Bio

Junior Fellow, Simons Society of Fellows (2022 - 2025)
Ph.D., Princeton University (2022)
M.A. (Cantab.), Cambridge University (2018)

I’m broadly interested in theoretical, statistical, and observational cosmology, particularly as applied to galaxy surveys and the Cosmic Microwave Background. Recently, I have worked on measuring, modeling, and interpreting new and old physics in a range of cosmological datasets, and using them to learn about the early Universe. With Mikhail Ivanov and Marko Simonovic, I won the 2024 New Horizons Prize in Physics, for work on the Effective Field Theory of Large Scale Structure.

I am an assistant professor in the Physics deparmtent, affiliated with both the Kavli Institute for Particle Astrophysics and Cosmology (KIPAC) and the Leinweber Institute for Theoretical Physics at Stanford. Please send me an email if you're interested in working with me!

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2025-26 Courses

All Publications

  • Wonderings on wiggly bispectra: Nonlinear evolution and reconstruction of oscillations in the squeezed bispectrum PHYSICAL REVIEW D Goldstein, S., Philcox, O. H. E., Fondi, E., Coulton, W. R. 2025; 112 (8)

    View details for DOI 10.1103/q8m3-vspd

    View details for Web of Science ID 001598985600006

  • Suite of optimal and efficient power spectrum and bispectrum estimators for large-scale structure analyses PHYSICAL REVIEW D Philcox, O. H. E., Floss, T. 2025; 112 (6)

    View details for DOI 10.1103/rr6c-cf3s

    View details for Web of Science ID 001571301500005

  • A Parameter-masked Mock Data Challenge for Beyond-two-point Galaxy Clustering Statistics ASTROPHYSICAL JOURNAL Krause, E., Kobayashi, Y., Salcedo, A. N., Ivanov, M. M., Abel, T., Akitsu, K., Angulo, R. E., Cabass, G., Contarini, S., Cuesta-Lazaro, C., Hahn, C., Hamaus, N., Jeong, D., Modi, C., Nguyen, N., Nishimichi, T., Paillas, E., Ibanez, M., Philcox, O. H. E., Pisani, A., Schmidt, F., Tanaka, S., Verza, G., Yuan, S., Zennaro, M. 2025; 990 (2)

    View details for DOI 10.3847/1538-4357/ad781d

    View details for Web of Science ID 001561554800001

  • Searching for inflationary physics with the CMB trispectrum. II. Code and validation PHYSICAL REVIEW D Philcox, O. H. E. 2025; 111 (12)

    View details for DOI 10.1103/bprw-3zj1

    View details for Web of Science ID 001514484300016

  • Searching for inflationary physics with the CMB trispectrum. I. Primordial theory and optimal estimators PHYSICAL REVIEW D Philcox, O. H. E. 2025; 111 (12)

    View details for DOI 10.1103/wkj2-q62t

    View details for Web of Science ID 001514484300011

  • Searching for inflationary physics with the CMB trispectrum. III. Constraints from<i> Planck</i> PHYSICAL REVIEW D Philcox, O. H. E. 2025; 111 (12)

    View details for DOI 10.1103/y81z-g7th

    View details for Web of Science ID 001514484300005

  • Integrated Sachs-Wolfe lensing bispectrum and trispectrum PHYSICAL REVIEW D Philcox, O. H. E., Hill, J. 2025; 111 (12)

    View details for DOI 10.1103/wsjw-32l6

    View details for Web of Science ID 001523437700011

  • Non-Gaussianity beyond the scalar sector: A search for tensor and mixed tensor-scalar bispectra with Planck data PHYSICAL REVIEW D Philcox, O. H. E., Shiraishi, M. 2025; 111 (12)

    View details for DOI 10.1103/pb7x-lp19

    View details for Web of Science ID 001511064200008

  • Searching for inflationary particle production in<i> Planck</i> data PHYSICAL REVIEW D Philcox, O. H. E., Kumar, S., Hill, J. 2025; 111 (10)

