(adsbygoogle = window.adsbygoogle || []).push({}); Quantum optics, 2 qubit gates acting on 2 qubits - cannot be factorized??

Hi, I'm struggling to understand why two qubit gates acting on two qubits cannot be factorized, i.e.

G_{12}[tex]\neq[/tex] G_{1}[tex]\otimes[/tex] G_{2},

where G_{1}acts on qubit 1 only and G_{2}acts on qubit 2 only.

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# Quantum optics, 2 qubit gates acting on 2 qubits - cannot be factorized?

**Physics Forums | Science Articles, Homework Help, Discussion**