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David MarshAssistant Professor

About me


Extreme astrophysical environments provide rare opportunities to test the fundamental laws of nature under conditions that go beyond the limitations of terrestrial laboratories. In my research, I develop the theory and phenomenology of well-motivated microphysical models. I then use these to identify and -- when relevant -- search for observational signals from new fundamental physics that may be imprinted on astronomical or cosmological observables. 

In the past, much of my research has focused on the cosmology of string compactifications, the theory of inflation, and astronomical signals from axions.

My publications can be found here.


Group members

Eike Müller, PhD student, 2019 -...

Gustavo Salinas, Postdoc, 2021-2023

Pierluca Carenza, Postdoc, 2021-2024

Oindrilla Ghosh, Postdoc, 2023-2025


Previous member:

Theodor Björkmo, PhD student (University of Cambridge), 2016-2019.


Career history

2019 -...:     Assistant professor, Stockholm University
2015-2019:  Stephen Hawking Advanced Fellow, University of Cambridge.
2012-2015: Postdoc, University of Oxford.
2012:          Ph.D., Cornell University.
2007:          M.Sc., Uppsala University.

Research projects