Enhancing the precision of measurements by harnessing entanglement is a long-sought
goal in quantum metrology,. Yet attaining the best sensitivity allowed by quantum theory in …

While data qubits with a long coherence time are essential for the storage of quantum
information, ancilla qubits are pivotal in quantum error correction (QEC) for fault-tolerant …

Quantum computers must achieve large-scale, fault-tolerant operation to deliver on their
promise of transformational processing power [1-4]. This will require thousands or millions of …

Atom-loss errors are a major limitation of current state-of-the-art neutral-atom quantum
computers and pose a significant challenge for scalable systems. In a quantum processor …

A major challenge in performing quantum error correction (QEC) is implementing reliable
measurements and conditional feed-forward operations. In quantum computing platforms …

The fidelity of entangling operations is a key figure of merit in quantum information
processing, especially in the context of quantum error correction. High-fidelity entangling …

Neutral atoms are among the leading platforms toward realizing fault-tolerant quantum
computation (FTQC). However, scaling up a single neutral-atom device beyond 10 4 atoms …

Arrays of optically trapped neutral atoms are a promising architecture for the realization of
quantum computers. In order to run increasingly complex algorithms, it is advantageous to …

Quantum information processing with neutral atoms relies on Rydberg excitation for
entanglement generation. While the use of heavy divalent or open-shell elements, such as …

Helium (He) is the ideal atom to perform tests of ab initio calculations in two-electron
systems that consider all known effects, including quantum-electrodynamics and nuclear …