13. September 2021
DLRmagazine 168 Cover story

Qubits hit the ground run­ning

Quantum computer in Stuttgart
Quan­tum com­put­er in Stuttgart
Image 1/4, Credit: IBM Corporation

Quantum computer in Stuttgart

The 27 qubits of the IBM Q Sys­tem One are the heart of the quan­tum com­put­er at the Fraun­hofer Com­pe­tence Cen­ter 'Quan­tum Com­put­ing Baden-Würt­tem­berg' in Ehnin­gen
near Stuttgart. DLR us­es the quan­tum com­put­er to sim­u­late atom­ic pro­cess­es in bat­ter­ies in or­der to in­crease their per­for­mance and en­er­gy den­si­ty.
DLR research in the field of quantum metrology
DLR re­search in the field of quan­tum metrol­o­gy
Image 2/4, Credit: © DLR. All rights reserved

DLR research in the field of quantum metrology

Quan­tum metrol­o­gy en­ables time mea­sure­ments of un­prece­dent­ed ac­cu­ra­cy – for much more pre­cise nav­i­ga­tion sys­tems, among oth­er things.
Investigate ultracold quantum gases in weightlessness
In­ves­ti­gate ul­tra­cold quan­tum gas­es in weight­less­ness
Image 3/4, Credit: © DLR. All rights reserved

Investigate ultracold quantum gases in weightlessness

Quan­tum tech­nolo­gies in space – but al­so for use on Earth. In the Bose-Ein­stein Con­den­sate and Cold Atom Lab­o­ra­to­ry (BEC­CAL) project, DLR is work­ing with NASA to in­ves­ti­gate ul­tra­cold quan­tum gas­es such as Bose-Ein­stein con­den­sates on Earth and in mi­cro­grav­i­ty on the In­ter­na­tion­al Space Sta­tion (ISS).
Small satellite PIXL-1
Small satel­lite PIXL-1
Image 4/4, Credit: DLR (CC BY-NC-ND 3.0)

Small satellite PIXL-1

Quan­tum cryp­tog­ra­phy can be used to en­code da­ta in an in­ter­cep­tion-proof man­ner. Among oth­er things, DLR is re­search­ing op­ti­cal com­mu­ni­ca­tion sys­tems for small satel­lites, as here with PIXL-1.

A new research initiative supports quantum computing 'made in Germany'

Article from DLRmagazine 168

Qubits hit the ground running

Today's most cutting-edge high-performance computers still operate based on the ones and zeroes of conventional digital 'bits', but this might not be the case for much longer. DLR is leading an initiative to develop a prototype quantum computer in Germany based on quantum bits (qubits) that, in addition to being a revolutionary technological leap, will open up new opportunities for industry, science and society. This is the goal of a recent decision by the German Federal Government, which approved a total of two billion euros in funding to promote quantum technology in Germany. DLR will receive 740 million euros of this for the purpose of establishing the necessary scientific and industrial framework, together with partners from industry, start-ups and research groups, as part of the DLR Quantum Computing Initiative.

Quantum computing dates back to the 1980s. In 1982, the US-American physicist Richard P. Feynman proposed a theoretical concept for quantum computers, with the aim of making it possible to accurately simulate and study quantum physical phenomena. The first quantum algorithms were developed in the 1980s and the first laboratory quantum computers with a few qubits were built in the 1990s. Today, the international race for the development and construction of quantum computers is well under way. Major US corporations have already demonstrated experimental quantum computers, which are being used by research institutions such as the Fraunhofer Society and DLR.

The fast-paced world of qubits

The new quantum computers are expected to deliver unprecedented computing power, opening up new economic and social opportunities and increasing Germany's international competitiveness. Quantum computers offer advantages for data and information processing, interception-proof cryptography techniques, artificial intelligence, materials research, medicine, the energy and transport sectors, and satellite-based communications and navigation. German businesses and industry therefore have a strong interest in the development of these technologies, solutions and applications in Germany, as this would ensure that the usage and patent rights also remain in the country.

Qubit concept
Qubit concept
Qubits are the smallest computing and information unit of a quantum computer. They are based on the laws of quantum physics.
Credit: © Jackie Niam – stock.adobe.com

This new technology is simply unbeatable in highly complex calculations. A quantum computer would be able to quickly solve problems that could take conventional high-performance computers years. The ability to precisely simulate highly complex quantum systems with a large number of interacting atoms, ions and electrons is particularly exciting. Such systems include the active ingredient molecules in medications or the quantum chemical processes occurring in battery electrodes or fuel cells. The aim would be to draw conclusions about macroscopic characteristics from the quantum mechanical processes taking place at the atomic scale. Among other things, it is hoped that this will accelerate the future development of new medications or high-tech materials. Quantum computers thus have enormous potential to facilitate innovations in many fields from fundamental research to industrial applications.

Quantum technologies at DLR

In the DLR Quantum Computing Initiative, research institutes, industry and start-ups will work together to develop quantum hardware, software and applications. DLR is contributing its wide-ranging expertise in quantum research, with almost a dozen institutes and facilities conducting research in the field of quantum technologies. The Institute of Quantum Technologies in Ulm and the Institute for Satellite Geodesy and Inertial Sensing in Hanover have recently been established. Among other things, they are working on the use of quantum sensors on board the International Space Station (ISS). At the Galileo Competence Center, research is being carried out on high-precision optical clocks for satellite-based navigation.

