Cavity QED simulation with a trapped ion system

Chen-Yu Lee^1*, Guin-Dar Lin^1,2

¹Department of Physics, National Taiwan University, Taipei, Taiwan
²Center of Quantum Science and Engineering, Taipei, Taiwan

* Presenter:Chen-Yu Lee, email:lcy511085@gmail.com

The trapped ion system is one of the promising candidates to implement quantum computing and simulation. We investigate the possibility of constructing a phonon cavity on a large ion crystal, by pinning one or several ions as cavity “walls” so that the subset array between walls forms an effective cavity. We calculate the effective loss rate in terms of the Q factor, and find it is affected by tweezers’ strength, “thickness of walls” (number of tweezers), and the local eigenmode frequencies. By coupling the internal states and collective sidebands, we can constantly generate phonons through appropriate pumping. We thus look into the lasing mechanism for phonons in such systems.

Keywords: Trapped ion, Optical tweezers, Phonon cavity