Masoliver, Jaume, 1951-Porrà i Rovira, Josep MariaLindenberg, Katja2011-07-072011-07-0719961063-651Xhttps://hdl.handle.net/2445/18801A recent paper by J. Heinrichs [Phys. Rev. E 48, 2397 (1993)] presents analytic expressions for the first-passage times and the survival probability for a particle moving in a field of random correlated forces. We believe that the analysis there is flawed due to an improper use of boundary conditions. We compare that result, in the white noise limit, with the known exact expression of the mean exit time.3 p.application/pdfeng(c) American Physical Society, 1996Física matemàticaFísica estadísticaTermodinàmicaSistemes no linealsMathematical physicsStatistical physicsTermodynamicsNonlinear systemsinfo:eu-repo/semantics/article109155info:eu-repo/semantics/openAccess