Thermal fluctuations refer to the random variations in energy and particle motion within a system due to thermal energy at a given temperature. These fluctuations are crucial in understanding how systems behave on a quantum level, particularly in contexts where quantum coherence can be disrupted, leading to decoherence. In biological systems, thermal fluctuations play a significant role in processes like optomechanical sensing, where the interactions of light with mechanical components are influenced by temperature-dependent changes.
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