I am a postdoctoral scholar at the University of Chicago and Fermilab, where I hold an NSF Astronomy and Astrophysics Postdoctoral Fellowship and a Schramm Fellowship in Experimental Astrophysics. My research in experimental cosmology focuses on understanding the physics of the very early Universe and constraining potential extensions to the \(\Lambda CDM\) cosmological model.  Much of this work involves developing novel millimeter-wave instruments to measure faint, diffuse backgrounds from early times: the cosmic microwave background (CMB) and the integrated emission of high-redshift galaxies (line intensity mapping, or LIM).  Projects that I work on include:

  • SPT-SLIM: a LIM pathfinder for the South Pole Telescope (co-PI)
  • CMB-S4: the next-generation CMB experiment (L3 lead for Small-Aperture Telescope calibration)
  • SuperSpec: a millimeter-wave on-chip spectrometer for surveys of high-redshift galaxies
  • BICEP/Keck Array: constraining inflation with degree-scale CMB polarization at the South Pole

I organized the 2021 LIM Workshop, hosted by the Kavli Institute for Cosmological Physics (KICP), and led a white paper on mm-wave LIM for the 2021 DOE Snowmass process.

From 2017 to 2020 I was a Grainger and KICP Fellow at the University of Chicago.  In 2017 I completed my Ph.D. in the Harvard CMB Lab advised by John Kovac, and before that I was an undergraduate at Caltech.

email: kkarkare{at}kicp.uchicago.edu