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Faculty of Mathematics

 

Career

  • 2020 Oct. - present    Research Associate    University of Cambridge
  • 2016 Sept. - 2020 Sept.    PhD Candidate/de Sitter Fellow    Leiden University
  • 2013 Sept. - 2016 Jun.    Master    University of Science and Technology of China

Research

    My research focuses on primordial cosmology. Currently I am exploring new physics effects in the earliest stage of the Universe, by looking into their imprints in cosmological observables. In particular, I am interested in fundamental symmetries and internal geometries during inflation, theoretical aspects of cosmological correlators, and the phenomenology of primordial non-Gaussianity.

Publications

Origin of ultra-light fields during inflation and their suppressed non-Gaussianity
A Achúcarro, GA Palma, DG Wang, Y Welling
– Journal of Cosmology and Astroparticle Physics
(2020)
2020,
018
Shift-symmetric orbital inflation: Single field or multifield?
A Achúcarro, EJ Copeland, O Iarygina, GA Palma, DG Wang, Y Welling
– Physical Review D
(2020)
102,
021302
On the inflationary massive field with a curved field manifold
DG Wang
– Journal of Cosmology and Astroparticle Physics
(2020)
2020,
046
When primordial black holes from sound speed resonance meet a stochastic background of gravitational waves
YF Cai, C Chen, X Tong, DG Wang, SF Yan
– Physical Review D
(2019)
100,
043518
Universality and scaling in multi-field $α$-attractor preheating
O Iarygina, EI Sfakianakis, DG Wang, A Achúcarro
– Journal of Cosmology and Astroparticle Physics
(2019)
2019,
027
Primordial Black Holes from Sound Speed Resonance during Inflation
Y-F Cai, X Tong, D-G Wang, S-F Yan
– Phys Rev Lett
(2018)
121,
081306
Hypernatural inflation
A Linde, DG Wang, Y Welling, Y Yamada, A Achúcarro
– Journal of Cosmology and Astroparticle Physics
(2018)
2018,
035
Revisiting non-Gaussianity from non-attractor inflation models
YF Cai, X Chen, MH Namjoo, M Sasaki, DG Wang, Z Wang
– Journal of Cosmology and Astroparticle Physics
(2018)
2018,
012
Universality of multi-field $α$-attractors
A Achúcarro, R Kallosh, A Linde, DG Wang, Y Welling
– Journal of Cosmology and Astroparticle Physics
(2018)
2018,
028
Matter bounce cosmology with a generalized single field: non-Gaussianity and an extended no-go theorem
YB Li, J Quintin, DG Wang, YF Cai
– Journal of Cosmology and Astroparticle Physics
(2017)
2017,
031
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Research Group

Relativity and Gravitation

Room

B0.04

Telephone

01223 765252