Technische Universität Braunschweig
  • Study & Teaching
    • Beginning your Studies
      • Prospective Students
      • Degree Programmes
      • Application
      • Fit4TU
      • Why Braunschweig?
    • During your Studies
      • Fresher's Hub
      • Term Dates
      • Courses
      • Practical Information
      • Beratungsnavi
      • Additional Qualifications
      • Financing and Costs
      • Special Circumstances
      • Health and Well-being
      • Campus life
    • At the End of your Studies
      • Discontinuation and Credentials Certification
      • After graduation
      • Alumni
    • For Teaching Staff
      • Strategy, Offers and Information
      • Learning Management System Stud.IP
    • Contact
      • Study Service Centre
      • Academic Advice Service
      • Student Office
      • Career Service
  • Research
    • Research Profile
      • Core Research Areas
      • Clusters of Excellence at TU Braunschweig
      • Research Projects
      • Research Centres
      • Professors‘ Research Profiles
    • Early Career Researchers
      • Support in the early stages of an academic career
      • PhD-Students
      • Postdocs
      • Junior research group leaders
      • Junior Professorship and Tenure-Track
      • Habilitation
      • Service Offers for Scientists
    • Research Data & Transparency
      • Transparency in Research
      • Research Data
      • Open Access Strategy
      • Digital Research Announcement
    • Research Funding
      • Research Funding Network
      • Research funding
    • Contact
      • Research Services
      • Academy for Graduates
  • International
    • International Students
      • Why Braunschweig?
      • Degree seeking students
      • Exchange Studies
      • TU Braunschweig Summer School
      • Refugees
      • International Student Support
      • International Career Service
    • Going Abroad
      • Studying abroad
      • Internships abroad
      • Teaching and research abroad
      • Working abroad
    • International Researchers
      • Welcome Support for International Researchers
      • Service for Host Institutes
    • Language and intercultural competence training
      • Learning German
      • Learning Foreign Languages
      • Intercultural Communication
    • International Profile
      • Internationalisation
      • International Cooperations
      • Strategic partnerships
      • International networks
    • International House
      • About us
      • Contact & Office Hours
      • News and Events
      • International Days
      • 5th Student Conference: Internationalisation of Higher Education
      • Newsletter, Podcast & Videos
      • Job Advertisements
  • TU Braunschweig
    • Our Profile
      • Aims & Values
      • Regulations and Guidelines
      • Alliances & Partners
      • The University Development Initiative 2030
      • Facts & Figures
      • Our History
    • Career
      • Working at TU Braunschweig
      • Vacancies
    • Economy & Business
      • Entrepreneurship
      • Friends & Supporters
    • General Public
      • Check-in for Students
      • CampusXperience
      • The Student House
      • Access to the University Library
    • Media Services
      • Communications and Press Service
      • Services for media
      • Film and photo permits
      • Advices for scientists
      • Topics and stories
    • Contact
      • General Contact
      • Getting here
  • Organisation
    • Presidency & Administration
      • Executive Board
      • Designated Offices
      • Administration
      • Committees
    • Faculties
      • Carl-Friedrich-Gauß-Fakultät
      • Faculty of Life Sciences
      • Faculty of Architecture, Civil Engineering and Environmental Sciences
      • Faculty of Mechanical Engineering
      • Faculty of Electrical Engineering, Information Technology, Physics
      • Faculty of Humanities and Education
    • Institutes
      • Institutes from A to Z
    • Facilities
      • University Library
      • Gauß-IT-Zentrum
      • Professional and Personnel Development
      • International House
      • The Project House of the TU Braunschweig
      • Transfer Service
      • University Sports Center
      • Facilities from A to Z
    • Equal Opportunity Office
      • Equal Opportunity Office
      • Family
      • Diversity for Students
  • Search
  • Quicklinks
    • People Search
    • Webmail
    • cloud.TU Braunschweig
    • Messenger
    • Cafeteria
    • Courses
    • Stud.IP
    • Library Catalogue
    • IT Services
    • Information Portal (employees)
    • Link Collection
    • DE
    • EN
    • Instagram
    • YouTube
    • LinkedIn
    • Mastodon
    • Bluesky
Menu
  • Organisation
  • Faculties
  • Faculty of Electrical Engineering, Information Technology, Physics
  • Institutes
  • Institute for CMOS Design
  • Research
Platzhalterlogo für Vorlagenseiten
Research projects - Quantum
  • Research
    • Research projects - Quantum
    • Research Projects - Biomedical
    • Research Projects - Radar
    • Research Projects - Communications
    • Publications

Research projects - Quantum

While it is said that the progress of conventional computers is reaching its limits, it is essential to be able to respond to the explosion of information processing demands. If we want quantum computing to rapidly solve our numerous and complex social problems, we need a fault-tolerant universal quantum computer that can perform precise computation while correcting quantum errors.

The institute of CMOS design is participating in several state-funded research projects aiming to develop various quantum computing systems. The main focus of our work is to design integrated systems based on BiCMOS and CMOS technologies capable of operating at cryogenic temperatures.

