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See also: Ψ, , ѱ, and Ѱ
Greek lc psi.svg
ψ U+03C8, ψ
GREEK SMALL LETTER PSI
χ
[U+03C7]
Greek and Coptic ω
[U+03C9]

Contents

TranslingualEdit

SymbolEdit

ψ

  1. (quantum mechanics) a wavefunction
  2. (electrical engineering) Electric flux.

Usage notesEdit

Some texts use Ψ (uppercase) for the actual wavefunction that appears in the time-dependent Schrödinger equation, and ψ (=ΨeiEt/ħ) (lowercase) for the time-independent spatial wave function that may exist for stationary states (and which then appears in the time-independent Schrödinger equation), but this distinction is not always observed. Otherwise, the distinction may be made by providing the arguments.

See alsoEdit


GreekEdit

LetterEdit

ψ (ps) (lowercase, uppercase Ψ)

  1. The lower case letter psi (ψι), the 23rd letter of the modern Greek alphabet.

NumeralEdit

ψ' (ps')

  1. The number 700 in Greek numerals.

NumeralEdit

(,ps)

  1. The number 700,000 in Greek numerals.

See alsoEdit