2017 (source code)
= 2017
{scope}
{title2=A15757W1}
Source paper: https://www.whatdotheyknow.com/request/physics_past_papers_21/response/3037379/attach/2/FOI%20202505%20441%20Response.pdf?cookie_passthrough=1. The original cover dates this paper to 13 June 2017. We use $\hbar=1$ and lattice spacing one. Both printed interaction sums omit grouping parentheses; the solutions explicitly use the symmetric nearest-neighbour interpretation. The unused $h$ in question 1 is not treated as an additional interaction.
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