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5 papers · 1 filter
Wormholes supported by a combination of normal and quintessential matter in Einstein and Einstein-Maxwell gravity
Peter K. F. Kuhfittig
It is shown in the first part of this paper that a combined model comprising ordinary and quintessential matter can support a traversable wormhole in Einstein-Maxwell gravity. Sinc…
Searching for higher dimensional wormholes with noncommutative geometry
Farook Rahaman, P. K. F. Kuhfittig, Saibal Ray +1
Noncommutative geometry, an offshoot of string theory, replaces point-like structures with smeared objects and has recently been extended to higher dimensions. The purpose of this…
Neutron star interiors and topology change
Peter K. F. Kuhfittig
Quark matter is believed to exist in the center of neutron stars. A combined model consisting of quark matter and ordinary matter is used to show that the extreme conditions existi…
On the stability of thin-shell wormholes in noncommutative geometry
Peter K. F. Kuhfittig
This paper reexamines a special class of thin-shell wormholes that are unstable in general relativity in the framework of noncommutative geometry. It is shown that as a consequence…
Quark matter as dark matter in modeling galactic halo
Farook Rahaman, P. K. F. Kuhfittig, Ruhul Amin +3
Considering the flat rotation curves as input and treating the matter content in the galactic halo region as quark matter, we have found out a background spacetime metric for the r…