The Willitsch Group - Cold and Controlled Molecules and Ions

Welcome to the Cold and Controlled Molecules and Ions group at the University of Basel led by Prof. Stefan Willitsch. Our research is concerned with the preparation and control of cold molecules and molecular ions and their applications in both chemistry and physics. On this website, you can find information about our group, our research, our teaching and opportunities to join us.

Recent news


Dr. Nabanita Deb joins us as a new postdoc
Nabanita received her PhD from the University of Oxford and embarked on a first postdoc at the Weizmann Institute. She will join forces on our conformationally controlled chemistry programme. Welcome, Nabanita !

Ardita’s latest paper  was designated as a HOT article in Phys. Chem. Chem. Phys.

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Our group

Open positions

Open postdoc position: cold ion-neutral collisions and chemistry using hybrid trapping techniques

More information

Recent publications


K. Najafian, Z. Meir and S. Willitsch,
”From megahertz to terahertz qubits encoded in molecular ions: theoretical analysis of dipole-forbidden spectroscopic transitions in N2+
arxiv 2007.11097

A. Kilaj, H. Gao, D. Tahchieva, R. Ramakrishnan, D. Bachmann, D. Gillingham, O. A. von Lilienfeld, J. Küpper and S. Willitsch,
"Quantum-chemistry-aided identification, synthesis and experimental validation of model systems for conformationally controlled reaction studies: Separation of the conformers of 2,3-dibromobuta-1,3-diene in the gas phase"
Phys. Chem. Chem. Phys. 22 (2020), 13431 (arxiv 2004.09659)

K. Najafian, Z. Meir, M. Sinhal and S. Willitsch,
"Identification of molecular quantum states using phase-sensitive forces"
arXiv 2004.05306 

M. Sinhal, Z. Meir, K. Najafian, G. Hegi and S. Willitsch,
"Quantum non-demolition state detection and spectroscopy of single trapped molecules"
Science 367 (2020), 1213 

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