Welcome to the Asenjo-Garcia research group at Columbia University.

In our theory group we investigate problems at the intersection of quantum optics, atomic physics, open quantum systems, and condensed-matter physics. In particular, a significant part of our research focuses on emergent phenomena that arises from photon-mediated atomic interactions. We are interested not only in understanding fundamental physics associated with strongly-interacting atoms and photons but also in how to exploit these phenomena to develop novel applications in quantum information science, sensing, and metrology.

News

August 20, 2020

Our paper Many-body signatures of collective decay in atomic chains hits the arXiv!

July 16, 2020

Our paper Flat Bands and Chiral Optical Response of Moiré Insulators is now published in PRL.

June 24, 2020

Our collaboration with experimentalists at Columbia on Nonlinear twistoptics at symmetry-broken interfaces is now on the arXiv.

June 1, 2020

Ana gives a (virtual) lecture at DAMOP.

February 25, 2020

Our paper Flat bands and chiral optical response of twisted bilayer insulators is now posted on the arXiv.

December 16, 2019

Our paper Atomic-Waveguide Quantum Electrodynamics is now posted on the arXiv.

November 26, 2019

Our paper Optical waveguiding by atomic entanglement in multilevel atom arrays is now published in PNAS.

October 7, 2019

Ana gives three lectures at Les Houches School of Physics. The topic of the workshop is interaction of light and cold atoms.

September 1, 2019

We have received two QII-TAQS grants from NSF! For more information click here and here. Here and here are Columbia’s press releases.

Recent publications

2020

Flat bands and chiral optical response of Moiré insulators

H. Ochoa and A. Asenjo-Garcia
Physical Review Letters 125, 037402 (2020)

Nonlinear twistoptics at symmetry-broken interfaces

K. Yao, N. R. Finney, et al.
arXiv:2006.13802 (2020)

Many-body signatures of collective decay in atomic chains

S. J. Masson, I. Ferrier-Barbut, L. A. Orozco, A. Browaeys, and A. Asenjo-Garcia
arXiv:2008.08139 (2020)
2019

Optical waveguiding by atomic entanglement in multilevel atom arrays

A. Asenjo-Garcia, H. J. Kimble, and D. E. Chang
Proceedings of the National Academy of Sciences 116, 25503 (2019)