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Position: Scientific collaborator with a doctorate in the field of physics or a related subject
Institution: Physikalisch-Technische Bundesanstalt
Location: Braunschweig, Niedersachsen, Germany
Duties: Develop the first ultra-stable resonators which employ novel micro-structured mirrors and identify fundamental noise sources; Collaborate on the development of ultra-stable resonators operating at lower temperatures to further reduce thermal noise; Collaborate in identifying and mitigating technical noise contributions below the current state-of-the-art in terms of temperature control, acceleration, light field amplitude, etc; Contribute to the exploition of the excellent frequency stability of our existing and future ultra-stable lasers to improve the performance of optical atomic clocks (Sr optical lattice clocks, Yb ion clocks, Al quantum logic clock, etc.) and at partner research centers linked through the European optical frequency distribution fiber network, and to use this stability in fundamental physics tests; Cooperate with partners from the QuantumFrontiers Excellence Cluster in Germany, Europe and the US for technology development and application of ultra-stable lasers to applied and fundamental research; Participate in the Collaborative Research Center DQ-mat at Leibniz University Hannover
Requirements: You have obtained a doctorate in physics or a related subject with excellent results; You have experience in experimental optics, lasers technology and related fields. Experience in at least one of the following fields is an advantage: cryogenics, low-noise electronics or data analysis; You are interested in and well-suited to developing and conducting high-precision experiments; You have a good command of English; You have excellent teamwork and communication skills; You are physically able to work in a laboratory and to perform experiments at locations outside the institute; We are part of an excellent research environment and have access to PTB's unique infrastructure. Our working group has excellent connections to other groups, both at national and international levels, and it is involved in several coordinated research projects including SFB 1227 "Designed quantum states of matter" (DQ-mat) and the "QuantumFrontiers" Excellence Cluster. We offer an interesting working environment and laboratories with excellent equipment. You will be part of a motivated team
   
Text: scientific collaborator with a doctorate in the field of physics or a related subject (20-403-4) Monday, 1. February 2021 The Physikalisch-Technische Bundesanstalt (PTB) is the National Metrology Institute of the Federal Republic of Germany with scientific and technical service tasks. It furthers progress and reliability in metrology for society, the economy and science. Department 4.3, Quantum Optics and Unit of Length, of Division 4 is looking for a scientific collaborator with a doctorate in the field of physics or a related subject to join us as soon as possible. This position is available as a 3-year fixed-term contract. You will be employed at our Braunschweig site. Depending on your personal qualifications, remuneration may reach up to remuneration group 14 TVöD Bund. Lasers with the highest frequency stability are a key technological component for the development of a wide range of quantum devices ranging from atomic clocks to quantum computers and fundamental physics experiments. In collaboration with Prof. Jun Ye's group (JILA, Boulder, USA), our group at PTB has recently realized the world's most stable laser by means of a mono-crystalline silicon resonator cooled down to 124 K (Phys. Rev. Lett. 118 , 263202 (2017)). We are looking for an experimental physicist to join our team to help further improve the stability of these systems and to use this unique cutting-edge technology to improve optical clocks and perform fundamental physics tests. Your tasks: Develop the first ultra-stable resonators which employ novel micro-structured mirrors and identify fundamental noise sources; Collaborate on the development of ultra-stable resonators operating at lower temperatures to further reduce thermal noise; Collaborate in identifying and mitigating technical noise contributions below the current state-of-the-art in terms of temperature control, acceleration, light field amplitude, etc.; Contribute to the exploition of the excellent frequency stability of our existing and future ultra-stable lasers to improve the performance of optical atomic clocks (Sr optical lattice clocks, Yb ion clocks, Al quantum logic clock, etc.) and at partner research centers linked through the European optical frequency distribution fiber network, and to use this stability in fundamental physics tests; Cooperate with partners from the QuantumFrontiers Excellence Cluster in Germany, Europe and the US for technology development and application of ultra-stable lasers to applied and fundamental research; Participate in the Collaborative Research Center DQ-mat at Leibniz University Hannover. Your profile: You have obtained a doctorate in physics or a related subject with excellent results You have experience in experimental optics, lasers technology and related fields. Experience in at least one of the following fields is an advantage: cryogenics, low-noise electronics or data analysis You are interested in and well-suited to developing and conducting high-precision experiments You have a good command of English You have excellent teamwork and communication skills You are physically able to work in a laboratory and to perform experiments at locations outside the institute We are part of an excellent research environment and have access to PTB's unique infrastructure. Our working group has excellent connections to other groups, both at national and international levels, and it is involved in several coordinated research projects including SFB 1227 "Designed quantum states of matter" (DQ-mat) and the "QuantumFrontiers" Excellence Cluster. We offer an interesting working environment and laboratories with excellent equipment. You will be part of a motivated team. For further information with regard to this position, please contact: Dr. Uwe Sterr, 49 531 592-4310, e-mail: uwe.sterr (at) ptb . de or Dr. Harald Schnatz, 49 531 592-4300, e-mail: harald.schnatz (at) ptb . de . PTB promotes the professional equality of women and men and is thus especially interested in applications from women. Within the scope of the official feasibilities, PTB offers flexible part-time work schemes in order to support in particular the compatibility of work and family life. Disabled persons will be given priority if they have the same occupational aptitude. Link to the department’s website: https://www.ptb.de/cms/en/ptb/fachabteilungen/abt4/fb-43.html Are you interested? Then we are looking forward to hearing from you. Please include a list of your publications and possible references. Please use our online application form or send us your application to the following postal address during the application period from 21 December 2020 to 1 February 2021: Physikalisch-Technische Bundesanstalt Referat "Personal" Reference number 20-403-4 Bundesallee 100 38116 Braunschweig Germany Unfortunately, we cannot accept applications sent via e-mail Back
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