5–8 Apr 2027
Imbituba, S.C., Brazil
America/Sao_Paulo timezone

Can Effects of a Generalized Uncertainty Principle Appear in Compact Stars?

Not scheduled
20m
Vida Sol e Mar EcoResort (Imbituba, S.C., Brazil)

Vida Sol e Mar EcoResort

Imbituba, S.C., Brazil

Estrada Geral da Praia do Rosa s/n – Imbituba – SC Bairro Praia do Rosa
Oral

Speaker

Dr DIMITER HADJIMICHEF (UFRGS)

Description

In the present contribution, a preliminary analysis of the effects of the Generalized Uncertainty Principle (GUP) with a minimum length, in the context of compact stars, is performed. On basis of a deformed Poisson canonical algebra with a parametrized minimum length scale that induces deviations from conventional Quantum Mechanics, fundamental questions involving the consistence, evidences and proofs of this approach
as a possible cure for unbounded energy divergence are outlined. The incorporation of GUP effects into semiclassical 2N-dimensional systems is made by means of a time-invariant distortion transformation applied to their non-deformed counterparts. Assuming the quantum hadrodynamics $\sigma-\omega$ approach as a toy-model, due to its simplicity and structured description of neutron stars, we perform a preliminary analysis of GUP effects with a minimum spacetime
length on these compact objects. The corresponding results for the equation of state and the mass-radius relation for neutron stars are in tune with recent observations with a maximum mass around $2.5 M_{\odot}$ and radius close to $12$ km. Our results also indicate the smallness of the noncommutative scale.

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