ew_djc

Support repository for the upcoming paper "Spectral response of a nonlinear Jaynes-Cummings model

https://github.com/rurz/ew_djc

Science Score: 67.0%

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Support repository for the upcoming paper "Spectral response of a nonlinear Jaynes-Cummings model

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  • Host: GitHub
  • Owner: rurz
  • License: mit
  • Language: Jupyter Notebook
  • Default Branch: master
  • Size: 3.53 MB
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Created over 1 year ago · Last pushed over 1 year ago
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README.md

Spectral response of a nonlinear Jaynes-Cummings model

Here we will show the numerical simulation of the system, and a comparison with the analytical¹ expressions. If you want an interactive preview, launch the Binder server of the repository, or even easily, open the notebook in Colab.

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The full-Hamiltonian in consideration to simulate is defined as

$$\hat{H}^{D}_{\texttt{JC}} = \frac{\hbar\omega_{c}}{2}(\hat{A}^{\dagger}\hat{A} + \hat{A} \hat{A}^{\dagger}) + \frac{\hbar\omega_a}{2}\hat{\sigma}_{z} - \mathrm{i}\frac{\hbar\Omega_{0}}{2}(\hat{A}\hat{\sigma}_{+} - \hat{A}^{\dagger} \hat{\sigma}_{-}),$$

where $\hat{A} = \hat{a}f(\hat{n})$ the new deformed annihilation operator, that uses the deformation function $f^2(\hat{n})=1+\chi\hat{n}$, for some parameter $\chi$ that acts a deformation strength.

Algorithmically, we define the deformed operators, then the Hamiltonian is used to obtain the evolution operator. This evolution operator is used to translate the operators in the two-time correlation function to a Heisenberg representation, and then the numerical integration of this correlation function is performed. The result is the frequency spectrum from $0$ to $t_{\mathrm{obs}}$.


¹In a strict way, we do a semi-analytical approach, since we obtain the analytical two-time correlation functions, and then we numerically integrate this expression in order to obtain the frequency-dependent spectrum at time $t$.



Authors: L. Medina-Dozal, A.R. Urzúa , D. Aranda-Lozano, Carlos A. Gonz ález-Gutiérrez , J. Récamier , and R. Rom án-Ancheyta.

Code developer: A.R. Urzúa

License: MIT

Owner

  • Name: Alejandro R. Urzúa
  • Login: rurz
  • Kind: user
  • Location: Cuernavaca, Morelos, México
  • Company: Instituto de Ciencias Físicas, UNAM

Theoretical Physicist at ICF UNAM Interested in group theoretical methods in physics and quantum optical systems.

Citation (CITATION.cff)

cff-version: 1.2.0
message: "If you use this software, please cite it as below."
authors:
- family-names: "Alejandro R."
  given-names: "Urzúa"
  orcid: "https://orcid.org/0000-0002-6255-5453"
- family-names: "Luis"
  given-names: "Medina-Dozal"
  orcid: "https://orcid.org/0000-0002-4695-5190"
- family-names: "Diego"
  given-names: "Aranda-Lozano"
- family-names: "Carlos A."
  given-names: "González-Gutiérrez"
  orcid: "https://orcid.org/0000-0002-1734-1405"
- family-names: "José F."
  given-names: "Récamier"
  orcid: "https://orcid.org/0000-0002-5995-0380"
- family-names: "Ricardo"
  given-names: "Román-Ancheyta"
  orcid: "https://orcid.org/0000-0001-6718-8587"
title: "Spectral response of a nonlinear Jaynes-Cummings model"
version: 0.0.1
doi: 10.5281/zenodo.12788271
date-released: 2024-07-20
url: "https://github.com/rurz/EW_DJC"

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Dependencies

environment.yml conda
  • numpy
  • pip
  • python