JQI Seminar: Ting Rei Tan
Description
Title: Quantum simulation of chemical dynamics beyond the Born- Oppenheimer regime
Abstract: I will discuss recent trapped-ion experiments at the University of Sydney that use an ion’s vibrational modes as bosonic resources for quantum information processing
and quantum simulation. I will focus in particular on experiments that simulate chemical phenomena involving strong vibrational–electronic (vibronic) coupling.Â
These include: (i) simulations of ultrafast non-adiabatic photochemical dynamics,
where the Born–Oppenheimer approximation breaks down [1,2]; (ii) prediction of
vibronic spectra [3]; and (iii) simulations of dynamics in anharmonic potentials [4].
Together, these experiments demonstrate the promise of the hybrid qubit–oscillator
platform, which offers orders-of-magnitude resource savings over qubit-only
approaches for simulating otherwise classically intractable problems.
[1] Experimental quantum simulation of chemical dynamics Journal of the American
Chemical Society 147, 23566 (2025)
[2] Direct observation of geometric phase in dynamics around a conical intersection
Nature Chemistry 15, 1503 (2023)
[3] Predicting molecular vibronic spectra using time-domain analog quantum
simulation Chem. Sci. 14, 9439 (2023)
[4] Programmable quantum simulation of anharmonic dynamics arXiv:2603.04744
*You will need to bring your cell phone, so you can sign in using the QR code outside of ATL 2400. You will need to submit your first and last name, email, and affiliation on the form by 11:15am to be able to get lunch after the seminar. Lunch is first come, first served.*
Abstract: I will discuss recent trapped-ion experiments at the University of Sydney that use an ion’s vibrational modes as bosonic resources for quantum information processing
and quantum simulation. I will focus in particular on experiments that simulate chemical phenomena involving strong vibrational–electronic (vibronic) coupling.Â
These include: (i) simulations of ultrafast non-adiabatic photochemical dynamics,
where the Born–Oppenheimer approximation breaks down [1,2]; (ii) prediction of
vibronic spectra [3]; and (iii) simulations of dynamics in anharmonic potentials [4].
Together, these experiments demonstrate the promise of the hybrid qubit–oscillator
platform, which offers orders-of-magnitude resource savings over qubit-only
approaches for simulating otherwise classically intractable problems.
[1] Experimental quantum simulation of chemical dynamics Journal of the American
Chemical Society 147, 23566 (2025)
[2] Direct observation of geometric phase in dynamics around a conical intersection
Nature Chemistry 15, 1503 (2023)
[3] Predicting molecular vibronic spectra using time-domain analog quantum
simulation Chem. Sci. 14, 9439 (2023)
[4] Programmable quantum simulation of anharmonic dynamics arXiv:2603.04744
*You will need to bring your cell phone, so you can sign in using the QR code outside of ATL 2400. You will need to submit your first and last name, email, and affiliation on the form by 11:15am to be able to get lunch after the seminar. Lunch is first come, first served.*