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Accessing quantum information of field theories with ultracold atoms

Nature Physics volume 19, pages 941–942 (2023)Cite this article

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It’s a long-standing theoretical prediction that mutual information in locally interacting, many-body quantum systems follows an area law. Using cold-atom quantum-field simulators on an atom chip to measure the scaling of von Neumann entropy and mutual information, that prediction is now proved true.

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Fig. 1: Scaling of von Neumann entropies and mutual information for coupled superfluids on an atom chip.

References

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This is a summary of: Tajik, M. et al. Verification of the area law of mutual information in a quantum field simulator. Nat. Phys. https://doi.org/10.1038/s41567-023-02027-1 (2023).

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Accessing quantum information of field theories with ultracold atoms. Nat. Phys. 19, 941–942 (2023). https://doi.org/10.1038/s41567-023-02050-2

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