Hi! I am Hernan, a Colombian physicist and Ph.D. candidate at the National Autonomous University of Mexico (UNAM), affiliated with both the Institute of Physics (IF) and the Institute of Physical Sciences (ICF), where I work with Alejandro Aviles and Mariana Vargas.

My research focuses on the large-scale structure of the Universe. I work on perturbation theory and effective field theory approaches. I also study the role of massive neutrinos in cosmic structure formation, and more recently, I have been exploring modified gravity.

I am part of two major international survey collaborations:

• Dark Energy Spectroscopic Instrument (DESI)

• Rubin Observatory Legacy Survey of Space and Time – Dark Energy Science Collaboration (LSST-DESC)

Within DESI, I serve as the topical group lead on neutrinos.

I am also the author of FOLPS, a code that computes the galaxy power spectrum for ΛCDM and cosmologies with massive neutrinos. The code has been widely used within the DESI collaboration and beyond, and is one of the main tools for full-shape analysis.

My research combines theory, data, and computational methods to better understand the fundamental ingredients shaping our cosmos.

I grew up in Barranquilla, Colombia, a vibrant Caribbean city known worldwide as the birthplace of Shakira and Sofia Vergara, where I studied physics at University of Atlantico. Later, I moved to Mexico to continue my academic career, earning a master’s degree and now pursuing my Ph.D. at UNAM.

For more details, see here my Curriculum Vitae.