Engineering giant nonlinearities in quantum nanosystems.

نویسندگان

  • Kurt Jacobs
  • Andrew J Landahl
چکیده

We describe a method to engineer giant nonlinearities in, and probes to measure nonlinear observables of, mesoscopic quantum resonators. This involves tailoring the Hamiltonian of a simple auxiliary system perturbatively coupled to the resonator, and has the potential to engineer a wide range of nonlinearities to high accuracy. We give a number of explicit examples, including a readily realizable two-qubit auxiliary system that creates an x;{4} potential and a chi;{(3)} (Kerr) nonlinearity, valid to fifth order in the perturbative coupling.

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عنوان ژورنال:
  • Physical review letters

دوره 103 6  شماره 

صفحات  -

تاریخ انتشار 2009