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Faculty of Mathematics

 

Professor Blake Sherwin

Career

  • 2024-: Professor of Cosmology and Astrophysics, DAMTP, University of Cambridge (and Deputy Director, Kavli Institute for Cosmology Cambridge, 2026-)
  • 2022-2024: Professor of Cosmology and Astrophysics (Grade 11), DAMTP, University of Cambridge
  • 2017-2022: Assistant Professor, DAMTP, University of Cambridge
  • 2017-2022: STFC Ernest Rutherford Fellow, DAMTP, University of Cambridge
  • 2016-2017: NASA Einstein Fellow, Physics Division, Lawrence Berkeley Laboratory
  • 2013-2016: Miller Research Fellow, Dept. of Physics, University of California, Berkeley
  • 2008-2013: Ph.D. in Physics, Princeton University
  • 2004-2008: Part III Mathematics and Parts I/II NST Physics, University of Cambridge

Research Interests

Blake is a theoretical and observational cosmologist. He has research interests across CMB and large-scale structure, with a particular focus on measurements of the gravitational lensing and scattering of the CMB.

Research Group

Blake leads the CosMicBacklight project, funded by a Consolidator Grant from the European Research Council (2026-). Group members and affiliates include:

Postdoctoral and senior researchers: 

Alex Lague

Jordan Krywonos

Ola Kusiak

Fiona McCarthy (now affiliated Royal Society University Research Fellow)

Niall MacCrann (now affiliated Royal Society University Research Fellow)

co-mentored postdocs (primarily IoA-based): Emilie Hertig, Bernardita Ried Guachalla

PhD students:

Irene Abril Cabezas

Carmen Embil-Villagra

Joseph Thornton

Guanming Liang

 

Former group members and next steps:

postdocs: Toshiya Namikawa (postdoc/SRA -> Project Associate Professor, IPMU), Louis Legrand (SNSF postdoc-> faculty, CBPF, Brazil), Giulio Fabbian (postdoc->Snr. Staff Scientist, CNRS), Boris Bolliet (postdoc/SRA -> Asst. Teaching Professor, Cambridge), Dongwon Han (postdoc -> tech. industry)

students: Gerrit Farren (PhD -> Chamberlain Fellow, LBNL), Frank Qu (PhD -> Hubble Fellow, Stanford), Omar Darwish (PhD -> postdoc U Geneva); Boryana Hadzhiyska (Masters -> PhD Harvard), Oliver Philcox (Masters -> PhD Princeton), Alex Reeves (Masters-> PhD ETH Zurich)

 

Blake's recent awards/honors also include an ERC Starting Grant (the CMBLENS project, 2020-2026) and the Royal Astronomical Society's Early Career Award (2019).

 

 

