Superadiabatic-based shortcuts for the fast generation of multi-partite W states of distant transmon qubits

Abstract

We propose an efficient scheme for the fast generating three-partite W states of distant transmon qubits. With the help of superadiabatic shortcuts technology, we construct shortcuts to adiabaticity (STA) passage. The Rabi frequencies of the designed driving pulses in the scheme can be expressed by the superpositions of Gaussian functions. These make our scheme more feasible in the experiment. Compare with the adiabatic case, we show that the preparation of the target state can be greatly accelerated. We analyze the influences of decoherent factors on the fidelity of W states, and numerical results show our proposal is suitable to generate high fidelity three-partite W states. In addition, the present scheme can also be generalized to prepare n-partite W states of distant transmon qubits. This work may useful applications for the realization of distributed quantum computation.