Controlling the dynamics of ultracold polar molecules in optical tweezers

TL;DR

This paper explores controlling ultracold polar molecules in optical tweezers using external electric fields, aiming to enable quantum computing and precision measurements with optimized operation times and potential gate speedups.

Contribution

It introduces a method for manipulating two interacting polar molecules in separate traps, highlighting the role of trap-induced resonances for faster quantum gate operations.

Findings

Operation timescales of a few microseconds for state engineering

Significant gate speedup potential via trap-induced resonances

Importance of spatial structure in two-body states

Abstract

Ultracold molecules trapped in optical tweezers show great promise for the implementation of quantum technologies and precision measurements. We study a prototypical scenario where two interacting polar molecules placed in separate traps are controlled using an external electric field. This, for instance, enables a quantum computing scheme in which the rotational structure is used to encode the qubit states. We estimate the typical operation timescales needed for state engineering to be in the range of few microseconds. We further underline the important role of the spatial structure of the two-body states, with the potential for significant gate speedup employing trap-induced resonances.