Enhancing quantum adiabaticity in adiabatic quantum computers with multiple local minima

The adiabatic criterion is a key requirement for the successful implementation of adiabatic quantum computing. However, in interacting many-body systems, the energy gap often decreases quickly with the number of qubits, which results in the violation of the adiabatic criterion and diabatic transition to the excited states. In a recent work [1], we presented an approach to enhance quantum adiabaticity that does not require the spectral knowledge of the adiabatic quantum computers or the construction of unphysical many-body interactions. In this talk, we show that this approach can be applied to adiabatic quantum computers with multiple local minima in the energy separation between the ground and the excited states. We demonstrate this approach with numerical simulation. [1] L. Tian, arXiv:1802.02285.