David Weir

Academy Research Fellow, Helsinki Institute of Physics
Associate professor, Department of Physics

https://orcid.org/0000-0001-6986-0517

Phone+358294150533, +358504485600
Emaildavid.weir@helsinki.fi

Finland
PL 64 (Gustaf Hällströmin katu 2)
00014
Finland

Research output per year

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Personal profile

Research interests

I use large simulations of the first moments after the Big Bang to try to explain how the universe got the way it is today. Employing thousands of computer cores and as much as a million CPU-hours, I am working to model the way in which the events of the early universe leave behind an echo, as a background of gravitational waves. This background can potentially be picked up by future gravitational wave experiments, such as the European Space Agency LISA mission. I am also interested in wellbeing issues, and making academia a kinder place for everyone.

External positions

Ernest Rutherford Fellow, Univ Nottingham, University of Nottingham

31 Mar 2019 → 31 Aug 2019

Fields of Science

114 Physical sciences
Kosmologia
kvanttikenttäteoria
laskennallinen fysiikka

Publications

19 Article
5 Conference article
1 Conference contribution
1 Review Article

Detecting gravitational waves from cosmological phase transitions with LISA: an update

LISA Cosmology Working Grp, Caprini, C., Hindmarsh, M. & Weir, D. J., Mar 2020, In : Journal of Cosmology and Astroparticle Physics. 3, 60 p., 024.

Research output: Contribution to journal › Article › Scientific › peer-review

Electroweak phase transition in the real triplet extension of the SM: Dimensional reduction

Niemi, L., Patel, H. H., Ramsey-Musolf, M. J., Tenkanen, T. V. & Weir, D. J., 5 Aug 2019, In : Physical Review D. 100, 3, 16 p., 035002.

Research output: Contribution to journal › Article › Scientific › peer-review

Open Access

File

Higgs physics and cosmology: gravitational waves from the electroweak phase transition

Weir, D., 1 Mar 2019, In : PoS Proceedings of Science. 339, 9 p., 027.

Research output: Contribution to journal › Conference article › Scientific › peer-review

Open Access

File

Nonperturbative analysis of the gravitational waves from a first-order electroweak phase transition

Gould, O., Kozaczuk, J., Niemi, L., Ramsey-Musolf, M. J., Tenkanen, T. V. I. & Weir, D. J., 12 Dec 2019, In : Physical Review D. 100, 11, 21 p., 115024.

Research output: Contribution to journal › Article › Scientific › peer-review

Open Access

File

Three-dimensional effective theories for the two Higgs doublet model at high temperature

Gorda, T., Helset, A., Niemi, L., Tenkanen, T. V. I. & Weir, D. J., 13 Feb 2019, In : Journal of High Energy Physics. 2, 45 p., 081.

Research output: Contribution to journal › Article › Scientific › peer-review

Open Access

File

Projects

1 Active

Gravitational wave cosmology for LISA

Weir, D., Gould, O., Granados Escartin, E. S., Kormu, A., Tähtinen, S., Sukuvaara, S. & Vilhonen, E. E.

Valtion perusrahoitus/hankkeet, SUOMEN AKATEMIA

01/01/2018 → 31/12/2020

Project: University of Helsinki Three-Year Research Project

Activities

5 Academic visit at UH
3 Organisation and participation in conferences, workshops, courses, seminars
2 Academic visit to other institution

Athena SWAN and Project Juno Information Event

David Weir (Chair of organizing committee), Eija Tuominen (Member of organizing committee), Hanna Vehkamäki (Member of organizing committee), David Whipp (Member of organizing committee)

11 Oct 2019

Activity: Participating in or organising an event types › Organisation and participation in conferences, workshops, courses, seminars