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Primeur weekly 2019-05-20

Quantum computing

D-Wave makes new lower-noise quantum processor available in Leap ...

Atos delivers world's highest-performing quantum simulator to multinational energy company Total ...

Digital quantum simulators can be astonishingly robust ...

Generating high-quality single photons for quantum computing ...

Quantum world-first: researchers reveal accuracy of two-qubit calculations in silicon ...

Accelerating quantum technologies with materials processing at the atomic scale ...

Focus on Europe

GCS grants more than 1 billion computing core hours to national large-scale research projects ...

GCS announces new Chair of the Board, Prof. Dr. Dieter Kranzlmüller ...

Applications to 19th PRACE Project Access Call ...

PRACE Awards @ EuroHPC Summit Week 2019 ...

ISC High Performance announce David Keyes as 2020 Programme Chair ...

National eScience Symposium 2019 to cover Digital Challenges in Open Science ...

Middleware

RedLine becomes Bright Computing Services Partner ...

eSilicon chooses Univa to manage complex ASIC chip designs for high-bandwidth networking, high-performance computing, AI and 5G infrastructure applications ...

Hardware

Boston Limited to officially launch operations in South Africa during a series of High-Performance Computing (HPC) events hosted by the Centre for High-Performance Computing (CHPC) ...

HPE to acquire supercomputing vendor Cray ...

China to build new national supercomputing centre ...

Mellanox Capital invests in storage experts Excelero and WekaIO ...

Mellanox introduces advanced Network Telemetry technology to keep your business up and running ...

Supermicro announces third quarter fiscal 2019 preliminary financial information and files 2017 form 10-K and form 10-Q/As ...

Atos launches the world's highest performing Edge Computing server ...

NVIDIA announces financial results for first quarter fiscal 2020 ...

NERSC's Edison supercomputer to retire after five years of service ...

WekaIO raises $31,7 million in Series C funding ...

Energy free superfast computing invented by scientists using light pulses ...

Applications

Atos launches myQLM to democratize quantum programming for researchers, students and developers worldwide ...

A step towards probabilistic computing ...

CosmoGAN: Training a neural network to study dark matter ...

New AI sees like a human, filling in the blanks ...

Energy free superfast computing invented by scientists using light pulses


Using ultrashort pulses of light enables extremely economical switching of a magnet from one stable orientation (red arrow) to another (white arrow). This concept enables ultrafast information storage with unprecedented energy efficiency. Credit: Brad Baxley - parttowhole.com.
14 May 2019 Lancaster - Superfast data processing using light pulses instead of electricity has been created by scientists. The invention uses magnets to record computer data which consume virtually zero energy, solving the dilemma of how to create faster data processing speeds without the accompanying high energy costs.

Today's data centre servers consume between 2 to 5% of global electricity consumption, producing heat which in turn requires more power to cool the servers.

The problem is so acute that Microsoft has even submerged hundreds of its data centre services in the ocean in an effort to keep them cool and cut costs.

Most data are encoded as binary information - 0 or 1 respectively - through the orientation of tiny magnets, called spins, in magnetic hard-drives. The magnetic read/write head is used to set or retrieve information using electrical currents which dissipate huge amounts of energy.

Now an international team publishing inNaturehas solved the problem by replacing electricity with extremely short pulses of light - the duration of one trillionth of a second - concentrated by special antennas on top of a magnet.

This new method is superfast but so energy efficient that the temperature of the magnet does not increase at all.

The team includes Dr. Rostislav Mikhaylovskiy, formerly at Radboud University and now Lancaster University, Stefan Schlauderer, Dr. Christoph Lange and Professor Rupert Huber from Regensburg University, Professor Alexey Kimel from Radboud University and Professor Anatoly Zvezdin from the Russian Academy of Sciences.

They demonstrated this new method by pulsing a magnet with ultrashort light bursts - the duration of a millionth of a millionth of a second - at frequencies in the far infrared, the so called terahertz spectral range.

However, even the strongest existing sources of the terahertz light did not provide strong enough pulses to switch the orientation of a magnet to date. The breakthrough was achieved by utilizing the efficient interaction mechanism of coupling between spins and terahertz electric field, which was discovered by the same team.

The scientists then developed and fabricated a very small antenna on top of the magnet to concentrate and thereby enhance the electric field of light. This strongest local electric field was sufficient to navigate the magnetization of the magnet to its new orientation in just one trillionth of a second.

The temperature of the magnet did not increase at all as this process requires energy of only one quantum of the terahertz light - a photon - per spin. Dr. Mikhaylovskiy stated: "The record-low energy loss makes this approach scalable. Future storage devices would also exploit the excellent spatial definition of antenna structures enabling practical magnetic memories with simultaneously maximal energy efficiency and speed."

He plans to carry out further research using the new ultrafast laser at Lancaster University together with accelerators at the Cockroft Institute which are able to generate intense pulses of light to allow switching magnets and to determine the practical and fundamental speed and energy limits of magnetic recording.

S. Schlauderer, C. Lange, S. Baierl, T. Ebnet, C. P. Schmid, D. C. Valovcin, A. K. Zvezdin, A. V. Kimel, R. V. Mikhaylovskiy, and R. Huber are the authors of the paper titled " Temporal and spectral fingerprint of ultrafast all-coherent spin switching ", published inNature(2019).
Source: Lancaster University

Back to Table of contents

Primeur weekly 2019-05-20

Quantum computing

D-Wave makes new lower-noise quantum processor available in Leap ...

Atos delivers world's highest-performing quantum simulator to multinational energy company Total ...

Digital quantum simulators can be astonishingly robust ...

Generating high-quality single photons for quantum computing ...

Quantum world-first: researchers reveal accuracy of two-qubit calculations in silicon ...

Accelerating quantum technologies with materials processing at the atomic scale ...

Focus on Europe

GCS grants more than 1 billion computing core hours to national large-scale research projects ...

GCS announces new Chair of the Board, Prof. Dr. Dieter Kranzlmüller ...

Applications to 19th PRACE Project Access Call ...

PRACE Awards @ EuroHPC Summit Week 2019 ...

ISC High Performance announce David Keyes as 2020 Programme Chair ...

National eScience Symposium 2019 to cover Digital Challenges in Open Science ...

Middleware

RedLine becomes Bright Computing Services Partner ...

eSilicon chooses Univa to manage complex ASIC chip designs for high-bandwidth networking, high-performance computing, AI and 5G infrastructure applications ...

Hardware

Boston Limited to officially launch operations in South Africa during a series of High-Performance Computing (HPC) events hosted by the Centre for High-Performance Computing (CHPC) ...

HPE to acquire supercomputing vendor Cray ...

China to build new national supercomputing centre ...

Mellanox Capital invests in storage experts Excelero and WekaIO ...

Mellanox introduces advanced Network Telemetry technology to keep your business up and running ...

Supermicro announces third quarter fiscal 2019 preliminary financial information and files 2017 form 10-K and form 10-Q/As ...

Atos launches the world's highest performing Edge Computing server ...

NVIDIA announces financial results for first quarter fiscal 2020 ...

NERSC's Edison supercomputer to retire after five years of service ...

WekaIO raises $31,7 million in Series C funding ...

Energy free superfast computing invented by scientists using light pulses ...

Applications

Atos launches myQLM to democratize quantum programming for researchers, students and developers worldwide ...

A step towards probabilistic computing ...

CosmoGAN: Training a neural network to study dark matter ...

New AI sees like a human, filling in the blanks ...