1.

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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2.

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/s1005201859110
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3.

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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4.

1/ r potential in higher dimensions
/ Chakraborty, Sumanta ; Dadhich, Naresh
In Einstein gravity, gravitational potential goes as 1/rd3 in d noncompactified spacetime dimensions, which assumes the familiar 1 / r form in four dimensions. [...]
Published in EPJC 78 (2018) 81
10.1140/epjc/s1005201855461
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5.

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/s1005201751385
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6.

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/s100520164512z
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7.

Entropy of a generic null surface from its associated Virasoro algebra
/ Chakraborty, Sumanta ; Bhattacharya, Sourav ; Padmanabhan, T.
Null surfaces act as oneway 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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8.

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/s1005201643940
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9.

Variational principle for gravity with null and nonnull boundaries: a unified boundary counterterm
/ Parattu, Krishnamohan ; Chakraborty, Sumanta ; Padmanabhan, T.
It is common knowledge that the Einstein–Hilbert action does not furnish a wellposed variational principle. [...]
Published in EPJC 76 (2016) 129
10.1140/epjc/s100520163979y
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10.

Discrete quantum spectrum of black holes
/ Lochan, Kinjalk ; Chakraborty, Sumanta
The quantum genesis of Hawking radiation is a longstanding puzzle in black hole physics. [...]
Published in Physics letters B (2016)
10.1016/j.physletb.2016.01.060
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