**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**

### 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.

### October 1, 2019

Ricardo Gutierrez-Jauregui joins the group as a postdoc. Welcome Ricardo!

### August 26, 2019

Ana gives a talk on dark states in atomic arrays at the Conference on Quantum Information and Quantum Control at the Fields Institute in Toronto.

### August 4, 2019

Ana gives a talk at the Rochester Conference on Coherence and Quantum Optics.

### June 6, 2019

Our paper Optical waveguiding by atomic entanglement in multilevel atom arrays is now posted on the arXiv!

### May 30, 2019

Our paper Cavity quantum electrodynamics with atom-like mirrors is published in Nature. Go here for a nice explanation of the physics written by Prof. Painter.