Fast population transfer with a superconducting qutrit via non-Hermitian shortcut to adiabaticity  

作　　者：董新平 冯志波 路晓静 李明 赵正印 Xin-Ping Dong;Zhi-Bo Feng;Xiao-Jing Lu;Ming Li;Zheng-Yin Zhao(School of Science,Xuchang University,Xuchang 461000,China)

机构地区：[1]School of Science,Xuchang University,Xuchang 461000,China

出　　处：《Chinese Physics B》2023年第3期228-233,共6页中国物理B（英文版）

基　　金：the Natural Science Foundation of Henan Province(Grant Nos.212300410388 and 212300410238);the Scientific Research Innovation Team of Xuchang University(Grant No.2022CXTD005);the National Scientific Research Project Cultivation Fund of Xuchang University(Grant No.2022GJPY001);the Key Research Project in Universities of Henan Province(Grant No.23B140010);the“316"Project Plan of Xuchang University.

摘　　要：Non-Hermitian dissipation dynamics,capable of turning the conventionally detrimental decoherence effects to useful resources for state engineering,is highly attractive to quantum information processing.In this work,an effective scheme is developed for implementing fast population transfer with a superconducting qutrit via the non-Hermitian shortcut to adiabaticity(STA).We first deal with aΛ-configuration interaction between the qutrit and microwave drivings,in which the dephasing-assisted qubit state inversion requiring an overlarge dephasing rate is constructed non-adiabatically.After introducing a feasible ancillary driving that directly acts upon the qubit states,the target state transfer can be well realized but with an accessible qubit dephasing rate.Moreover,a high fidelity could be numerically obtained in the considered system.The strategy could provide a new route towards the non-Hermitian shortcut operations on superconducting quantum circuits.

关 键 词：population transfer superconducting qutrit non-Hermitian shortcut to adiabaticity 

分 类 号：O413[理学—理论物理]