SCOAP3 Repository 20 records found  1 - 10nextSearch took 0.02 seconds. 
1. Noether current, black hole entropy and spacetime torsion / Chakraborty, Sumanta ; Dey, Ramit
We show that the presence of spacetime torsion, unlike any other non-trivial modifications of the Einstein gravity, does not affect black hole entropy. [...]
Published in Physics letters B 786 (2018) 432-441 10.1016/j.physletb.2018.10.027
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2. A comment on generalized Schwinger effect / Rajeev, Karthik ; Chakraborty, Sumanta ; Padmanabhan, T.
A spatially homogeneous, time-dependent, electric field can produce charged particle pairs from the vacuum. [...]
Published in EPJC 78 (2018) 836 10.1140/epjc/s10052-018-6310-2
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3. On the physical process first law for dynamical black holes / Mishra, Akash ; Chakraborty, Sumanta ; Ghosh, Avirup ; Sarkar, Sudipta
Physical process version of the first law of black hole mechanics relates the change in entropy of a perturbed Killing horizon, between two asymptotic cross sections, to the matter flow into the horizon. [...]
Published in JHEP 1809 (2018) 034 10.1007/JHEP09(2018)034 arXiv:1709.08925
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4. Unruh effect for inertial observers through vacuum correlations / Lochan, Kinjalk ; Chakraborty, Sumanta ; Padmanabhan, T.
We study a dynamic version of the Unruh effect in a two dimensional collapse model forming a black hole. [...]
Published in EPJC 78 (2018) 433 10.1140/epjc/s10052-018-5911-0
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5. Field Equations for Lovelock Gravity: An Alternative Route / Chakraborty, Sumanta
We present an alternative derivation of the gravitational field equations for Lovelock gravity starting from Newton’s law, which is closer in spirit to the thermodynamic description of gravity. [...]
Published in Advances in High Energy Physics 2018 (2018) 6509045 10.1155/2018/6509045 arXiv:1704.07366v1
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6. 1/ r potential in higher dimensions / Chakraborty, Sumanta ; Dadhich, Naresh
In Einstein gravity, gravitational potential goes as 1/rd-3 in d non-compactified spacetime dimensions, which assumes the familiar 1 /  r form in four dimensions. [...]
Published in EPJC 78 (2018) 81 10.1140/epjc/s10052-018-5546-1
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7. Gravity stabilizes itself / Chakraborty, Sumanta ; SenGupta, Soumitra
We show that a possible resolution to the stabilization of an extra spatial dimension (radion) can be obtained solely in the context of gravitational dynamics itself without the necessity of introducing any external stabilizing field. [...]
Published in EPJC 77 (2017) 573 10.1140/epjc/s10052-017-5138-5
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8. Kinematics of radion field: a possible source of dark matter / Chakraborty, Sumanta ; SenGupta, Soumitra
The discrepancy between observed virial and baryonic mass in galaxy clusters have lead to the missing mass problem. [...]
Published in EPJC 76 (2016) 648 10.1140/epjc/s10052-016-4512-z
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9. Entropy of a generic null surface from its associated Virasoro algebra / Chakraborty, Sumanta ; Bhattacharya, Sourav ; Padmanabhan, T.
Null surfaces act as one-way membranes, blocking information from those observers who do not cross them (e.g., in the black hole and the Rindler spacetimes) and these observers associate an entropy (and temperature) with the null surface. [...]
Published in Physics letters B (2016) 10.1016/j.physletb.2016.10.059
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10. Solving higher curvature gravity theories / Chakraborty, Sumanta ; SenGupta, Soumitra
Solving field equations in the context of higher curvature gravity theories is a formidable task. [...]
Published in EPJC 76 (2016) 552 10.1140/epjc/s10052-016-4394-0
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SCOAP3 Repository : 20 records found   1 - 10next
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