Traversable wormholes;
f;
(R;
T);
gravity;
Energy conditions;
Shape functions;
BRANS-DICKE WORMHOLES;
DARK ENERGY;
MODELS;
MATTER;
D O I:
10.1007/s10509-020-3743-5
中图分类号:
P1 [天文学];
学科分类号:
0704 ;
摘要:
In the present article, models of traversable wormholes within the f (R, T) modified gravity theory, where R is the Ricci scalar and T is the trace of the energymomentum tensor, are investigated. We have presented some wormhole models, which are formulated from various hypothesis for their matter content, i.e. various relations for their lateral and radial pressure components. The solutions found for the shape functions of the wormholes produced complies with the required metric conditions. The validity of solution is examined by exploring null, strong and dominant energy conditions. It is concluded that the normal matter in the throat may pursue the energy conditions, and it is the higher-order curvature terms, termed as the gravitational field, that supports the non-standard geometries of wormholes in the context of modified gravity.
机构:
Univ KwaZulu Natal, Sch Math Stat & Comp Sci, Astrophys & Cosmol Res Unit, Private Bag X54001, ZA-4000 Durban, South AfricaUniv KwaZulu Natal, Sch Math Stat & Comp Sci, Astrophys & Cosmol Res Unit, Private Bag X54001, ZA-4000 Durban, South Africa
Sahoo, Parbati
Moraes, P. H. R. S.
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h-index: 0
机构:
Univ Sao Paulo, Inst Astron Geofis & Ciencias Atmosfer IAG, Rua Matao 1226,Cidade Univ, BR-05508090 Sao Paulo, SP, Brazil
Inst Tecnol Aeronaut ITA, Dept Fis, BR-12228900 Sao Jose Dos Campos, SP, BrazilUniv KwaZulu Natal, Sch Math Stat & Comp Sci, Astrophys & Cosmol Res Unit, Private Bag X54001, ZA-4000 Durban, South Africa
Moraes, P. H. R. S.
Lapola, Marcelo M.
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机构:
Inst Tecnol Aeronaut ITA, Dept Fis, BR-12228900 Sao Jose Dos Campos, SP, BrazilUniv KwaZulu Natal, Sch Math Stat & Comp Sci, Astrophys & Cosmol Res Unit, Private Bag X54001, ZA-4000 Durban, South Africa
Lapola, Marcelo M.
Sahoo, P. K.
论文数: 0引用数: 0
h-index: 0
机构:
Birla Inst Technol & Sci, Dept Math, Hyderabad Campus, Hyderabad 500078, IndiaUniv KwaZulu Natal, Sch Math Stat & Comp Sci, Astrophys & Cosmol Res Unit, Private Bag X54001, ZA-4000 Durban, South Africa
Sahoo, P. K.
[J].
INTERNATIONAL JOURNAL OF MODERN PHYSICS D,
2021,
30
(13):
机构:
Univ KwaZulu Natal, Astrophys & Cosmol Res Unit, Private Bag X54001, ZA-4000 Durban, South AfricaUniv KwaZulu Natal, Astrophys & Cosmol Res Unit, Private Bag X54001, ZA-4000 Durban, South Africa
Banerjee, Ayan
Singh, Ksh Newton
论文数: 0引用数: 0
h-index: 0
机构:
Natl Def Acad, Pune 411023, Maharashtra, India
Jadavpur Univ, Dept Math, Kolkata 700032, IndiaUniv KwaZulu Natal, Astrophys & Cosmol Res Unit, Private Bag X54001, ZA-4000 Durban, South Africa
Singh, Ksh Newton
Jasim, M. K.
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h-index: 0
机构:
Univ Nizwa, Dept Math & Phys Sci, Nizwa, OmanUniv KwaZulu Natal, Astrophys & Cosmol Res Unit, Private Bag X54001, ZA-4000 Durban, South Africa