Equation 2 · Part 1 · Decoherence: The Quiet Selection That Makes the World Look Solid
Symbol x
What this part means
x is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.
Its job in the formula
x is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.
Full expression→Symbol x→Article meaning
The passage around this formula
…particular observable, typically position. States that are eigenstates, or near-eigenstates, of that monitored observable are left almost undisturbed by the scattering; a photon that reflects off an object localized at x still tells you, afterward, that the object was at x , and nothing about the interaction has to change for that to remain true on the next scattering event. A superposition of two well-separated positions, by contrast, is not an eigenstate of position, and the environment cannot scatter off it…
Learn the underlying idea
A variable is a named place for a value. Its letter is a local label: x can mean position in one formula and a data point in another.
Open the illustrated variables: a letter stands for a value guide →
See this notation across published equations →
Sources cited in the article section
- [7] The Emergence of Classical Properties Through Interaction with the Environment ↗
- [9] Wave-Particle Duality Seen in Carbon-60 Molecules ↗
- [10] Quantum Superposition of Molecules Beyond 25 kDa ↗
- [5] Pointer Basis of Quantum Apparatus: Into What Mixture Does the Wave Packet Collapse? ↗
- [6] Environment-Induced Superselection Rules ↗
These citations provide research context; check each source for the exact claim it supports.