Dual-type dual-element arrays for quantum simulation and computation
Quantum science holds the promise of revolutionizing current technologies. Arrays of individual atoms trapped in optical tweezers have emerged as one of the leading architectures for implementing quantum technologies. Despite the rapid progress during the past few years, some challenges persist, including the difficulties in achieving reconfigurable local control, having rapid non-demolition readout, repetitive quantum error syndrome detection and correction.
Our research group aims to overcome these challenges by building a new architecture and developing new protocols. Our architecture involves two types of arrays: one comprising individually trapped Yb atoms for storing quantum information, and another consisting of small atomic ensembles containing a few hundred Rb atoms each. By leveraging the collective behavior and strong optical nonlinearity of these ensembles, and the tunable interactions between atomic ensembles and individual atoms, we anticipate achieving local addressability and rapid, multi-qubit detection
With this novel architecture and its distinctive features, we aim not only to contribute to global efforts toward realizing fault-tolerant quantum computers but also to advance understanding in quantum information dynamics. Particularly intriguing are scenarios involving unitary quantum processes interleaved with subsystem measurements. The interplay between measurement and unitary dynamics brings new phenomena in fundamental physics, such as measurement-driven quantum phase transitions, and offers new protocols for generating long-range entanglement efficiently.
