Quantum cosmology with k-Essence theory

C.R. Almeida; F. Sbis\'a; J.C. Fabris; Y. Tavakoli

Quantum cosmology with k-Essence theory

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arxiv 1604.00624 v2 pith:KXI4JBEX submitted 2016-04-03 gr-qc astro-ph.COhep-th

Quantum cosmology with k-Essence theory

C.R. Almeida , J.C. Fabris , F. Sbis\'a , Y. Tavakoli This is my paper

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keywords quantumasymptoticallybehaviourbounceclassclassicalconfigurationcorresponding

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A class of $k$-Essence cosmological models, with a power law kinetic term, is quantised in the mini-superspace. It is shown that for a specific configuration, corresponding to a pressureless fluid, a Schr\"odinger-type equation is obtained with the scalar field playing the r\^ole of time. The resulting quantum scenario reveals a bounce, the classical behaviour being recovered asymptotically.

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Sources of matter for wormholes in a k-essence theory
gr-qc 2025-12 conditional novelty 4.0

For three wormhole spacetimes, the paper constructs the k-essence scalar field, scalar potential, and nonlinear electromagnetic Lagrangian (n=1/2) and shows the null energy condition is violated locally in every model.