Parameter estimation for a Lorentz invariance violation


Abstract in English

We employ techniques from quantum estimation theory (QET) to estimate the Lorentz violation parameters in the 1+3-dimensional flat spacetime. We obtain and discuss the expression of the quantum Fisher information (QFI) in terms of the Lorentz violation parameter $sigma_0$ and the momentum k of the created particles. We show that the maximum QFI is achieved for a specific momentum $k_{mathrm{max}}$. We also find that the optimal precision of estimation of the Lorentz violation parameter is obtained near the Planck scale.

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