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A reversible process is a quasistatic one that deviates only infinitesimally from thermodynamic equilibrium and avoids friction or other dissipation. Any process that happens quickly enough to deviate from thermal equilibrium cannot be reversible, total entropy increases, and the potential for maximum work to be done in the process is also lost.
An irreversible process increases the total entropy of the system and its surroundings. The second law of thermodynamics can be used to determine whether a hypothetical process is reversible or not. Intuitively, a process is reversible if there is no dissipation. For example, Joule expansion is irreversible because initially the system is not ...
Reversible computing. Reversible computing is any model of computation where the computational process, to some extent, is time-reversible. In a model of computation that uses deterministic transitions from one state of the abstract machine to another, a necessary condition for reversibility is that the relation of the mapping from states to ...
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Photobleaching is an important parameter to account for in real-time single-molecule fluorescence imaging in biophysics. At light intensities used in single-molecule fluorescence imaging (0.1-1 kW/cm 2 in typical experimental setups), even most robust fluorophores continue to emit for up to 10 seconds before photobleaching in a single step. For ...