Until a German quantum computer is built, the DLR Quantum Computing Initiative will also implement hybrid systems. In this way, conventional high-performance computers can incorporate individual components of quantum computers in order to be able to use the enormous potential of quantum computing for research.

Anke Kaysser-Pyzalla
Anke Kaysser-Pyzalla
Anke Kaysser-Pyzalla, Chair of the DLR Executive Board.
Credit: DLR

Ready for a quantum leap

Three questions for Anke Kaysser-Pyzalla, Chair of the DLR Executive Board

What potential does quantum computing offer industry, science and society?

: In modern society, we are exposed to a vast and heterogeneous flood of data. Its effective processing requires enormous computing power. Quantum computing will enable us to better adapt to this situation. This technology has the potential to revolutionise computing by significantly accelerating the solution of complex problems that are often impossible to address using conventional computers.

What is DLR's role?

: DLR will draw on its experience of managing large-scale projects by leading the Quantum Computing Initiative. This involves using the funds made available by the German Federal Ministry for Economic Affairs and Energy (BMWi) to finance projects conducted by industry, start-ups and research groups, and driving forward the ongoing development of quantum computers in a coordinated manner. This will involve the development of quantum hardware, software and, of course, the applications themselves. Only within the framework of such networking and with strategic coordination will we jointly achieve the goal of developing and testing the first German quantum computer prototypes.

What priorities will DLR set in order to establish the necessary economic and research environment?

: We are focusing on pursuing a range of technological approaches in order to be able to evaluate them and use them for the relevant applications. Only in this way is it possible to explore the advantages and disadvantages of different architectures for quantum computers. To this end, we will create the necessary ecosystem to facilitate cooperation between partners. Researchers, industry and start-ups can complement each other’s skills by sharing their expertise. As a result,
Germany will build up extensive knowledge in the field of quantum computing and achieve the greatest possible level of independence.

Robert Axmann
Robert Axmann
Robert Axmann, Head of the Space Research and Technology Programme Strategy Department at DLR.
Credit: DLR

... and for Robert Axmann, Head of the Space Research and Technology Programme Strategy Department at DLR

Which quantum computing applications are DLR institutes and facilities researching today?

: In recent years, DLR has significantly expanded its expertise and infrastructure in the area of quantum computing. In addition to several newly founded institutes and facilities, this topic is also the subject of research for many of our well-established institutes (see info box for list of institutes), which are primarily concerned with the use of quantum computers to improve and accelerate modelling, simulation and optimisation. Our Institute for Software Technology, which has been researching algorithms and software for early quantum computers since 2015, is set to play a pioneering role, as is the Institute of Communications and Navigation. However, DLR's resources alone are not sufficient for the comprehensive implementation of quantum computing. This can now be achieved through a collaborative effort as part of the Initiative.

The DLR Quantum Computing Initiative is expected to run for four years. What are the main objectives during this period?

: The Initiative pools our resources and areas of expertise in order to develop various quantum computer prototypes and their components, including applications for scientific, industrial and security-related issues within the designated period. Market analysis by DLR has shown that hardware, software, applications and the necessary supply chains must all be considered.

How can interested companies, start-ups and research partners get involved?

: Based on its market survey, DLR will issue invitations to tender; potential partners can respond to these with their proposed projects. Our first task will be to evaluate the submitted proposals. We will then bring partners from industry and start-ups together with the research institutions in cases where their approaches and areas of focus complement one another. As a rule, the partners will be involved by the commissioning of research and development services, the purchasing of existing research sults or joint research at innovation centres in return for a free.

Institutes and facilities involved in quantum research

DLR Institute of Quantum Technologies
DLR Institute of Satellite Geodesy and Inertial Sensing
DLR Institute for Software Technology
DLR Institute of Engineering Thermodynamics
DLR Space Operations and Astronaut Training
DLR Institute of Materials Research
DLR Institute of Communications and Navigation
DLR Institute of Data Science
DLR Institute of Optical Sensor Systems
Galileo Competence Center
Institute of AI Safety and Security

This article is taken from DLRmagazine 168. Subscribe to the DLRmagazine and receive it at your doorstep free of charge. All the issues of the DLRmagazine can be found here.

Quantum computers - More than 0s and 1s

A quantum computer works differently from a normal computer. Its quantum bits, or qubits for short, obey the laws of quantum physics. This describes the phenomena taking place on the atomic scale. The bits of a conventional computer can have only two states – 0 and 1. Qubits, by contrast, can take on an infinite number of intermediate values. Quantum physics also enables novel algorithms that are not possible with conventional computers. Quantum computers are thus able to solve problems which traditional computers cannot. Quantum physical objects, such as electrons, atoms, ions or photons, serve as qubits. Quantum computers will enable entirely new, hitherto unimaginable information processing techniques for research, science and industry.

  • Julia Heil
    Ger­man Aerospace Cen­ter (DLR)

    Com­mu­ni­ca­tions and Me­dia Re­la­tions
    Telephone: +49 2203 601-5263
    Linder Höhe
    51147 Cologne
  • Tim Suckau
    Ger­man Aerospace Cen­ter (DLR)

    Com­mu­ni­ca­tions and Me­dia Re­la­tions
    Telephone: +49 2203 601-5456
    Linder Höhe
    51147 Cologne

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