Just as PTB was once – thanks to its measuring skills – at the beginning of quantum mechanics, PTB is now driving the second quantum revolution’s wave of metrological possibilities – with the next generations of atomic clocks, even more precise electrical standards and innovative measurement capabilities in medicine. more
An international team has shown through a sensational experiment how diverse the possibilities for employing synchrotron light sources are. The work was published on 24 February 2021 in the leading scientific publication Nature.
Das Baryon-Antibaryon-Symmetrie-Experiment (BASE) am Antiprotonen-Entschleuniger des CERN hat neue Grenzen für die Stärke festgelegt, mit der sich Axion-ähnliche Teilchen in Photonen, die Teilchen des Lichts, verwandeln können. Dies ist besonders bemerkenswert, da BASE nicht für solche...
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.
Das neue SI wird ein Meilenstein der Kulturgeschichte. Was bedeutet das konkret für Schüler, Wissenschaftler, die Technik, die allgemeine Öffentlichkeit sowie - wer weiß - Marsianer? Das PTB-Infoblatt erläutert es kurz, knapp und übersichtlich.
Fortschritte bei der Modellierung von koplanaren Wellenleitungen [ more ]
Traceable determination of the Sparkle and Graininess measurands and first-time generation of related measurements scales [ more ]
EMPIR BxDiff project “New quantities for the measurement of appearance” develops traceable calibrations procedures for BTDF and BSSRDF measurements [ more ]
Revisiting the limits of photon momentum based optical power measurement method, employing the case of multi-reflected laser beam [ more ]
EU Horizon 2020 Forschungsprojekt „Metrology for Integrated Marine Management and Knowledge-Transfer Network (MINKE)“ [ more ]
Europäisches Metrologie Netzwerk „TraceLabMed“ verstärkt Zusammenarbeit mit strategisch wichtigen Partnern [ more ]
Messunsicherheit von absoluten Isotopenverhältnissen – Excel®-basiertes Tool zur Berechnung der Messunsicherheit von Kalibrierfaktoren erarbeitet [ more ]
Neuartiges Ionisationsvakuummeter als Referenzmessgerät [ more ]
A benchmark for single-electron circuits - a new methodology for an abstract and universal description of the fidelity of quantum circuits [ more ]
PTB - The National Metrology Institute of Germany
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 quality management system which covers the four interlinked field of business. (Self-Declaration on quality management).
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.