\psi - LaTeX Symbol

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ψ

\psi

The Greek letter Psi (\psi) is commonly used in mathematics and physics. In mathematics, it often represents a function or a wave function in quantum mechanics. In physics, it is frequently used to denote a quantum state or wave function.

Examples

ψ (x) = A e^{ik x}

A wave function in quantum mechanics, representing a particle's state.

\psi(x) = A e^{i k x}

\int ψ^{*} ψ d x = 1

Normalization condition for a wave function in quantum mechanics.

\int \psi^* \psi \, dx = 1

ψ = n = 0 \sum \infty c_{n} ϕ_{n}

Expansion of a wave function in terms of basis functions.

\psi = \sum_{n=0}^{\infty} c_n \phi_n