2000 character limit reached
A proposal for realizing a 3-qubit controlled-phase gate with superconducting qubit systems coupled to a cavity (1208.1345v1)
Published 7 Aug 2012 in quant-ph and cond-mat.supr-con
Abstract: We present a way to realize a 3-qubit quantum controlled-phase gate with superconducting qubit systems coupled to a cavity. This proposal does not require adjustment of the qubit level spacings or identical qubit-cavity coupling constants. Moreover, since only a resonant interaction is applied, the gate can be performed fast, within $\sim $ 10 nanosecond. This proposal is quite general, which can be applied to various types of superconducting qubits, atoms trapped in a cavity, or quantum dots coupled to a resonator.