The Dirac Lectures is an initiative of Florida State University to celebrate the memory of Paul Dirac, late FSU physics faculty member, Nobel prize laureate, and namesake of the Dirac Science Library. These lectures bring outstanding speakers to FSU to present physics topics of particular interest and notability.
2025 Dirac Lectures on Cosmology Beyond the Λ-CDM Model
The 2025 Dirac lecture series is dedicated to the subject of Cosmology Beyond the Λ-CDM Model with a special focus on tensions that have emerged between cosmological and astrophysical data and the standard cosmological model. The lectures will be held at the Department of Physics at Florida State University on April 16-18, 2025.
Special Public Lecture
 |
| Adam Riess |
| Johns Hopkins University |
On Thursday April 17th, 2025, Nobel laureate and professor Adam Riess will deliver the lecture The Surprising Expansion History of the Universe. This special lecture is open to the general public and will take place at 7 p.m. in the auditorium at the FSU Department of Earth, Ocean and Atmospheric Science (EOAS).
During the lecture professor Riess will describe how his team discovered the acceleration of the Universe and why understanding the nature of so-called "dark energy" presents one of the greatest remaining challenges in astrophysics and cosmology. He will also discuss recent evidence that the Universe continues to defy our best efforts to predict its behavior.
Guest Lecturers
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 |
 |
| Adam Riess | David J. Schlegel | Licia Verde |
| Johns Hopkins University | University of California, Berkeley | University of Barcelona |
2025 Lecture Schedule
| Date and times (EDT) | Location | Lecturer | Topic | Link to streaming session |
|
4/16/2025, 10 a.m. to 11:30 a.m. |
Keen 701 | Licia Verde | Status Report of the Λ-CDM Model |
Link L1 |
|
4/16/2025, 1:30 to 3 p.m. |
Keen 701 | David J. Schlegel | Measurement Techniques of Modern Cosmologist | Link L2 |
|
4/17/2025, 10 to 11:30 a.m. |
Keen 701 | Licia Verde | Status Report of the Λ-CDM Model |
Link L3 |
|
4/17/2025, 1:30 to 3 p.m. |
Keen 701 | David J. Schlegel | 3D Map from DESI and Future Redshift Surveys | Link L4 |
|
4/18/2025, 10 to 11:30 a.m. |
Keen 701 | Adam Riess | Dark Energy | Link L5 |
|
4/18/2025, 1:30 to 3 p.m. |
Keen 701 | Adam Riess | Hubble Constant Tension | Link L6 |
Previous Lecture Series
| Date | Subject | Lecturers |
| February 15-17, 2023 | Effective Field Theories |
Zvi Bern (University of California, Los Angeles) Yuval Grossman (Cornell University) David B. Kaplan (University of Washington, Seattle) |
| November 1-5, 2021 | Quantum Information Science |
Martin Savage (University of Washington, Seattle) Steve Simon (University of Oxford) Birgitta Whaley (University of California, Berkeley) |
| October 19-23, 2020 | Gravitational Waves |
Rainer Weiss (Massachusetts Institute of Technology) Daniel Holz (KICP, University of Chicago) Chung-Pei Ma (University of California, Berkeley) Hitoshi Murayama (Kavli IPMU and University of California, Berkeley) |
| March 28-30, 2016 | Neutrinos in Nuclear Physics, Particle Physics and Astrophysics |
Wick Haxton (UC Berkeley) Pierre Ramond (U. of Florida) John Carlstrom (U. of Chicago) |
| November 28-30, 2011 | Strong Dynamics and Electroweak Symmetry Breaking |
Markus Luty (UC Davis) John Terming (UC Davis) |
| April 21-23, 2010 | Effective Field Theories and Collider Physics | Ira Rothstein (Carnegie Mellon U.) Christian Bauer (LBNL) |
| March 26-28, 2008 | Cosmology: From Inflation to the Cosmic Microwave Background |
William H. Kinney (SUNY at Buffalo) Arthur Kosowsky (U. of Pittsburgh) |
| March 14-16, 2007 | Twistor Methods in Higher Order Loop Amplitudes |
Carola Berger (SLAC) Radu Roiban (Penn State) |
Organizing Committee
Nick Bonesteel, Fernando Febres Cordero, Takemichi Okui, Jorge Piekarewicz, Laura Reina, Nao Suzuki and Kohsaku Tobioka
Contact
You can get further information by writing to dirac-lectures@physics.fsu.edu.