QuMIC (Qubits Control by Microwave Integrated Circuits)

The QuMIC (Qubits Control by Microwave Integrated Circuits) project focuses on the research and development of novel highly integrated BiCMOS chips at high frequencies (>10 GHz) and their hybrid integration with quantum electronics (ion trap and superconductivity chips) towards compact Multi-Chip Modules (MCM). These highly compact, integrated MCMs, intended to operate at a temperature of 4 K, lead to a significant miniaturization (by 8 orders of magnitude!) of the existing high-frequency electronics for driving quantum gates based on trapped ions and superconducting qubits. This approach not only enables the scalability of a quantum computer to a large number of qubits, but it is also a drastic reduction in the necessary high-frequency lines from room temperature to the cryogenic environment.

The Project is divided in two usecases:

Usecase 1 deals with amplitude modulating transmitters for ion-trap-based quantum control in the frequency range of 1 GHz to 13 GHz.

Usecase 2 deals with 100 Gb/s bit pattern generator for interfacing with a quantum accurate Josephson Arbitrary Waveform Synthesizer.

Contact:
Paul Shine Eugine
Yerzhan Kudabay
 

QVLS - Quantum Valley Lower Saxony
QVLS project Overview and interaction between different teams.
ATIQ - Trapped-Ion Quantum Computer for Applications
atiq_bild1.jpg
Cross-section view of an ion-trap with the contribution of the various partners from academia and industry highlighted. Several different institutes at TUBS are involved within the overall scope of the ATIQ project.

Similar to a classic computer, an ion-trap-based quantum computer can be broken down into multiple regimes such as memory and interaction region. Whereas the memory region stores quantum states, the interaction region is “where the magic happens,” and the ions are manipulated to obtain the desired quantum operation. To transport the ions from one regime to another, the positively charged ions are typically moved through a varying voltage gradient along a column of electrodes. At their destined position, highly accurate confinement in control voltages is required to minimize any disturbance besides the desired quantum operation. This requires very precise and low-noise electronics, only a tight power budget due to the limited cooling power of today’s available cryostats is available.

Hence, within the ATIQ project, the Institute for CMOS Design focuses on developing trap-integrated cryogenic electronics to supply voltages for ion confinement and movement. To be implemented, electronics include but are not limited to Digital-to-Analog converters, amplifiers, filters, and switching matrices to apply the control voltages to the electrodes. In close collaboration with partners from academia and industry, several demonstrators will be developed within this project.

Contact:
Alexander Meyer
Christian Ziegler

CryoSoQ - Cryogenic integrated CMOS signal sources for quantum-limited microwave amplifiers

Motivation
Superconducting parametric amplifiers in the microwave frequency range, which are based on Josephson junctions, can achieve such a low noise level that it is only limited by the quantum mechanical limit. However, these amplifiers usually have to be operated at temperatures of a few millikelvin (around -273 °C) and expensive, high-performance microwave generators are usually used to provide the power for the parametric amplification process. These two limitations restrict the application range of such amplifier circuits and make it difficult to use them widely for applications in which very weak signals in the microwave frequency range have to be amplified with extremely low noise. A typical area of application for such amplifiers is, for example, quantum computers based on superconducting qubits.

Objectives and procedure
The aim of CryoSoQ is to combine resonant superconducting parametric amplifiers with cryogenic CMOS electronics and thus take the first steps towards solving the aforementioned limitations. At the end of the project, a highly integrated CMOS signal source and a parametric amplifier will be operated at a temperature of 4 K (-269 °C) and combined to form a module.

Innovation and prospects
The project goals of CryoSoQ are to investigate fundamental questions on the way to a highly integrated parametric amplifier with an integrated signal source. The project is thematically related to hardware for quantum computers and quantum technologies. It should thus contribute to promoting the economic implementation of quantum technologies in Germany and strengthening competitiveness in the national and international market.Die Projektziele von CryoSoQ dienen dazu grundsätzliche Fragen auf dem Weg zu einem hochintegrierten parametrischen Verstärker mit integrierter Signalquelle zu untersuchen. Das Projekt ist thematisch der Hardware für Quantencomputer und Quantentechnologien zuzuordnen. Es soll damit zur Förderung der wirtschaftlichen Umsetzung der Quantentechnologien in Deutschland und der Stärkung der Wettbewerbsfähigkeit im nationalen und internationalen Markt beitragen.

Chips JU ARCTIC

The ArCTIC project aims to drive significant advancements in the development of scalable microelectronics optimized for operation at cryogenic temperatures, with a primary focus on their integration into various quantum computing systems. Achieving this goal necessitates a multidisciplinary approach. It includes not only materials research of technology process, but also parametric performance of integrated devices at cryogenic temperatures and device modeling based on measurement data.

To address these challenges, the main goal of the project is to develop energy-efficient circuits for cryogenic applications such as low-noise amplifiers, digital to analog converters and high-speed ultralow phase noise microwave generators precisely characterized at an early stage so that they can later be combined into fully functional high-speed transceivers for cryogenic applications.

Photo credits on this page

For All Visitors

Vacancies of TU Braunschweig
Career Service' Job Exchange 
Merchandising

For Students

Term Dates
Courses
Degree Programmes
Information for Freshman
TUCard

Internal Tools

Glossary (GER-EN)
Change your Personal Data

Contact

Technische Universität Braunschweig
Universitätsplatz 2
38106 Braunschweig

P. O. Box: 38092 Braunschweig
GERMANY

Phone: +49 (0) 531 391-0

Getting here

© Technische Universität Braunschweig
Legal Notice Privacy Accessibility

TU Braunschweig uses the software Matomo for anonymised web analysis. The data serve to optimise the web offer.
You can find more information in our data protection declaration.