# IQIM Postdoctoral and Graduate Student Seminar

*,*Graduate Student, Lukin Group

*,*Harvard University

*,*

**Note: Special time for this talk only, Wednesday, Oct 28 at 11:00 am**

**Abstract:** Neutral atom arrays form a powerful platform for studying and coherently controlling many-body quantum systems. These arrays can be readily scaled to hundreds of individually controlled atoms with flexible, programmable geometries. Strong atomic interactions can be introduced by coherent excitation to Rydberg states, resulting in a rich spin Hamiltonian with variable interaction range, as well as tools for quantum information processing. In this talk, I will discuss two applications of coherent control over 1D atom arrays to create and benchmark entangled states. In the first, we utilize the Rydberg Hamiltonian to globally drive a 20 atom array into a fully entangled SchrÃ¶dinger cat state. In the second, we introduce a new protocol for a universal two-qubit gate on neutral atoms, and demonstrate its parallel implementation on several pairs of qubits. Finally, I will discuss our ongoing work scaling our system to 2D arrays of hundreds of qubits, including preliminary results exploring the phase diagram of 2D arrays as well as applications to graph theory optimization problems.

Attend the talk at: https://caltech.zoom.us/j/97280252054

Talks will also be posted on IQIM's YouTube page https://www.youtube.com/channel/UC5TeDDv2O31r8B47iEUEgNQ