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author:

Huang, C.-R. (Huang, C.-R..) [1] | Chen, Y.-H. (Chen, Y.-H..) [2]

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Abstract:

We propose a general approach to speed up quantum adiabatic processes for fast quantum information transfer in a three-level system. In the approach, by using an intermediate Hamiltonian which is assumed to be formed by the original Hamiltonian H0 ( t ) and its counterdiabatic driving Hamiltonian Hcd ( t ) with a simple linear relationship, we design exact dynamics following the eigenstates of the intermediate Hamiltonian to speed up the desired population processes. We apply the present approach to a three-level system to show that by suitably choosing the parameters, not only the population processes could be sped up, but also the existence of the undesired off-diagonal terms, the populations of the intermediate states, and even the shapes of the pulses would be controllable in the speeding up scheme. © 2024 Astro Ltd. All rights, including for text and data mining, AI training, and similar technologies, are reserved.

Keyword:

quantum state transfer shortcuts to adiabaticity three-level system

Community:

  • [ 1 ] [Huang C.-R.]Fujian Special Equipment Inspection and Research Institute, Fuzhou, 350008, China
  • [ 2 ] [Chen Y.-H.]Fujian Key Laboratory of Quantum Information and Quantum Optics, Fuzhou University, Fuzhou, 350116, China
  • [ 3 ] [Chen Y.-H.]Department of Physics, Fuzhou University, Fuzhou, 350116, China

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Source :

Laser Physics Letters

ISSN: 1612-2011

Year: 2024

Issue: 12

Volume: 21

1 . 4 0 0

JCR@2023

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ESI Highly Cited Papers on the List: 0 Unfold All

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Chinese Cited Count:

30 Days PV: 0

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