Staff Profile

I am a theoretical cosmologist working on modelling the cosmic large-scale structure and using it to probe fundamental physics and cosmology. I am deputy lead of the Cosmology & Quantum Gravity research group and member of the Observational Astronomy research group.

Before I came to Newcastle, I was a Research Associate in the group of Paul Shellard at The Stephen Hawking Centre for Theoretical Cosmology in Cambridge and a Research Fellow at Fitzwilliam College (2017-2019). Earlier, I was a PostDoc at the Delta Institute for Theoretical Physics in the group of Enrico Pajer at Utrecht University (2015-2017). I finished my PhD in Theoretical Cosmology in 2015 at the LMU Munich, supervised by Stefan Hofmann.

Together with Ulrike Böhm, I am running the facebook page for female physicists, called 'Physikerinnen'. Every week, we highlight an excellent woman in physics (from student to professor) as 'female physicist of the week'. 

If you want to learn more about me and my research, I answered some questions for:

• Lindau Nobel Laureate Meetings discussion on Women in Science 2020
• Newcastle Women in STEM page
• Cambridge Women in STEM page
• Women in Research Blog
• Fitzwilliam College Magazine Optima
• German Youth magazine jetzt.de (in German)

My work aims at unravelling the mysteries of our universe with cosmological data. Galaxy surveys such as Euclid will map the galaxy distribution covering unprecedented vast areas of the sky and long periods of cosmic history by measuring distances & shapes of billions of galaxies tracing the cosmic large scale structure.

My research is at the heart of the precision cosmology challenge:  Modelling nonlinear gravitational dynamics and extracting fundamental physics from galaxy clustering. Gravitational clustering describes the formation of bound objects from initially small perturbations. Much of the physical information is hidden on small scales, on which matter has clustered nonlinearly and is not well characterised by Gaussian statistics. I develop analytical methods for the nonlinear regime that can be combined with numerical simulations and design clustering statistics that are statistically informative and robustly predictable to extract physical insights from galaxy surveys.

2022-2023

Semester 1: General Relativity for Stage 4 Mathematics & Physics students

Semester 2: Dynamics for Stage 1 Mathematics & Physics students

2021-2022

Semester 1: General Relativity for Stage 4 Mathematics & Physics students

Semester 2: Dynamics for Stage 1 Mathematics & Physics students

2020-2021

Semester 1: General Relativity for Stage 4 Mathematics & Physics students

Semester 2: Dynamics for Stage 1 Mathematics & Physics students

2019-2020

Semester 2: MAS2603 - Group Project Module for Stage 2 Mathematics students. 

