Quantum Science Seminar #33 - Young Researchers

This week in the Quantum Science Seminar: The three young researchers Jessie Zhang, Ryan Macdonnell and Gonzalo Carvacho

Jessie Zhang about "Assembly of a single rovibrational ground state molecule in an optical tweezer"

Ultracold molecules hold promise for various quantum science applications that could utilize their long-range dipole-dipole interactions and rich internal structures. Trapping and manipulating molecules in optical tweezers offer many advantages due to their high level of controllability. In this talk, I will discuss our recent results in forming a single NaCs molecule in its rovibrational ground state starting from a pair of atoms in an optical tweezer. This is achieved by first magnetoassociating into a Feshbach molecule and then applying a Raman pulse which gives rise to coherent Rabi oscillations between the ground state. Our work opens up exciting possibilities with fully quantum-state-controlled molecules in optical tweezer arrays.

Ryan Macdonnell about "Analog quantum simulation of chemical dynamics"

Quantum chemical simulation is a challenging task for classical computers due to the rapid growth of information with system size. Quantum computing techniques may alleviate this issue, but to date demonstrations have been limited to static properties of small systems. We show how analog quantum simulation can be used to study chemical dynamics governed by vibronic coupling Hamiltonians. Our approach uses an optimal, linear mapping of vibrational modes and electronic states of the molecule onto bosonic modes and internal states of the simulator. In addition, we show how our approach readily extends to large, open-quantum systems, all using existing technology.

Access the live talk at 5 p.m. CET or the recording afterwards via this link:

https://www.youtube.com/channel/UCYfq48NHj6zbudywnLW3aYw

Here you can find the recording of the last lecture, Ulrich Schneider about "Optical Quasicrystals—Quantum Simulations beyond periodic systems"