Decoherence of a quantum harmonic oscillator system

Authors

  • Xyd D. Agapito ⋅ PH National Institute of Physics, University of the Philippines Diliman
  • Eric A. Galapon ⋅ PH National Institute of Physics, University of the Philippines Diliman

Abstract

In this paper, we extend the internal degree of freedom model to give us decoherence in the level of the system. It is found that decoherence function of the system is a product of two functions that independently depend on the probe wave function and the pointer wave function. We then provide an example of the system decoherence by using a quantum harmonic oscillator as a system and preparing the probe and pointer as ground state quantum harmonic oscillators. It is found that the rate of decoherence is inversely proportional to the differences of the eigenvalues of the system.

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Article ID

SPP-2023-3H-06

Section

Theoretical and Mathematical Physics

Published

2023-07-07

How to Cite

[1]
XD Agapito and EA Galapon, Decoherence of a quantum harmonic oscillator system, Proceedings of the Samahang Pisika ng Pilipinas 41, SPP-2023-3H-06 (2023). URL: https://proceedings.spp-online.org/article/view/SPP-2023-3H-06.