B How does string theory fit with QFT?

[member 623540]

In string theory, particles is vibrating strings. However, QFT treats particles as excitations in a quantum field. Can both of these theories be correct? If so, how does them fit together?

 

[Demystifier]

In perturbative string theory, QFT can be viewed as an approximation of string theory. In non-perturbative string theory, there are conjectures claiming that string theory and QFT can be equivalent.

 

[Endan Rarity]

Well if QFT explains quantum particles as vibrations in a field then using string theory, you can apply each vibration's frequency according to the molecules being strings?