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2020 IPS Conference
Study Materials
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About/Contact
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Events/Seminars
2020 IPS Conference
Study Materials
Corporate Members
We study a two dimensional system whose two-point correlation function is zero for any non-zero distance, as for a perfectly random sequence of coin flips. Consequently, its diffraction pattern has no singularities of any kind, and so would be considered disordered. By mapping this onto a spin model we have constructed a short-range Hamiltonian for which this is the ground state. To our knowledge, this is the first Hamiltonian with deterministic, nearest-neighbor interactions whose ground state is disordered in this sense.