Equation 14 · Part 3 · From Origins to Frontier: A History of Stochastic Thermodynamics and Complex Systems
subscript
subscript
What this part means
The lower label selects a particular version, component, or indexed member of the quantity. For example, x₀ and xₜ can be values at different positions.
Its job in the formula
A subscript distinguishes a version, component, step, or member of a quantity. It does not automatically mean multiplication.
Full expression→subscript→Article meaning
The passage around this formula
In 2002, Jan Liphardt, Sophie Dumont, Steven Smith, Ignacio Tinoco Jr, and Carlos Bustamante published “Equilibrium Information from Nonequilibrium Measurements in an Experimental Test of Jarzynski’s Equality” in Science [ 5 ] . They used optical tweezers to unfold and refold a single RNA hairpin molecule repeatedly, at speeds fast enough that the process was thermodynamically irreversible on each individual repetition, then applied the Jarzynski average to recover the equilibrium free energy of unfolding — and found it agreed with the independently measured equilibrium value to within about half of T . This was the first direct experimental confirmation that Jarzynski’s exponential…
Learn the underlying idea
A subscript is a label attached below a symbol. It often selects a time step, component, category, or member of a sequence.
Open the illustrated subscripts: which member of a family? guide →
Sources cited in the surrounding passage
These citations provide research context; check each source for the exact claim it supports.