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author:

Liu, Shuai (Liu, Shuai.) [1] | Chen, Ye -Hong (Chen, Ye -Hong.) [2] | Wang, Yu (Wang, Yu.) [3] | Kang, Yi-Hao (Kang, Yi-Hao.) [4] | Shi, Zhi-Cheng (Shi, Zhi-Cheng.) [5] (Scholars:施志成) | Song, Jie (Song, Jie.) [6] | Xia, Yan (Xia, Yan.) [7] (Scholars:夏岩)

Indexed by:

EI Scopus SCIE

Abstract:

In this paper, we present an experimentally feasible protocol to generate the cat states in the microwave resonator coupled to a superconducting qubit. The setup employs a detuned, time-dependent parametric drive to squeeze the resonator mode so that an adjustable qubit-resonator coupling strength can be obtained. Therefore, based on the transitionless tracking algorithm, we can design control pulses to generate the qubit-resonator entangled states with high fidelity in the laboratory frame. Then, the even and odd cat states can be further obtained by performing measurement on the superconducting qubit. Compared to the scheme [Chen et al., Phys. Rev. Lett. 126, 023602 (2021)], the present protocol is realized in the regime of weak parametric drive. In the case, squeezing-induced noise can be reduced so that the fidelity of the generated state can be improved. Numerical simulations indicate that the present protocol is well executed under experimentally available parameters. Thus, the protocol is feasible with the present state of the art in microwave superconducting circuits.

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Community:

  • [ 1 ] [Liu, Shuai]Fuzhou Univ, Fujian Key Lab Quantum Informat & Quantum Opt, Fuzhou 350116, Peoples R China
  • [ 2 ] [Chen, Ye -Hong]Fuzhou Univ, Fujian Key Lab Quantum Informat & Quantum Opt, Fuzhou 350116, Peoples R China
  • [ 3 ] [Wang, Yu]Fuzhou Univ, Fujian Key Lab Quantum Informat & Quantum Opt, Fuzhou 350116, Peoples R China
  • [ 4 ] [Shi, Zhi-Cheng]Fuzhou Univ, Fujian Key Lab Quantum Informat & Quantum Opt, Fuzhou 350116, Peoples R China
  • [ 5 ] [Xia, Yan]Fuzhou Univ, Fujian Key Lab Quantum Informat & Quantum Opt, Fuzhou 350116, Peoples R China
  • [ 6 ] [Liu, Shuai]Fuzhou Univ, Dept Phys, Fuzhou 350116, Peoples R China
  • [ 7 ] [Chen, Ye -Hong]Fuzhou Univ, Dept Phys, Fuzhou 350116, Peoples R China
  • [ 8 ] [Wang, Yu]Fuzhou Univ, Dept Phys, Fuzhou 350116, Peoples R China
  • [ 9 ] [Shi, Zhi-Cheng]Fuzhou Univ, Dept Phys, Fuzhou 350116, Peoples R China
  • [ 10 ] [Xia, Yan]Fuzhou Univ, Dept Phys, Fuzhou 350116, Peoples R China
  • [ 11 ] [Liu, Shuai]Hubei Univ Arts & Sci, Sch Phys & Elect Engn, Xiangyang 441053, Peoples R China
  • [ 12 ] [Chen, Ye -Hong]RIKEN Cluster Pioneering Res, Theoret Quantum Phys Lab, Wako, Saitama 3510198, Japan
  • [ 13 ] [Chen, Ye -Hong]RIKEN Ctr Quantum Comp RQC, 2-1 Hirosawa, Wako, Saitama 3510198, Japan
  • [ 14 ] [Kang, Yi-Hao]Harbin Inst Technol, Dept Phys, Harbin 150001, Peoples R China
  • [ 15 ] [Song, Jie]Harbin Inst Technol, Dept Phys, Harbin 150001, Peoples R China

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Source :

PHYSICAL REVIEW A

ISSN: 2469-9926

Year: 2022

Issue: 4

Volume: 106

2 . 9

JCR@2022

2 . 6 0 0

JCR@2023

ESI Discipline: PHYSICS;

ESI HC Threshold:55

JCR Journal Grade:2

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count: 15

SCOPUS Cited Count: 12

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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