Trapped ion optical clock scientist

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Job description

The Time & Frequency Department at NPL is recruiting an experimental physicist with a strong background in cold atom or ion research to contribute to our expanding programme of high-performance optical clocks. We have a position available in our ytterbium ion (Yb+) optical clock team, developing a world-leading frequency standard for applications in metrology and fundamental physics.Optical clocks are at the forefront of frequency metrology, with measurement uncertainties reaching a part in 1018. A special feature of Yb+ is the existence of an ultra-narrow electric octupole transition, which provides the precise frequency reference for the optical clock. We are developing new ion traps and investigating novel probing sequences to boost the frequency stability and accuracy of our optical clocks.Such high-performance clocks could form the basis of a redefinition of the SI second, so we collaborate with other national measurement institutes worldwide, regularly comparing clock frequencies via satellite or optical fibre links to check that clocks in different countries all agree. The Yb+ optical clock is also particularly sensitive to variations in the fine structure constant, and we exploit this to make precision measurements that test physics beyond the Standard Model, including searches for dark matter.The leading-edge nature of this work will provide you with ample opportunities to publish your work in high-impact journals and to present your work at international conferences.We are looking for a highly-motivated scientist, with the drive and aptitude to implement new ideas and develop the Yb+ optical clock beyond its current limits. The successful candidate will be capable of carrying out novel research within a team, with a positive attitude towards record-keeping, documentation and version control.Essential skills:PhD in experimental atomic physics, or a closely related areaPractical aptitude for laser opticsScientific computing and data analysis (preferably Python and Matlab)Excellent technical communication skills - both written and spokenDesirable skills:Design and operation of rf Paul traps for single or multiple ionsARTIQ experimental control; LabView also usefulElectronic control systems, e.g. PID servo loopsUltra-high vacuum setupsFor further technical information about the project and role please contact publications[1] Search for transient variations of the fine structure constant and dark matter using fiber-linked optical atomic clocksB.M. Roberts et al., New Journal of Physics 22, 093010 (2020).[2] Absolute frequency measurement of the 2S1/2 2F7/2 optical clock transition in 171Yb+ with an uncertainty of 4 × using a frequency link to international atomic time C.F.A. Baynham et al., Journal of Modern Optics 65, 585 (2018).[3] A single-ion trap with minimized ion-environment interactionsP.B.R. Nisbet-Jones et al., Applied Physics B 122, 57 (2016).Applications will be reviewed, and interviews conducted throughout the duration of this advert therefore we may at any time bring the closing date forward. We encourage all interested applicants to apply as soon as practical.NPL and BEIS have strong commitments to diversity and equality of opportunity, and welcome applicationsfrom candidates irrespective of their background, gender, race, sexualorientation, religion, or age, providing they meet the required criteria. Applicationsfrom women, disabled and BAME candidates in particular are encouraged. Alldisabled candidates (as defined by the Equality Act 2010) who satisfy theminimum criteria for the role will be guaranteed an interview under theDisability Confident Scheme.We're transforming. As a national laboratory, we're exploring even more commercial routes to market and that's presenting us with greater opportunity - for you and us. Our success relies on the diversity and talent of our people, we strive to nurture and respect individuals to ensure everyone feels valued and supported to excel in their chosen field. This value is at the core of our organisation.We believe in a culture of fairness by treating everyone on the basis of their own individual merits and abilities regardless of their own or perceived identity, background or any other factor irrelevant to a person's work. At NPL we are committed to the health and well-being of our employees. Flexible working and social activities are embedded in our culture to create a positive work-life balance, along with a broad range of benefits. NPL's values are at the heart of what we do and they shape the way we interact, develop our people and celebrate success.As part of our commitment to diversity & inclusion, we signed up to the Institute of Physics' Project Juno in 2015 as a Juno Supporter. NPL were proud to be awarded Juno Practitioner status in 2018. NPL also joined Stonewall as a Diversity champion in 2015, participating in their annual Workplace Equality Index for the equality of LGBT+ community at NPL. In 2018, NPL became a member of the Business Disability Forum and joined the disability confident scheme as level 1 committed employer.To ensure everyone has an equal chance, we're always willing to make reasonable adjustments to the recruitment process. If you would like to discuss, please contact us.