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Primeur weekly 2019-05-13

Exascale supercomputing

AMD EPYC CPUs, AMD Radeon Instinct GPUs and ROCm Open Source software to power world's fastest supercomputer at Oak Ridge National Laboratory ...

U.S. Department of Energy and Cray to deliver record-setting Frontier supercomputer at ORNL ...

Cray pursues advanced research with DOE for exascale systems ...

CAAR accepting application team proposals for Frontier system ...

Quantum computing

Computing faster with quasi-particles ...

Quantum computing with graphene plasmons ...

Focus on Europe

ELIXIR and GA4GH expand collaboration ...

Netherlands eScience Center labeled "Center of Excellence" by international review committee ...

HPC stakeholders in Europe get together at EuroHPC Summit Week 2019 ...

Middleware

DDN announces intent to acquire Nexenta, a market expert in Software-Defined Storage for 5G and IoT ...

Hardware

Austria's Central Institution for Meteorology and Geodynamics improves weather nowcasting with Cray AI solutions ...

Cray reports first quarter 2019 financial results ...

CoolIT Systems announces liquid cooling solution for Intel Server System S9200WK ...

Hewlett Packard Enterprise integrates BlueData to accelerate Artificial Intelligence and data-driven innovation in the enterprise ...

Intel previews design innovation: 10nm CPU ships in June and 7nm product in 2021 ...

WekaIO Matrix selected by Mellanox Technologies to accelerate EDA workloads ...

Applications

King's College London and NVIDIA build UK's first AI platform for NHS hospitals ...

Quantum sensor for photons ...

Comet-enabled simulations showcase black holes and their magnetic bubbles ...

Ultra-secure form of virtual money proposed ...

Shaping the future of finance with HPC ...

NCSA scientist employs supercomputer simulations in Ohio gerrymandering case ...

Superfacility framework advances photosynthesis research ...

The Cloud

Supermicro introduces open private Cloud solutions based on new Red Hat Enterprise Linux 8 ...

NetApp powers data-driven organisations to succeed ...

Quantum sensor for photons


An ion between two spherical mirrors serves as a quantum sensor for light particles. Illustration: Klemens Schüppert.
3 May 2019 Innsbruck - A photodetector converts light into an electrical signal, causing the light to be lost. Researchers led by Tracy Northup at the University of Innsbruck have now built a quantum sensor that can measure light particles non-destructively. It can be used to further investigate the quantum properties of light.

Physicist Tracy Northup is currently researching the development of quantum internet at the University of Innsbruck. The American citizen builds interfaces with which quantum information can be transferred from matter to light and vice versa. Over such interfaces, it is anticipated that quantum computers all over the world will be able to communicate with each other via fiber optic lines in the future. In their research, Tracy Northup and her team at the Department of Experimental Physics have now demonstrated a method with which visible light can be measured non-destructively. The development follows the work of Serge Haroche, who characterized the quantum properties of microwave fields with the help of neutral atoms in the 1990s and was awarded the Nobel Prize in Physics in 2012.

In work led by postdoc Moonjoo Lee and PhD student Konstantin Friebe, the researchers place an ionized calcium atom between two hollow mirrors through which visible laser light is guided. "The ion has only a weak influence on the light", explained Tracy Northup. "Quantum measurements of the ion allow us to make statistical predictions about the number of light particles in the chamber." The physicists were supported in their interpretation of the measurement results by the research group led by Helmut Ritsch, a Innsbruck quantum optician from the Department of Theoretical Physics. "One can speak in this context of a quantum sensor for light particles", summed up Tracy Northup, who has held an Ingeborg Hochmair professorship at the University of Innsbruck since 2017. One application of the new method would be to generate special tailored light fields by feeding the measurement results back into the system via a feedback loop, thus establishing the desired states.

In the current work inPhysical Review Letters, the researchers have limited themselves to classical states. In the future, this method could also be used to measure quantum states of light. The work was financially supported by the Austrian Science Fund FWF and the European Union, among others.

The paper titled " Ion-based nondestructive sensor for cavity photon numbers " was authored by Moonjoo Lee, Konstantin Friebe, Dario A. Fioretto, Klemens Schüppert, Florian R. Ong, David Plankensteiner, Valentin Torggler, Helmut Ritsch, Rainer Blatt, and Tracy E. Northup. It has been published inPhysical Review Letters122, 153603.

Source: University of Innsbruck

Back to Table of contents

Primeur weekly 2019-05-13

Exascale supercomputing

AMD EPYC CPUs, AMD Radeon Instinct GPUs and ROCm Open Source software to power world's fastest supercomputer at Oak Ridge National Laboratory ...

U.S. Department of Energy and Cray to deliver record-setting Frontier supercomputer at ORNL ...

Cray pursues advanced research with DOE for exascale systems ...

CAAR accepting application team proposals for Frontier system ...

Quantum computing

Computing faster with quasi-particles ...

Quantum computing with graphene plasmons ...

Focus on Europe

ELIXIR and GA4GH expand collaboration ...

Netherlands eScience Center labeled "Center of Excellence" by international review committee ...

HPC stakeholders in Europe get together at EuroHPC Summit Week 2019 ...

Middleware

DDN announces intent to acquire Nexenta, a market expert in Software-Defined Storage for 5G and IoT ...

Hardware

Austria's Central Institution for Meteorology and Geodynamics improves weather nowcasting with Cray AI solutions ...

Cray reports first quarter 2019 financial results ...

CoolIT Systems announces liquid cooling solution for Intel Server System S9200WK ...

Hewlett Packard Enterprise integrates BlueData to accelerate Artificial Intelligence and data-driven innovation in the enterprise ...

Intel previews design innovation: 10nm CPU ships in June and 7nm product in 2021 ...

WekaIO Matrix selected by Mellanox Technologies to accelerate EDA workloads ...

Applications

King's College London and NVIDIA build UK's first AI platform for NHS hospitals ...

Quantum sensor for photons ...

Comet-enabled simulations showcase black holes and their magnetic bubbles ...

Ultra-secure form of virtual money proposed ...

Shaping the future of finance with HPC ...

NCSA scientist employs supercomputer simulations in Ohio gerrymandering case ...

Superfacility framework advances photosynthesis research ...

The Cloud

Supermicro introduces open private Cloud solutions based on new Red Hat Enterprise Linux 8 ...

NetApp powers data-driven organisations to succeed ...