5 papers
Observation time dependent mean first passage time of diffusion and sub-diffusion processes
Ji-Hyun Kim, Hunki Lee, Sanggeun Song +2
The mean first passage time, one of the important characteristics for a stochastic process, is often calculated assuming the observation time is infinite. However, in practice, the…
Frequency spectrum of biological noise: a probe of reaction dynamics in living cells
Sanggeun Song, Gil-Suk Yang, Seong Jun Park +2
Even in the steady-state, the number of biomolecules in living cells fluctuates dynamically; and the frequency spectrum of this chemical fluctuation carries valuable information ab…
Universal Transport Dynamics of Complex Fluids
Sanggeun Song, Seong Jun Park, Bong June Sung +3
Thermal motion in complex fluids is a complicated stochastic process but ubiquitously exhibits initial ballistic, intermediate sub-diffusive, and long-time non-Gaussian diffusive m…
Reply to Note on cond-mat/0510270: Jarzynski equation for adiabatically stretched rotor
Jaeyoung Sung
Although the analysis in cond-mat/0510270 is correct, this doesn't mean Jarzynski relation holds always for an arbitrary process. There exists a sufficient and necessary condition…
Breakdown of the Jarzynski relation for an adiabatic stretching of an isotropic spring
Jaeyoung Sung
We perform a theoretical test of Jarzynski relation for an adiabatic stretching of an isotropic spring, which is an exactly solvable model. It turns out that Jarzynski relation doe…