Trapped ions offer long coherence times and high fidelity, programmable quantum
operations, making them a promising platform for quantum simulation of condensed matter …

Linear strings of trapped atomic ions held in radio-frequency (rf) traps constitute one of the
leading platforms for quantum simulation experiments, allowing the investigation of …

Abstract Two-dimensional (2D) ion crystals may represent a promising path to scale up qubit
numbers for ion trap quantum information processing. However, to realize universal …

Quantum spin models have been extensively used to study the properties of strongly
correlated systems and to find approximate solutions to combinatorial optimization …

Quantum simulators with hundreds of qubits and engineerable Hamiltonians have the
potential to explore quantum many-body models that are intractable for classical computers …

We experimentally study two-dimensional (2D) Coulomb crystals in the “radial-2D” phase of
a linear Paul trap. This phase is identified by a 2D ion lattice aligned entirely with the radial …

We study the Doppler-cooling of radial two-dimensional (2D) Coulomb crystals of trapped
barium ions in a radiofrequency trap. Ions in radial 2D crystals experience micromotion of an …

A promising paradigm of quantum computing for achieving practical quantum advantages is
quantum annealing or quantum approximate optimization algorithm, where the classical …

Simulating quantum systems using classical computers encounters inherent challenges due
to the exponential scaling with system size. To overcome this challenge, quantum simulation …

We present the design and experimental demonstration of an open-endcap radio frequency
trap to confine ion crystals in the radial-two dimensional (2D) structural phase. The central …