    View details for DOI 10.1103/PhysRevD.111.103523

    View details for Web of Science ID 001494567200002

  • Cosmology intertwined: A review of the particle physics, astrophysics, and cosmology associated with the cosmological tensions and anomalies JOURNAL OF HIGH ENERGY ASTROPHYSICS Abdalla, E., Abellan, G., Aboubrahim, A., Agnello, A., Akarsu, O., Akrami, Y., Alestas, G., Aloni, D., Amendola, L., Anchordoqui, L. A., Anderson, R. I., Arendse, N., Asgari, M., Ballardini, M., Bargerx, V., Basilakos, S., Batista, R. C., Battistelli, E. S., Battye, R., Benetti, M., Benisty, D., Berlin, A., de Bernardis, P., Berti, E., Bidenko, B., Birrer, S., Blakeslee, J. P., Boddy, K. K., Bom, C. R., Bonilla, A., Borghi, N., Bouchet, F. R., Braglia, M., Buchert, T., Buckley-Geer, E., Calabrese, E., Caldwell, R. R., Camarena, D., Capozziello, S., Casertano, S., Chen, A., Chen, G., Chen, H., Chluba, J., Chudaykin, A., Cicoli, M., Copi, C. J., Courbin, F., Cyr-Racine, F., Czerny, B., Dainotti, M., D'Amico, G., Davis, A., Perez, J., de Haro, J., Delabrouille, J., Denton, P. B., Dhawan, S., Dienes, K. R., Di Valentino, E., Du, P., Eckert, D., Escamilla-Rivera, C., Ferte, A., Finelli, F., Fosalba, P., Freedman, W. L., Frusciante, N., Gaztanaga, E., Giare, W., Giusarma, E., Gomez-Valent, A., Handley, W., Harrison, I., Hart, L., Hazra, D., Heavens, A., Heinesen, A., Hildebrandt, H., Hill, J., Hogg, N. B., Holz, D. E., Hooper, D. C., Hosseininejad, N., Huterer, D., Ishak, M., Ivanov, M. M., Jaffe, A. H., Jang, I., Jedamzik, K., Jimenez, R., Joseph, M., Joudaki, S., Kamionkowski, M., Karwal, T., Kazantzidis, L., Keeley, R. E., Klasen, M., Komatsu, E., Koopmans, L. V. E., Kumar, S., Lamagna, L., Dn, R., Lee, C., Lesgourgues, J., Said, J., Lewis, T. R., L'Huillier, B., Lucca, M., Maartens, R., Macri, L. M., Marfatia, D., Marra, V., Martins, C. P., Masi, S., Matarrese, S., Mazumdar, A., Melchiorri, A., Mena, O., Mersini-Houghton, L., Mertens, J., Milakovic, D., Minami, Y., Miranda, V., Moreno-Pulido, C., Moresco, M., Mota, D. F., Mottola, E., Mozzon, S., Muir, J., Mukherjee, A., Mukherjee, S., Naselsky, P., Nath, P., Nesseris, S., Niedermann, F., Notari, A., Nunes, R. C., Colgain, E. O., Owens, K. A., Ozulker, E., Pace, F., Paliathanasis, A., Palmese, A., Pan, S., Paoletti, D., Bergliaffa, S., Perivolaropoulos, L., Pesce, D. W., Pettorino, V., Philcox, O. H. E., Pogosian, L., Poulin, V., Poulot, G., Raveri, M., Reid, M. J., Renzi, F., Riess, A. G., Sabla, V., Salucci, P., Salzano, V., Saridakis, E. N., Sathyaprakash, B. S., Schmaltz, M., Schoneberg, N., Scolnic, D., Sen, A. A., Sehgal, N., Shafieloo, A., Sheikh-Jabbari, M. M., Silk, J., Silvestri, A., Skaraj, F., Sloth, M. S., Soares-Santos, M., Peracaula, J., Songsheng, Y., Soriano, J. F., Staicova, D., Starkman, G. D., Szapudi, I., Teixeira, E. M., Thomas, B., Treu, T., Trott, E., van de Ruck, C., Vazquez, J., Verde, L., Visinelli, L., Wang, D., Wang, J., Wang, S., Watkins, R., Watson, S., Webb, J. K., Weiner, N., Weltman, A., Witte, S. J., Wojtak, R., Yadav, A., Yang, W., Zhao, G., Zumalacarregui, M. 2022; 34: 49-211

    View details for DOI 10.1016/j.jheap.2022.04.002

    View details for Web of Science ID 000807122400002

  • The clustering of the SDSS-IV extended baryon oscillation spectroscopic survey DR16 luminous red galaxy and emission-line galaxy samples: cosmic distance and structure growth measurements using multiple tracers in configuration space MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Wang, Y., Zhao, G., Zhao, C., Philcox, O. H. E., Alam, S., Tamone, A., de Mattia, A., Ross, A. J., Raichoor, A., Burtin, E., Paviot, R., de la Torre, S., Percival, W. J., Dawson, K. S., Gil-Marin, H., Bautista, J. E., Hou, J., Koyama, K., Peacock, J. A., Ruhlmann-Kleider, V., des Bourboux, H., Chuang, C., Comparat, J., Escoffier, S., Kneib, J., Mueller, E., Newman, J. A., Rossi, G., Shafieloo, A., Schneider, D. P. 2020; 498 (3): 3470–83

    View details for DOI 10.1093/mnras/staa2593

    View details for Web of Science ID 000587752500030

https://orcid.org/0000-0002-3033-9932