SCOAP3 Repository 17 records found  1 - 10nextSearch took 0.02 seconds. 
1. 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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2. 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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3. 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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4. 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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5. 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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6. 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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7. 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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8. Variational principle for gravity with null and non-null boundaries: a unified boundary counter-term / Parattu, Krishnamohan ; Chakraborty, Sumanta ; Padmanabhan, T.
It is common knowledge that the Einstein–Hilbert action does not furnish a well-posed variational principle. [...]
Published in EPJC 76 (2016) 129 10.1140/epjc/s10052-016-3979-y
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9. Discrete quantum spectrum of black holes / Lochan, Kinjalk ; Chakraborty, Sumanta
The quantum genesis of Hawking radiation is a long-standing puzzle in black hole physics. [...]
Published in Physics letters B (2016) 10.1016/j.physletb.2016.01.060
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10. Brown-York quasilocal energy in Lanczos-Lovelock gravity and black hole horizons / Chakraborty, Sumanta ; Dadhich, Naresh
A standard candidate for quasilocal energy in general relativity is the Brown-York energy, which is essentially a two dimensional surface integral of the extrinsic curvature on the two-boundary of a spacelike hypersurface referenced to flat spacetime. [...]
Published in JHEP 1512 (2015) 003 10.1007/JHEP12(2015)003 arXiv:1509.02156
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SCOAP3 Repository : 17 records found   1 - 10next
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