Multisqueezed states, also known as generalized squeezed states, are valuable quantum non-Gaussian resources, because they can feature nonclassical properties such as large phase-space Wigner negativities. In this paper, we introduce a shortcuts to adiabaticity (STA) method for the fast preparation of multisqueezed states. In contrast to previous STA methods, which rely on the use of counterdiabatic control to suppress unwanted nonadiabatic effects, our method simplifies the process and accelerates state preparation by selecting an appropriate sampling along a quantum evolution path. We demonstrate the high fidelity and fast preparation of multisqueezed states, as well as hybrid entangled states between a bosonic mode and a qubit.

Chuan Chen1, Jian-Yu Lu1, Xu-Yang Chen1,*, and Zhen-Yu Wang1,2,†

• 1Key Laboratory of Atomic and Subatomic Structure and Quantum Control (Ministry of Education), Guangdong Basic Research Center of Excellence for Structure and Fundamental Interactions of Matter, School of Physics, South China Normal University, Guangzhou 510006, China

• 2Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, Guangdong–Hong Kong Joint Laboratory of Quantum Matter, South China Normal University, Guangzhou 510006, China

• *Contact author: 2022010138@m.scnu.edu.cn

• †Contact author: zhenyu.wang@m.scnu.edu.cn