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In this work, we consider one-dimensional resetting Brownian motion confined in a unit interval with absorbing boundaries at both ends. The Brownian particle is reset to the starting position x 0 at random times but with a constant rate r, and the process terminates whenever the particle touches any of absorbing boundaries. We study the statistics of the span S, defined as the size of the visited domain during the first-passage process, and the time tm at which the maximum (minimum) displacement is achieved when the particle is absorbed by the left (right) end. We analytically obtain the distribution of S and its mean value. The distribution of S can be significantly altered by the resetting, and the mean value of S can increase, decrease, or remain insignificant as r increases, depending on the value of x 0. Moreover, we find that the mean value ⟨ t m ⟩ has a highly nontrivial dependence on r. When x 0 is close to the boundary, ⟨ t m ⟩ can be reduced by the resetting, and a nonzero resetting rate r = r opt exists for which ⟨ t m ⟩ attains its minimum. Otherwise, ⟨ t m ⟩ has its minimum when the resetting is absent. We observe that the transition occurs at x 0 ≈ 0.180 67 (or x 0 ≈ 0.819 33 ). Such a transition is first-order, characterized by an abrupt jump of r opt from a nonzero value to zero at the transition point.
In this work, we consider one-dimensional resetting Brownian motion confined in a unit interval with absorbing boundaries at both ends. The Brownian particle is reset to the starting position x 0 at random times but with a constant rate r, and the process terminates whenever the particle touches any of absorbing boundaries. We study the statistics of the span S, defined as the size of the visited domain during the first-passage process, and the time tm at which the maximum (minimum) displacement is achieved when the particle is absorbed by the left (right) end. We analytically obtain the distribution of S and its mean value. The distribution of S can be significantly altered by the resetting, and the mean value of S can increase, decrease, or remain insignificant as r increases, depending on the value of x 0. Moreover, we find that the mean value ⟨ t m ⟩ has a highly nontrivial dependence on r. When x 0 is close to the boundary, ⟨ t m ⟩ can be reduced by the resetting, and a nonzero resetting rate r = r opt exists for which ⟨ t m ⟩ attains its minimum. Otherwise, ⟨ t m ⟩ has its minimum when the resetting is absent. We observe that the transition occurs at x 0 ≈ 0.180 67 (or x 0 ≈ 0.819 33 ). Such a transition is first-order, characterized by an abrupt jump of r opt from a nonzero value to zero at the transition point.
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