A method to calculate effective Hamiltonians in quantum information

doi:10.1088/1674-1056/ab4d43

Abstract Effective Hamiltonian method is widely used in quantum information. We introduce a method to calculate effective Hamiltonians and give two examples in quantum information to demonstrate the method. We also give a relation between the effective Hamiltonian in the Shrödinger picture and the corresponding effective Hamiltonian in the interaction picture. Finally, we present a relation between our effective Hamiltonian method and the James-Jerke method which is currently used by many authors to calculate effective Hamiltonians in quantum information science.

Keywords: effective Hamiltonian method quantum information

Received: 02 August 2019
Revised: 11 September 2019
Accepted manuscript online:

PACS:

03.67.-a

(Quantum information)

Fund: Project supported by the National Natural Science Foundation of China (Grant No. 11674059).

Corresponding Authors: Ming-Yong Ye
E-mail: myye@fjnu.edu.cn

Cite this article:

Jun-Hang Ren(任军航), Ming-Yong Ye(叶明勇), Xiu-Min Lin(林秀敏) A method to calculate effective Hamiltonians in quantum information 2019 Chin. Phys. B 28 110305

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A method to calculate effective Hamiltonians in quantum information

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