A Liouville Theorem for the Complex Monge-Amp\`ere Equation

In this note, we derive a Liouville theorem for the complex Monge-Amp`ere equation. Our result states that if the global solution $u$ of the complex Monge-Amp`ere equation with constant right-hand side differs from a quadratic polynomial solution by $o(\text{abs}{x}^2)$ at infinity, then $u$ is a quadratic polynomial.