Long-range interacting quantum systems

N Defenu, T Donner, T Macrì, G Pagano, S Ruffo… - Reviews of Modern …, 2023 - APS
In this review recent investigations are summarized of many-body quantum systems with
long-range interactions, which are currently realized in Rydberg atom arrays, dipolar …

[HTML][HTML] Quantum information scrambling: from holography to quantum simulators

A Bhattacharyya, LK Joshi, B Sundar - The European Physical Journal C, 2022 - Springer
In this review, we present the ongoing developments in bridging the gap between
holography and experiments. To this end, we discuss information scrambling and models of …

Tunable quantum simulation of spin models with a two-dimensional ion crystal

M Qiao, Z Cai, Y Wang, B Du, N Jin, W Chen, P Wang… - Nature Physics, 2024 - nature.com
Quantum spin models have been extensively used to study the properties of strongly
correlated systems and to find approximate solutions to combinatorial optimization …

Liquid-Nitrogen-Cooled Optical Clock with Systematic Uncertainty of

Y Huang, B Zhang, M Zeng, Y Hao, Z Ma, H Zhang… - Physical Review …, 2022 - APS
We present a liquid-nitrogen-cooled Ca+ optical clock with an overall systematic uncertainty
of 3.0× 10− 18. In contrast to the room-temperature Ca+ optical clock that we have reported …

Realizing coherently convertible dual-type qubits with the same ion species

HX Yang, JY Ma, YK Wu, Y Wang, MM Cao, WX Guo… - Nature Physics, 2022 - nature.com
Trapped ions constitute one of the most promising systems for implementing quantum
computing and networking,. For large-scale ion-trap-based quantum computers and …

Benchmarking a trapped-ion quantum computer with 29 algorithmic qubits

JS Chen, E Nielsen, M Ebert, V Inlek, K Wright… - arXiv preprint arXiv …, 2023 - arxiv.org
Quantum computers are rapidly becoming more capable, with dramatic increases in both
qubit count and quality. Among different hardware approaches, trapped-ion quantum …

Polarization-gradient cooling of 1D and 2D ion Coulomb crystals

MK Joshi, A Fabre, C Maier, T Brydges… - New Journal of …, 2020 - iopscience.iop.org
We present experiments on polarization gradient cooling of Ca+ multi-ion Coulomb crystals
in a linear Paul trap. Polarization gradient cooling of the collective modes of motion whose …

Exploiting nonclassical motion of a trapped ion crystal for quantum-enhanced metrology of global and differential spin rotations

RJ Lewis-Swan, JCZ Castro, D Barberena, AM Rey - Physical Review Letters, 2024 - APS
We theoretically investigate prospects for the creation of nonclassical spin states in trapped
ion arrays by coupling to a squeezed state of the collective motion of the ions. The …

Quantum computation and simulation with vibrational modes of trapped ions

W Chen, J Gan, JN Zhang, D Matuskevich… - Chinese Physics …, 2021 - iopscience.iop.org
Vibrational degrees of freedom in trapped-ion systems have recently been gaining attention
as a quantum resource, beyond the role as a mediator for entangling quantum operations on …

Observing frustrated quantum magnetism in two-dimensional ion crystals

M Qiao, Z Cai, Y Wang, B Du, N Jin, W Chen… - arXiv preprint arXiv …, 2022 - arxiv.org
Two-dimensional (2D) quantum magnetism is a paradigm in strongly correlated many-body
physics. The understanding of 2D quantum magnetism can be expedited by employing a …