Another wonderful visit to ⁦⁦MPI-PKS Dresden comes⁩ to an end. Great to catch up with friends, finish ongoing projects and start new ones. Until next time!

The authors present a phenomenological theory of the dynamical charge response of strange metals based on the analogy to classical fluids near a jamming-like transition. Debanjan Chowdhury Nature Communications nature.com/articles/s4146…

Had a lot of exciting discussions with fellow physicists (and some new friends!) at ⁦Aspen Center for Physics⁩. Hope to be back again soon!

The mandatory photograph in front of IBM quantum system one (with my student Keiran Lewellen) during a recent visit to ⁦IBM Research⁩ for a Cornell University IBM workshop!

A fun collaboration extending over 3 continents led us to unravel a microscopic explanation for unconventional “Planckian” transport in a fascinating material. Aspen Center for Physics played a special role! CornellArts&Sciences Max Planck Society Weizmann Institute U.S. National Science Foundation

PRB Editors' Suggestion: Upper bounds on #superconducting and #excitonic phase stiffness for interacting isolated narrow bands Dan Mao and Debanjan Chowdhury Phys. Rev. B 109, 024507 ➡️ go.aps.org/4aStHM3 #EdSugg #condmat #physics American Physical Society Debanjan Chowdhury CornellArts&Sciences

With my first graduate student, Juan Felipe Mendez-Valderrama, who is now headed to Princeton as a PCCM postdoc fellow! Congratulations Felipe! ⁦CornellArts&Sciences⁩ ⁦⁦Cornell Physics⁩ ⁦Lab of Atomic & Solid State Physics @ Cornell⁩ Princeton Center for Complex Materials⁩

⁦SpaceX⁩ as viewed from the Munger residence in SB!

A new window into Kondo physics, quantum magnetism, and unconventional quantum criticality via tunable moiré materials. The world of two-dimensional electrons never ceases to amaze! CornellArts&Sciences Cornell Physics

Mini ⁦Subir Sachdev⁩ group reunion ⁦Cornell Physics⁩ today!

A featured story on our recent paper out in Physical Review Letters, with mathematically exact implications for superconductivity in twisted bilayer graphene! Kudos to my two former group members, Felipe and Dan!

Please help spread the word for next year’s Boulder School for Condensed Matter and Materials Physics, with an incredible lineup of speakers. Please encourage your students and postdocs to apply (Deadline: January 15). boulderschool.yale.edu/2025/boulder-s… U.S. National Science Foundation CU Boulder 🦬 Yale University

PRB Editors' Suggestion: Correlated #topological mixed-valence insulators in #moiré #heterobilayers J. Felipe Mendez-Valderrama et al., PRB 110, L201105 ➡️ go.aps.org/40IsiVO #PRBLetter #EdSugg American Physical Society #condmat #physics Debanjan Chowdhury CornellArts&Sciences Cornell Physics

In our last paper of 2024, we use renormalization group inspired numerical methods to study an interesting regime of many-body Floquet dynamics. We found that the driven system thermalizes via a sequence of instanton-like events! arxiv.org/abs/2412.10498

PRB Editors' Suggestion: Continuous #WignerMottTransitions at 𝜈=1/5 Thomas G. Kiely and Debanjan Chowdhury Phys. Rev. B 110, L241112 ➡️ go.aps.org/3ZWSnOM #PRBLetter #EdSugg American Physical Society #condmat #physics Debanjan Chowdhury CornellArts&Sciences Kavli Institute for Theoretical Physics

Frozonium — a new paradigm for creating artificial atoms using driven superconducting circuits arxiv.org/abs/2501.10503

Our theory explanation for the Mak-Shan experiments on superconductivity and a correlated insulator in twisted bilayers of WSe2. We propose that the origin of superconducting pairing must lie in the insulator itself! CornellArts&Sciences Nature Communications nature.com/articles/s4146…

Sometimes I am absolutely baffled by the disconnect between the level of public hype created by a company (for investors?) and the core scientific claims!

My first foray into the dynamics of quantum circuits with friend and long-term collaborator Jonathan Ruhman 🎗️! Lots more to come! Collaboration made possible by the USIsraelBSF