7/29/2023 0 Comments Quantum physics projectsScaling up an ion chain to a large number of particles (>50) presents a challenging task as extremely anisotropic trapping potentials are required to keep the ion crystal linear, leading to issues such as high heating rates of the axial motional modes as well as problems in addressing outer ions in long strings. Why extend the system into the second dimension? In the approach used here and several other groups around the world, a spin-half particle is encoded into two electronic states of a trapped ion, which is manipulated via laser pulses: coherent single-ion operations and measurements are combined with engineered spin-spin interactions mediated by the motional modes of the ion crystal to directly implement e.g. In Innsbruck an analog quantum simulator based on 1D strings of Calcium-40 ions stored in a linear Paul trap is already used successfully to study systems of interacting spins with up to ~20 particles. Polarization-gradient cooling of 1D and 2D ion Coulomb crystals (2020)Īnalog quantum simulation with trapped ions in Innsbruck.Correlation spectroscopy with multi-qubit-enhanced phase estimation (Preprint 2022).Controlling two-dimensional Coulomb crystals of more than 100 ions in a monolithic radio-frequency trap (2023).Sideband thermometry of ion crystals (Preprint 2023).We combine the proven methodology for realizing spin models in linear ion crystals stored in radio-frequency traps with a novel approach to extending such a system into two dimensions, thus enabling studies of 2D non-equilibrium physics with a larger particle number. The objective of this project is to experimentally realize a 100-particle quantum simulator with complete quantum control at the single-particle level. 2D Crystals Simulating 2D Spin Lattices with Ion Crystals
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