Wormhole geometries in fourth-order conformal Weyl gravity

摘要: We present an analysis of the classic wormhole geometries based on conformal Weyl gravity, rather than standard general relativity. The main characteristics resulting traversable wormholes remain same as in seminal study by Morris and Thorne, namely, that effective super-luminal motion is a viable consequence metric. Improving previous work subject, we show for particular choices shape redshift functions metric context gravity does not violate energy conditions at or near throat. Some exotic matter might still be needed junction between our solutions flat spacetime, but demonstrate averaged null condition (as evaluated along radial geodesics) satisfied set geometries. Therefore, if fourth-order correct extension relativity, become realistic solution interstellar travel.