Authors Referees APS Members |
December 2007, to be published in Physical Review A
Three-qubit phase gate based on cavity quantum electrodynamics
We describe a three qubit quantum phase gate which is implemented by passing a four-level atom in a cascade configuration initially in its ground state through a three-mode optical cavity. The three qubits are represented by the photons in the three modes of the cavity. Under appropriate detunings, coupling coefficients, and interaction times, this system exhibits like a three qubit quantum phase gate. Such a quantum phase gate has potential applications in quantum search. © 2008 The American Physical Society.
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