ...

Exotic quantum states: a new research approach

3 Oct 2011 Innsbruck - Theoretical physicists of the University of Innsbruck have formulated a new concept to engineer exotic, so-called topological states of matter in quantum mechanical many-body systems. They linked concepts of quantum optics and condensed matter physics and show a direction to build a quantum computer which is immune against perturbations. The scientists have published their work in the journalNature Physics.

Three years ago a research team led by Sebastian Diehl and Peter Zoller presented a completely new approach to engineer quantum states in many-body systems. They used a physical phenomenon that normally increases the degree of disorder in a system dramatically: dissipation. In classical physics dissipation is the concept that explains the production of heat through friction. Surprisingly, in quantum physics dissipation can also lead to order and a completely pure many-body state can be realized.

This spring an Innsbruck research team, led by experimental physicist Rainer Blatt, demonstrated experimentally that by using dissipation certain quantum effects can be generated and intensified. By linking concepts of quantum optics and condensed matter physics, theoretical physicists from the Institute of Theoretical Physics of the University of Innsbruck and the Institute for Quantum Optics and Quantum Information of the Austrian Academy of Sciences have now pointed out a new direction of how dissipation may be used in another beneficial and promising way.

In condensed matter physics a new concept to describe order in many-body systems has gained in importance recently: topological order. Two examples for topological phenomena are the quantum Hall effect, which was demonstrated in the 1980s, and the topological insulator, which behaves as an electrical insulator in its interior while permitting the transport of charges on its surface. Sebastian Diehl and Peter Zoller's team of theoretical physicists now suggest realizing dissipation induced Majorana fermions in a quantum system. This topological phenomenon was named after the Italian physicist Ettore Majorana and describes particles that are their own anti-particles.

"We show a new way of how Majorana fermions may be created in a controlled way in a quantum system", explained Sebastian Diehl. "For this purpose we use a dissipative dynamic that drives the system into this state in a targeted way and compels it back when affected by disturbances." With this new approach Sebastian Diehl and his team combine the advantages of dissipation and topological order - both concepts are highly robust against perturbations such as disorder. Therefore, their suggestion to create Majorana fermions in an atomic quantum wire is of high interest for experimental implementation. It may be used for building a quantum computer whose basic building blocks consist of Majorana fermions. In quantum wires atoms are confined to one-dimensional structures by optical lattices which are generated by laser beams: Majorana fermions are then generated at both ends of the atomic chain.

START awardee Sebastian Diehl and his research group have linked the knowledge of condensed matter physics and quantum mechanics. "We work at the interface between those two disciplines, which creates exciting new possibilities", stated Sebastian Diehl. First though, they had to prove beyond all doubt that the concept of topological order can be transferred to a dissipative context at all. "We were able to tick off all points on the topological checklist and show that its prerequisites are also valid in a system with dissipative dynamics." The physicists have published the mathematical proof of this new approach in the journalNature Physics.
Source: University of Innsbruck

Back to Table of contents

Primeur weekly 2011-10-10

The Cloud

Timing is right for SDSC Cloud ...

SARA and BiG Grid make HPC Cloud infrastructure available ...

Oracle unveils Oracle Public Cloud ...

Oracle Fusion Middleware 11g delivers world record dual-node result with SPECjEnterprise2010 benchmark on Cisco Unified Computing System B440 M2 server ...

Oracle optimizes integration between Oracle applications and Oracle Exadata Database Machine and Oracle Exalogic Elastic Cloud ...

Fujitsu launches Cloud Productivity Suite ...

HP acquires control of Autonomy Corporation plc ...

Minister Bruton launches European Cloud Computing Conference in Dublin - DCU and EIURA bring next generation of Cloud computing to Dublin ...

Oracle unveils Oracle Process Accelerators for Oracle Business Process Management Suite 11g ...

Oracle unveils Oracle Fusion CRM in the Cloud ...

HP powers expansion for China's Range Technology ...

HP and SAP accelerate Cloud deployments for clients ...

Bull UK and Ireland shows how bullion server can help guide customers on their journey to the Clouds ...

Adobe unveils Creative Cloud ...

EMC unveils new Proven Solution and best practices for Oracle ...

Emerson Network Power selects Oracle Fusion Middleware to enable its data centre infrastructure management solution ...

Saving energy with the 'Internet of Things' ...

EuroFlash

Hungarian National Information Infrastructure Development (NIIF) Institute selects SGI to power advanced scientific research ...

Bull and Acceleware announce partnership to deliver a unified hardware-to-software experience ...

New project to tackle data deluge: EUDAT - Towards a pan-European Collaborative Data Infrastructure ...

Exotic quantum states: a new research approach ...

USFlash

Simulations unlock carbon nanotube potential for industry ...

New UNIX-based laboratory aids University of Wyoming-NCAR relationship ...

Oracle unveils the Oracle Big Data Appliance ...

Oracle announces industry's first engineered system for Extreme Analytics ...

Oracle Executive Vice President John Fowler spotlights Oracle's Engineered Systems ...

Oracle extends the Oracle Exastack Programme with availability of Oracle Exastack Optimized, Oracle Exadata Ready and Oracle Exalogic Ready ...

Oracle unveils Oracle Enterprise Manager 12c ...

Bold approach could change electronics industry ...

Livermore computer scientist Greg Bronevetsky receives Presidential Early Career Award ...

New 'FeTRAM' is promising computer memory technology ...

Fortune Global 200 CIO joins Advisory Board of DataDirect Networks ...

EMC and NEC set high-end scalability record ...