Erasure-tolerance scheme for the surface codes on neutral atom quantum computers

Understand

Neutral atom arrays manipulated with optical tweezers are promising candidates for fault-tolerant quantum computers due to their advantageous properties, such as scalability, long coherence times, and optical accessibility for communication.

• A significant challenge to overcome is the presence of non-Pauli errors, specifically erasure errors and leakage errors.
• Previous work has shown that leakage errors can be converted into erasure errors; however, these (converted) erasure errors continuously occur and accumulate over time.
• Prior proposals have involved transporting atoms directly from a reservoir area--where spare atoms are stored--to the computational area--where computation and error correction are performed--to correct atom loss.