186 citations · 2.3k across the 45 of their papers we have counts for
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Evgeny Kozik, Nikolay Prokof'ev, Boris Svistunov
The "canonical" variables of the Kosterlitz-Thouless theory--fields Φ0(r) and ϕ(r), generally believed to stand for vortices and phonons (or their XY equivalents,…