Publications

A halo model of extragalactic contamination to CMB lensing, delensing, and cross-correlations
AB Lizancos, W Coulton, A Challinor, BD Sherwin, Y Mehta
– Journal of Cosmology and Astroparticle Physics
(2025)
2025,
031
(doi: 10.1088/1475-7516/2025/11/031)
Evidence for large baryonic feedback at low and intermediate redshifts from kinematic Sunyaev-Zel'dovich observations with ACT and DESI photometric galaxies
B Hadzhiyska, S Ferraro, BR Guachalla, E Schaan, J Aguilar, S Ahlen, N Battaglia, JR Bond, D Brooks, E Calabrese, SK Choi, T Claybaugh, WR Coulton, K Dawson, M Devlin, B Dey, P Doel, AJ Duivenvoorden, J Dunkley, GS Farren, A Font-Ribera, JE Forero-Romero, PA Gallardo, E Gaztañaga, SG Gontcho et al.
– Physical Review D
(2025)
112,
083509
(doi: 10.1103/kclp-x5j1)
The Simons Observatory: science goals and forecasts for the enhanced Large Aperture Telescope
M Abitbol, I Abril-Cabezas, S Adachi, P Ade, AE Adler, P Agrawal, J Aguirre, Z Ahmed, S Aiola, T Alford, A Ali, D Alonso, MA Alvarez, R An, K Arnold, P Ashton, Z Atkins, J Austermann, S Azzoni, C Baccigalupi, AB Lizancos, D Barron, P Barry, J Bartlett, N Battaglia et al.
– Journal of Cosmology and Astroparticle Physics
(2025)
2025,
034
(doi: 10.1088/1475-7516/2025/08/034)
Probing inflationary gravitational waves with cross-correlations: Improved forecasting and validation with simulations
T Namikawa, I Abril-Cabezas, BD Sherwin
– Physical Review D
(2025)
112,
01
(doi: 10.1103/bwdp-kf8l)
Impact of Galactic non-Gaussian foregrounds on CMB lensing measurements
I Abril Cabezas
– Physical Review D
(2025)
112,
023522
(doi: 10.1103/jhmr-mg6w)
Cosmological constraints from the cross-correlation of DESI Luminous Red Galaxies with CMB lensing from Planck PR4 and ACT DR6
N Sailer, J Kim, S Ferraro, MS Madhavacheril, M White, I Abril-Cabezas, JN Aguilar, S Ahlen, JR Bond, D Brooks, E Burtin, E Calabrese, S-F Chen, SK Choi, T Claybaugh, K Dawson, A de la Macorra, J DeRose, A Dey, B Dey, P Doel, J Dunkley, C Embil-Villagra, GS Farren, A Font-Ribera et al.
– Journal of Cosmology and Astroparticle Physics
(2025)
2025,
008
(doi: 10.1088/1475-7516/2025/06/008)
Accelerated inference on accelerated cosmic expansion: New constraints on axionlike early dark energy with DESI BAO and ACT DR6 CMB lensing
FJ Qu, KM Surrao, B Bolliet, JC Hill, BD Sherwin, HT Jense, A La Posta
– Physical Review D
(2025)
111,
123507
(doi: 10.1103/xhh6-9v62)
The Atacama Cosmology Telescope: Large-scale velocity reconstruction with the kinematic Sunyaev-Zel'dovich effect and DESI LRGs
F McCarthy, N Battaglia, R Bean, JR Bond, H Cai, E Calabrese, WR Coulton, MJ Devlin, J Dunkley, S Ferraro, V Gluscevic, Y Guan, JC Hill, MC Johnson, A Kusiak, A Laguë, N MacCrann, MS Madhavacheril, K Moodley, S Naess, FJ Qu, BR Guachalla, N Sehgal, BD Sherwin, C Sifón et al.
– Journal of Cosmology and Astroparticle Physics
(2025)
2025,
057
(doi: 10.1088/1475-7516/2025/05/057)
Atacama Cosmology Telescope DR6 and DESI: Structure growth measurements from the cross-correlation of DESI legacy imaging galaxies and CMB lensing from ACT DR6 and Planck PR4
FJ Qu, Q Hang, G Farren, B Bolliet, JN Aguilar, S Ahlen, S Alam, D Brooks, Y-C Cai, E Calabrese, T Claybaugh, A de la Macorra, MJ Devlin, P Doel, C Embil-Villagra, S Ferraro, A Font-Ribera, JE Forero-Romero, E Gaztañaga, V Gluscevic, SGA Gontcho, G Gutierrez, C Howlett, R Kehoe, J Kim et al.
– Physical Review D
(2025)
111,
103503
(doi: 10.1103/PhysRevD.111.103503)
The Atacama Cosmology Telescope: Multi-probe cosmology with unWISE galaxies and ACT DR6 CMB lensing
GS Farren, A Krolewski, FJ Qu, S Ferraro, E Calabrese, J Dunkley, CE Villagra, JC Hill, J Kim, MS Madhavacheril, K Moodley, LA Page, B Partridge, N Sehgal, BD Sherwin, C Sifón, ST Staggs, A Van Engelen, EJ Wollack
– Physical Review D
(2025)
111,
083516
(doi: 10.1103/physrevd.111.083516)
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Research Group

Relativity and Gravitation

Email

bds30@damtp.cam.ac.uk

Room

B2.06

Telephone

01223 337906

Study at Cambridge

About the University

Research at Cambridge