Quantum simulation with trapped ions in optical tweezers
Speaker: Liam Bond
Affiliation: University of Amsterdam
Abstract
Trapped ions form one of the most advanced platforms for digital and analogue quantum simulation. A suitable ion species such as Yb+ has an internal structure suitable for cooling, initialising and read-out. These properties, together with qubit states with long coherence times, have resulted in the highest fidelity two-qubit gates, which are essential for digital quantum simulation. However, a programmable analogue quantum simulator may allow us to simulate certain quantum Hamiltonians more efficiently in comparison to the digital approach.
In an analogue quantum simulator, the interactions between the qubits are mediated by the collective vibrations of the ions. As such, natively the interactions are long-ranged. However, controlling the interactions remains a challenge. Optical tweezers, which add a small, tuneable harmonic potential to each ion, was recently proposed as a method of gaining more control [1]. In this talk I will introduce this proposal, as well as our recent simulations of experimental effects [2]. I will also discuss our recent progress towards realising this setup in the lab.
[1] Arias Espinoza et al., Phys Rev A 104, 013302 (2021)
[2] Bond et al., in preparation
About Physics Seminars
The weekly Physics Seminar series focuses on a broad range of physics research within SMP, along with frequent presentations from visiting researchers. Seminars are usually scheduled for 1.00pm on Tuesdays.
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