Over the past few decades, significant progress has been made in quantum information
technology, from theoretical studies to experimental demonstrations. Revolutionary quantum …

Quantum error correction protocols will play a central role in the realisation of quantum
computing; the choice of error correction code will influence the full quantum computing …

The technique of stimulated Raman adiabatic passage (STIRAP), which allows efficient and
selective population transfer between quantum states without suffering loss due to …

We show that belief propagation combined with ordered statistics post-processing is a
general decoder for quantum low-density parity-check codes constructed from the …

STIRAP (stimulated Raman adiabatic passage) is a powerful laser-based method, usually
involving two photons, for efficient and selective transfer of populations between quantum …

Quantum computation is traditionally expressed in terms of quantum bits, or qubits. In this
work, we instead consider three-level qu trits. Past work with qutrits has demonstrated only …

The notion of universal quantum computation can be generalized to multilevel qudits, which
offer advantages in resource usage and algorithmic efficiencies. Trapped ions, which are …

We use electronic microwave control methods to implement addressed single-qubit gates
with high speed and fidelity, for Ca+ 43 hyperfine “atomic clock” qubits in a cryogenic (100 …

Trapped ions are a promising tool for building a large-scale quantum computer. However,
the number of required radiation fields for the realization of quantum gates in any proposed …

The physics of interacting integer-spin chains has been a topic of intense theoretical interest,
particularly in the context of symmetry-protected topological phases. However, there has not …