Jonah Kudler-Flam

Institute for Advanced Study, Princeton

prof_pic.jpg

267 Bloomberg Hall

1 Einstein Drive

Princeton, NJ 08540

I am a theoretical physicist and currently a Marvin L. Goldberger Member at the Institute for Advanced Study in Princeton, NJ. I was previously a postdoctoral fellow at the Princeton Center for Theoretical Science. I received my Ph.D. in Physics from the University of Chicago, where I worked under the guidance of Shinsei Ryu.

My research is broadly in quantum field theory, quantum gravity, and many-body quantum chaos. I use tools from quantum information theory to explore two closely connected questions:

  1. What is the quantum structure of spacetime, particularly in the contexts of black holes and the early universe?
  2. How does thermal physics emerge from underlying quantum degrees of freedom and chaotic dynamics?

The surprising connection between these seemingly disparate research areas has always captivated me and continues to inspire my work. I talk about this connection in more detail on The Postdoc Path Podcast and in much greater depth in my publications.
If you’re a student interested in theoretical physics, I’m always happy to chat, so please feel free to reach out to me at jkudlerflam@ias.edu.

Beyond research, I’m passionate about teaching and mentorship. Since 2023, I’ve been volunteering with Princeton University’s Prison Teaching Initiative, teaching undergraduate courses to incarcerated students across New Jersey. If you’re interested in getting involved, you can learn more here, or contact me if you’d like to hear more about my experience.

selected publications

  1. 2607.01320.png
    Logarithmic negativity typically equals exact entanglement cost
    Bowen Ouyang and Jonah Kudler-Flam
    arXiv e-prints, Jul 2026
  2. 2605.15180.png
    Wormholes and Averaging over N
    Jonah Kudler-Flam and Edward Witten
    arXiv e-prints, May 2026
  3. Emergent Mixed States for Baby Universes and Black Holes
    Jonah Kudler-Flam and Edward Witten
    arXiv e-prints, Oct 2025
  4. PRD
    2309.15897.png
    Generalized black hole entropy is von Neumann entropy
    Jonah Kudler-Flam, Samuel Leutheusser, and Gautam Satishchandran
    Physical Review D, Jan 2025
  5. PRL
    2102.05053.png
    Relative Entropy of Random States and Black Holes
    Jonah Kudler-Flam
    Physical Review Letters, Apr 2021