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Tunable Single-Ion Anisotropy in Spin-1 Models Realized with Ultracold Atoms

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arxiv 2101.01316 v1 pith:D5IICYON submitted 2021-01-05 cond-mat.quant-gas physics.atom-ph

Tunable Single-Ion Anisotropy in Spin-1 Models Realized with Ultracold Atoms

Woo Chang Chung , Julius de Hond , Jinggang Xiang , Enid Cruz-Col\'on , Wolfgang Ketterle This is my paper
classification cond-mat.quant-gas physics.atom-ph
keywords anisotropyspinsingle-ionanalyticalatomsbosonscapturedcoupling
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Mott insulator plateaus in optical lattices are a versatile platform to study spin physics. Using sites occupied by two bosons with an internal degree of freedom, we realize a uniaxial single-ion anisotropy term proportional to $(S^z)^2$, which plays an important role in stabilizing magnetism for low-dimensional magnetic materials. Here we explore non-equilibrium spin dynamics and observe a resonant effect in the spin anisotropy as a function of lattice depth when exchange coupling and on-site anisotropy are similar. Our results are supported by many-body numerical simulations and are captured by the analytical solution of a two-site model.

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Cited by 2 Pith papers

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  2. Fault-Tolerant Resource Comparison of Qudit and Qubit Encodings for Diagonal Quadratic Operators

    quant-ph 2026-04 unverdicted novelty 5.0

    The paper derives explicit finite-d break-even synthesis costs for qudit vs. qubit encodings of diagonal quadratic operators in product-formula and LCU simulations, identifying low-d regions where qudits yield savings.