Implementing Quantum Discrete Fourier Transform by Using Cavity Quantum Electrodynamics

We propose a scheme for the implementation of quantum discrete Fourier transform via cavity quantum electrodynamics. In the scheme, we design a tunable two-qubit conditional phase gate by sending the atoms through a series of classical fields and cavities and by changing the frequency of the cavity appropriately. The experimental implementation of the scheme would show the power of cavity quantum electrodynamics for more complicated quantum computation. KCI Citation Count: 20