• Articles

  • Cataneo M, Uhlemann C, Arnold C, Gough A, Li B, Heymans C. The matter density PDF for modified gravity and dark energy with Large Deviations Theory. Monthly Notices of the Royal Astronomical Society 2022, 513(2), 1623-1641.
  • Boyle A, Uhlemann C, Friedrich O, Barthelemy A, Codis S, Bernardeau F, Giocoli C, Baldi M. Nuw CDM cosmology from the weak lensing convergence PDF. Monthly Notices of the Royal Astronomical Society 2021. Submitted.
  • Hahn O, Rampf C, Uhlemann C. Higher-order initial conditions for mixed baryon-CDM simulations. Monthly Notices of the Royal Astronomical Society 2021, 503(1), 426–445.
  • Rampf C, Uhlemann C, Hahn O. Cosmological perturbations for two cold fluids in ΛCDM. Monthly Notices of the Royal Astronomical Society 2021, 503(1), 406-425.
  • Villaescusa-Navarro F, Hahn C, Massara E, Banerjee A, Delgado A, Ramanah D, Charnock Tom, Giusarma E, Li Y, Allys E, Brochard A, Uhlemann C, Chiang C, He S, Pisani A, Obuljen A, Feng Y, Castorina E, Contardo G, Kreisch C, Alsing J, Scoccimarro R, Verde L, Viel M, Ho S, Mallat S, Wandelt B, Spergel DN. The Quijote Simulations. The Astrophysical Journal Supplement Series 2020, 250(1), 2.
  • Friedrich O, Uhlemann C, Villaescusa-Navarro F, Baldauf T, Manera M, Nishimichi T. Primordial non-Gaussianity without tails – how to measure f_NL with the bulk of the density PDF. Monthly Notices of the Royal Astronomical Society 2020, 498(1), 464-483.
  • Uhlemann C, Friedrich O, Villaescusa-Navarro F, Banerjee A, Codis S. Fisher for complements: extracting cosmology and neutrino mass from the counts-in-cells PDF. Monthly Notices of the Royal Astronomical Society 2020, 495(4), 4006-4027.
  • Barthelemy A, Codis S, Uhlemann C, Bernardeau F, Gavazzi R. A nulling strategy for modelling lensing convergence in cones with large deviation theory. Monthly Notices of the Royal Astronomical Society 2020, 492(3), 3420-3439.
  • Leicht O, Uhlemann C, Villaescusa-Navarro F, Codis S, Hernquist L, Genel S. Extreme Spheres: Counts-in-cells for 21cm intensity mapping. Monthly Notices of the Royal Astronomical Society 2019, 484(1), 269-281.
  • Uhlemann C, Rampf C, Gosenca M, Hahn O. A semiclassical path to cosmic large-scale structure. Physical Review D 2019, 99, 083524.
  • Uhlemann C, Pajer E, Pichon C, Nishimichi T, Codis S, Bernardeau F. Hunting high and low: Disentangling primordial and late-time non-Gaussianity with cosmic densities in spheres. Monthly Notices of the Royal Astronomical Society 2018, 474(3), 2853-2870.
  • Uhlemann C. Finding closure: approximating Vlasov-Poisson using finitely generated cumulants. Journal of Cosmology and Astroparticle Physics 2018, 2018(10), 030.
  • Uhlemann C, Pichon C, Codis S, L'Huillier B, Kim J, Bernardeau F, Park C, Prunet S. Cylinders out of a top hat: counts-in-cells for projected densities. Monthly Notices of the Royal Astronomical Society 2018, 477(2), 2772-2785.
  • Uhlemann C, Codis S, Kim J, Pichon C, Bernardeau F, Pogosyan D, Park C, L'Huillier B. Beyond Kaiser bias: mildly non-linear two-point statistics of densities in distant spheres. Monthly Notices of the Royal Astronomical Society 2017, 466(2), 2067-2084.
  • Uhlemann C, Feix M, Codis S, Pichon C, Bernardeau F, L'Huillier B, Kim J, Hong SE, Laigle C, Park C, Shin J, Pogosyan D. A question of separation: disentangling tracer bias and gravitational nonlinearity with counts-in-cells statistics. Monthly Notices of the Royal Astronomical Society 2017, 473(4), 5098-5112.
  • Kopp M, Uhlemann C, Achitouv I. Gaussian streaming with the truncated Zel'dovich approxmation. Physical Review D 2016, 94, 123522.
  • Codis S, Pichon C, Bernardeau F, Uhlemann C, Prunet S. Encircling the dark: constraining dark energy via cosmic density in spheres. Monthly Notices of the Royal Astronomical Society 2016, 460(2), 1549-1554.
  • Uhlemann C, Codis S, Pichon C, Bernardeau F, Reimberg P. Back in the saddle: Large-deviation statistics of the cosmic log-density field. Monthly Notices of the Royal Astronomical Society 2016, 460(2), 1529-1541.
  • Uhlemann C, Kopp M, Haugg T. Edgeworth streaming model for redshift space distortions. Physical Review D 2015, 92(6), 063004.
  • Uhlemann C, Kopp M. Coarse-grained cosmological perturbation theory: stirring up the dust model. Physical Review D 2015, 91(8), 084010.
  • Uhlemann C, Kopp M, Haugg T. Schrödinger method as N-body double and UV completion of dust. Physical Review D 2014, 90(2), 023517.
  • Kopp M, Uhlemann C, Haugg T. Newton to Einstein - dust to dust. Journal of Cosmology and Astroparticle Physics 2014, 2014(3), 018.