PhD position in AMO Physics - QuEST for APV

This PhD project focuses on quantum-enhanced sensing in trapped ions for atomic parity violation, a cornerstone of the electroweak interaction. Using quantum technology, the project will push the frontiers of fundamental physics tests.

Your function

We are searching for a motivated and interested PhD student with a degree in physics or related topics, or with experience in quantum technology, spectroscopy, and/or laser physics, who wishes to work with us in the international and stimulating environment of the joint Quantum Metrology group at LaserLaB Amsterdam.

This project aims to develop a new experimental apparatus that enables quantum-enhanced sensing in trapped barium ions for tests of electroweak theory. At the basis of the project lies a unique high-precision radio frequency ion trap in which single Ba+ ions will be confined and cooled to their motional ground state. With optical standing waves the individual ions will be addressed to drive an extremely weak parity-forbidden transition. In order to detect the signals from driving such a weak transition, quantum-entangled states will be used that reject external perturbations. Based on measurements of atomic parity violation in Ba+, its electroweak charge will be extracted to test the electroweak theory at low energies with unprecedented precision and search for possible signals that may hint towards new physics.

During the PhD, you will engage with various aspects of experimental physics, including ultrahigh vacuum, CAD design, optics and lasers, electronics, and scientific programming.

Your profile

• Master in physics or related topics
• Affinity for atomic, molecular, and optical physics
• Preferably some experience with experimental techniques
• Most important is that you are bright, enthusiastic, work well in a team, are eager to learn, and are enthusiastic about this intriguing project

We realise that each individual brings a unique set of skills, expertise and mindset. Therefore we are happy to invite anyone who recognises themselves in the profile to apply, even if you do not meet all the requirements.

What do we offer?

A challenging position in a socially engaged organisation. At VU Amsterdam, you contribute to education, research and service for a better world. And that is valuable.

• An employment contract of initially 1 year. If there is sufficient perspective, this will be extended to a total of 4 years. Your dissertation at the end of the fourth year forms the end of your employment contract.
• Contribution to commuting expenses
• Optional model for designing a personalized benefits package
• Discount on, and occasionally exclusive access to, theater performances and courses at the Griffioen Cultural Center

About us

QMLA group in the Department of Physics and Astronomy

The Quantum Metrology and Laser Applications group at LaserLaB, Vrije Universiteit Amsterdam, is a very international group, consisting of some 20 strongly collaborating senior and junior scientists. The group focuses on precision measurements of atomic and molecular systems, using advanced laser techniques as well as techniques to cool the motion of atoms and molecules. For this, they use the joint infrastructure at LaserLaB, with a variety of lasers ranging from ultrastable to ultrafast, connected to atomic clocks and frequency comb lasers. The goals are to test fundamental theories of physics, determine fundamental constants, and search for physics beyond the Standard Model, such as fifth forces and extra dimensions.

Faculty of Science

Working at the Faculty of Science means collaborating with students, lecturers and researchers who are focused on their field, yet have a broad view of the world. We are proud of a positive and inclusive workplace culture within the faculty, where we work together with great energy and a pragmatic attitude to tackle social challenges. At the Faculty of Science, scientists and students work on fundamental and complex societal issues for a sustainable, healthy and just future.