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Quantentechnologie

Quantum technology

Quantum technologies are widely on the rise towards becoming part of daily life. Super sensitive sensors in medicine and technology as well as ultra-stable and precise optical atomic clocks are already examples of their applications. PTB plays a leading role worldwide in many of these areas.
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News & press releases

40 Jahre erfolgreiche deutsch-chinesische Zusammenarbeit in der Metrologie

Was vor 40 Jahren mit umfänglicher Starthilfe begann, hat sich zur Kooperation auf Augenhöhe entwickelt: Zur Feier der metrologischen Zusammenarbeit zwischen China und Deutschland reist eine Delegation der PTB nach Peking.

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Ausbildungsberufe der PTB stellen sich vor

Die Physikalisch-Technische Bundesanstalt (PTB) in Braunschweig veranstaltet am Samstag, 24. August 2019, von 10 bis 16 Uhr, einen Tag der Ausbildung. Alle Ausbildungsberufe der PTB werden an diesem Tag von Ausbildern und Auszubildenden vorgestellt.

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Measurements at the Limit

The symposium will be held on 7th November 2019 at the Institute Berlin of PTB. Participation in the symposium is free of charge. However, please use the registration form, as the number of places is limited.

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Panoramaansicht des Windenergie-Kompetenzzentrums der PTB (Stand: Oktober 2018). Mittlerweile hat der Euler-Bau II sein Dach bekommen. Foto: PTB/Q.224

Niedersächsischer Finanzminister Reinhold Hilbers in der PTB

Die Physikalisch-Technische Bundesanstalt (PTB) unterstützt mit ihrem neuen „Kompetenzzentrum für Windenergie“ die deutsche Industrie beim Aufbau einer nachhaltigen Energieversorgung im Sinne der Energiewende.

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Event Calendar

Current Publications

Three times a year, PTB News provides topical information from the varied spectrum of activities of the Physikalisch-Technische Bundesanstalt (PTB) consisting of fundamental research, legal metrology and PTB's various activities in the service of the economy.

PTBnews 1.2019

Three times a year, PTB News provides topical information from the varied spectrum of activities of the Physikalisch-Technische Bundesanstalt (PTB) consisting of fundamental research, legal metrology and PTB's various activities in the service of the economy.
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maßstäbe 13 (in German only)

maßstäbe 13 (in German only)

This issue of maßstäbe ("Alltag in Maßen" - "Everyday Measurements") invites you to a journey which starts in our body and does not end in all sorts of networks.
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PTB-Mitteilungen 4.2017

PTB-Mitteilungen 4.2017

Issue 4: Metrology for the Digitalization of the Economy and Society
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After nearly 130 years of service, the international prototype of the kilogram is expected to be retired in the fall of 2018 (at the General Conference on Weights and Measures). The Avogadro experiment, which aims to determine the number of atoms contained in a near-perfect silicon sphere, is a cornerstone of the redefinition of the kilogram.

Titelseite JB 2017

The Annual Report is published every spring and reports on PTB's work in the past year. The full version is to be found here on the Internet; excerpts from it are also available as a printed brochure.
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News from the divisions

Charakterisierung der Transmissionsspektren von nano-strukturierten guided-mode resonance (GMR) Mikrofarbfiltern. [ more ]

A new method to derive best-fit parameters and their uncertainties from depolarizing Mueller-matrices. [ more ]

Sub-wavelength features in spectroscopic Mueller matrix ellipsometry. [ more ]

Towards a metrological characterization of semiconductor quantum dots for quantum radiometry in the near infrared [ more ]

PTB-OAR bei re3data registriert [ more ]

JRP “e-SI-Amp” finalized successfully [ more ]

Improving two-way satellite time and frequency transfer with redundant links for UTC generation. [ more ]

Towards a standard procedure for the measurement of the multi-photon component in a CW telecom heralded single-photon source. [ more ]

Zur Messung von Sparkle-Eigenschaften: [ more ]

Development of a high-precision MTF reference setup. [ more ]

PTB - The National Metrology Institute of Germany

PTB's profile of tasks

In Braunschweig and Berlin, time comes from atomic clocks, lengths are measured far into the nano-world, scientists do research on fundamental questions concerning the physical units, and the employees in the laboratories calibrate measuring instruments, meeting the most demanding requirements. Therefore, the Physikalisch-Technische Bundesanstalt is among the top names in metrology worldwide. As Germany's national metrology institute, PTB is Germany's highest authority when it comes to correct and reliable measurements. It is the supreme technical authority of the Federal Ministry for Economic Affairs and Energy (BMWi) and employs a total of approx. 1900 staff members. PTB operates an integrated Opens internal link in current windowquality management system which covers the four interlinked field of business. (Initiates file downloadSelf-Declaration on quality management).

Corporate logo of the Federal Ministry for Economic Affairs and Energy

The Physikalisch-Technische Bundesanstalt, the National Metrology Institute of Germany, is a scientific and technical higher federal authority falling within the competence of the Federal Ministry for Economic Affairs and Energy.