Equation 12 · Part 1 · A Strained Crystal Is a Designer Spacetime
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
The device geometry is a bending-beam flexure cell: clamp a thin slab of the crystal at its ends, bend it to a controlled radius of curvature, and the resulting surface strain varies smoothly along the beam, sweeping the local tilt through the critical value across a channel roughly a hundred nanometres to a micrometre long. The line where the tilt crosses 1 is the horizon, with an analog surface gravity set by how fast the tilt changes along the channel and an analog Hawking temperature that follows from it in the same way a real event horizon’s surface gravity fixes its radiation temperature. At the paper’s chosen design point — a Fermi velocity of 210^5 metres per second, a strain…
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
- [7] Piezoelectric-based apparatus for strain tuning ↗
- [8] Phase Patterning for Ohmic Homojunction Contact in MoTe2 ↗
These citations provide research context; check each source for the exact claim it supports.