Dr Carlos Garcia Garcia is a cosmologist working at the interface of data and theory to understand the nature of dark energy. He received his PhD in 2020 from the University of Barcelona and has spent the past five years as a Beecroft Fellow at the University of Oxford. Carlos is active in the Vera C. Rubin Observatory’s Dark Energy Science Collaboration, where he has held different leadership roles, most recently serving as co-convener of the Weak Lensing and Large-Scale Structure working group. He is also a member of Euclid.
Carlos's research focuses on dark energy, modified gravity, and model-independent tests of cosmology. He works extensively with different large-scale structure probes to identify potential cracks in LCDM. Carlos developed COSMOTHEKA, a flexible catalog-to-cosmology pipeline integrating 23 datasets (galaxy clustering, weak lensing, CMB lensing, and gas tracers) to enable consistent cross-survey analyses. It has been extremely useful at Oxford, supporting cosmic growth reconstructions, analyses of the S₈ tension and baryonic effects, among others. Carlos hopes it will be equally valuable at the WCA and he looks forward to building new collaborations.
Outside research, Carlos enjoys hiking and climbing, and previously trained martial arts; in particular, Sanda and Wushu.
Welcome Carlos!