1.

Radion induced inflation on nonflat brane and modulus stabilization
/ Banerjee, Indrani ; Chakraborty, Sumanta ; SenGupta, Soumitra
Warped braneworld models have the potential to provide a plausible resolution to the gauge hierarchy problem but at the cost of introduction of an additional field, namely the interbrane separation or the radion field. [...]
Published in Physical Review D 99 (2019)
10.1103/PhysRevD.99.023515
arXiv:1806.11327
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2.

Decoding infrared imprints of quantum origins of black holes
/ Chakraborty, Sumanta ; Lochan, Kinjalk
We analyze the emission spectrum of a (fundamentally quantum) black hole in the Kerr–Newman family by assuming a discretization of black hole geometry and the holographic entropy–area relation. [...]
Published in Physics letters B 789 (2019) 276286
10.1016/j.physletb.2018.12.028
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3.

Noether current, black hole entropy and spacetime torsion
/ Chakraborty, Sumanta ; Dey, Ramit
We show that the presence of spacetime torsion, unlike any other nontrivial modifications of the Einstein gravity, does not affect black hole entropy. [...]
Published in Physics letters B 786 (2018) 432441
10.1016/j.physletb.2018.10.027
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4.

A comment on generalized Schwinger effect
/ Rajeev, Karthik ; Chakraborty, Sumanta ; Padmanabhan, T.
A spatially homogeneous, timedependent, electric field can produce charged particle pairs from the vacuum. [...]
Published in EPJC 78 (2018) 836
10.1140/epjc/s1005201863102
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5.

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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6.

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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7.

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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8.

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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9.

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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10.

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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