Abstract

AREVALO AGUILAR, L.M.  and  MOYA-CESSA, H.. Quantum bits and superposition of displaced Fock states of the cavity field. Rev. mex. fis. [online]. 2002, vol.48, n.5, pp.423-426. ISSN 0035-001X.

We study the effects of counter rotating terms in the interaction of quantized light with a two-level atom, by using the method of small rotations. We give an expression for the wave function of the composed system atom plus field and point out one initial wave function that generates a quantum bit of the electromagnetic field with arbitrary amplitudes.

Keywords : Qubits; rotating wave approximation; Jaynes-Cummings model.