QFT in Quantum Computing and Control Theory?

Is QFT being applied to quantum computing and control theory?

I took yesteryear a basic course on quantum computing and if I remember correctly we didn't touch on any QFT (though I think that if it were a course with prequisites of QFT, not a lot of people would have attended the course).

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I'd naively interpret the quantum mechanics of quantum computing to be that section of the formalism which doesn't deal with explicit spatial dependence. Even if the framework (Hilbert spaces, yada yada) is the same, the papers on computing/optics look like "$|010\rangle$" while the papers on high energy physics look like "$\int \Psi(x)|\Omega\rangle$" –  NikolajK Mar 21 '13 at 8:17