Subconvexity implies effective quantum unique ergodicity for Hecke--Maa{\ss} cusp forms on $\mathrm{SL}_2(\mathbb{Z}) \backslash \mathrm{SL}_2(\mathbb{R})$
Subconvexity implies effective quantum unique ergodicity for Hecke--Maa{\ss} cusp forms on $\mathrm{SL}_2(\mathbb{Z}) \backslash \mathrm{SL}_2(\mathbb{R})$