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In their recent paper [Nature Physics 15, 451 (2006)], Sakmann and Kasevichstudy the formation of fringe patterns in ultra-cold Bose gases and claim:`Here, we show how single shots can be simulated from numerical solutions ofthe time-dependent many-body Schr\"odinger equation.' It would be remarkable ifthey had solved this exponentially complex equation. Instead they solvenonlinear equations with the aim to approximate the solution of theSchr\"odinger equation. The authors proceed to criticize phase-space approachesto simulating quantum dynamics and claim the impossibility of interpretingsingle trajectories of the truncated Wigner (tW) method as single-shotexperimental outcomes. Here we aim to provide relevant context and elaboratewhy we disagree with the authors' claims.

Comment on: `Single-shot simulations of dynamic quantum many-body systems' [arXiv:1501.03224]