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Abstract: In this letter we calculate the energy loss of highly magnetized neutron stardue to friction with quantum vacuum, namely Quantum Vacuum Friction QVF.Taking into account one-loop corrections in the effective Heisenberg-EulerLagrangian of the light-light interaction, we derive an analytic expression forQVF allowing us to consider magnetic field at the surface of the star as highas $10^{11} $T. In the case of magnetars with high magnetic field above the QEDcritical field, we show that the energy loss by QVF dominates the energy lossprocess. This has important consequences, in particular on the inferred valueof the magnetic field. This also indicates the need for independentmeasurements of magnetic field, energy loss rate, and of the braking index tofully characterize magnetars.

Autor: Arnaud Dupays, Carlo Rizzo, Dimitar Bakalov, Giovanni F. Bignami

Fuente: https://arxiv.org/

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