Upcoming and Previous Seminars (Past months or Previous years)

Note that if the talk's pdf or ppt is available after the talk, you can get it by clicking on the talk title.

Physics/Astronomy C290C Cosmology and Cosmology-BCCP Seminar
The Physics/Astronomy C290C series consists of the Cosmology-BCCP LBNL-Physics-Astronomy Cosmology seminars held Tuesdays 1:10-2:00 pm .
in room 131 Campbell Hall. . Please don't bring your lunch (it is hard to keep this room clean; this is a change).
Please mail Joanne Cohn to add to this list or to suggest speakers.

This seminar is intended for BCCP members and Berkeley graduate students pursuing their dissertation research in cosmology. Other LBL, Berkeley Astronomy and and Berkeley Physics Department members are welcome. If the talk is on ZOOM, members of the Berkeley Astronomy/Physics and Cosmology communities can email Joanne Cohn for information.

Speaker/Visitor Info is here.
Past months or Previous years

BOSS and Nyx
(Image by C. Stark)

Note that there are also other talks which might be of interest, including:

Monday
- BIDS Machine Learning and Science Forum noon, some weeks, also sometimes other days
- Theoretical Astrophysics Center Seminars (Mondays, 12:10 pm, 131 Campbell Hall)
- This week in particle theory 12:30 talk on campus
- Physics Dept. Colloquia (Mondays, 4:15 pm, Physics North Lecture Hall 1)
Tuesday
- arXiv discussion: Cosmology, Astrophysics, Neutrino arXiv Discussion (Tuesdays 11:15 am, Cosmology Commons, 3rd floor Campbell south side ). Sign up and vote for papers at http://www.benty-fields.com/ . Our group is called "Berkeley Cosmology".
- This week in particle theory 3:40 pm talk on campus
- Tuesday RPM's at LBNL (4 pm, 50A-5132)
Wednesday
- DESI group lunch, LBL, 12-1 pm, 50-5132-
- This week in particle theory talks at 2pm at LBL and 3:40pm on campus
Thursday
- Astro Thursday Short Talks ( short talks/paper discussions/talks by visitors), 12:40 -1:30 pm ZOOM or in person
- Astronomy Colloquium (3:30 pm, 1 Physics North or ZOOM if speaker is not able to come in person)
- Thursday RPM's at LBNL (4 pm, 50A-5132)
Friday
- INPA journal club (Friday at noon, occasionally other days, in LBNL, 50-5132).

August 2025

Aug 18, Monday
11 am (CS/DD Seminar)
Ben Horowitz , University of Tokyo
LBL 50A-5132
Novel Forward Models for Field-Level Inference in Cosmology and Astrophysics
Disentangling complex astrophysical processes—such as baryonic feedback—from the underlying cosmological signal is critical as observations probe ever-smaller scales. Yet, no existing simulation framework has self-consistently reproduced more than a handful of key cosmological observables.
In this talk, I will present recent advances in differentiable hydrodynamical simulations that enable rapid exploration of high-dimensional parameter spaces. These forward models allow in situ training of embedded neural networks, which can either constrain flexible subgrid physics models or accelerate the underlying simulation itself. I will also discuss complementary stochastic interpolant based approaches, that provide fast and accurate alternatives for forward modeling when trained on existing simulations.

September 2025

Sep 2, Tuesday
1:10 pm (BCCP/Cosmology seminar)
First meeting , one minute slides
Campbell 131

Sep 9, Tuesday
1:10 pm (BCCP/Cosmology seminar)
Emmanuel Schaan, Stanford
Campbell 131
tba

Sep 16, Tuesday
1:10 pm (BCCP/Cosmology seminar)
John Franklin Crenshaw, Stanford/SLAC
Campbell 131
tba

Sep 23, Tuesday
1:10 pm (BCCP/Cosmology seminar)
Dhayaa Anbajagane, Chicago
Campbell 131
tba

Sep 30, Tuesday
1:10 pm (BCCP/Cosmology seminar)
Raagini Patki, Cornell
Campbell 131
tba

October 2025

Oct 7, Tuesday
1:10 pm (BCCP/Cosmology seminar)
Zack Li, UCB
Campbell 131
tba

Oct 14, Tuesday
1:10 pm (BCCP/Cosmology seminar)
,
Campbell 131
tba

Oct 21, Tuesday
1:10 pm (BCCP/Cosmology seminar)
,
Campbell 131
tba

Oct 28, Tuesday
1:10 pm (BCCP/Cosmology seminar)
Irene Abril Cabezas, Cambridge
Campbell 131
tba

Past Months

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