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arXiv · 1605.05738

String order via Floquet interactions in atomic systems

Tony E. Lee·Yogesh N. Joglekar·Philip Richerme
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Abstract

We study the transverse-field Ising model with interactions that are modulated in time. In a rotating frame, the system is described by a time-independent Hamiltonian with many-body interactions, similar to the cluster Hamiltonians of measurement-based quantum computing. In one dimension, there is a three-body interaction, which leads to string order instead of conventional magnetic order. We show that the string order is robust to power-law interactions that decay with the cube of distance. In two and three dimensions, there are five- and seven-body interactions. We discuss adiabatic preparation of the ground state as well as experimental implementation with trapped ions, Rydberg atoms, and polar molecules.

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Tony E. Lee, Yogesh N. Joglekar, Philip Richerme. 2016-05-18. String order via Floquet interactions in atomic systems. https://doi.org/10.1103/physreva.94.023610

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