Type

Type

Sort by: Order: Results:

  • The basic physics of the binary black hole merger GW150914 
    Sengupta, Anand (Wiley-VCH Verlag, 2017-01)
    The first direct gravitational-wave detection was made by the Advanced Laser Interferometer Gravitational Wave Observatory on September 14, 2015. The GW150914 signal was strong enough to be apparent, without using any ...
  • Behaviour of NTE Material Ag3[Co(CN)6] under Pressure 
    Poswal, H. K.; Tripathi, Ravi; Garg, Nandini; Deo, M. N.; Sharma, Surinder M.; Ghalsasi, Pallavi (IOP Publishing, 2012)
    Recent discovery of colossal negative thermal expansion (NTE) behaviour in Silver Hexacyanocobaltate Ag3[Co(CN)6] has triggered interest among researchers to understand the basic mechanism causing such an unusual behaviour. ...
  • Behaviour of NTE material Ag3[Co(CN)6] under pressure 
    Ghalsasi, Pallavi; Poswal, H. K.; Tripathi, Ravi; Garg, Nandini; Deo, M. N.; Sharma, Surinder M. (IOP Publishing, 2012)
    Recent discovery of colossal negative thermal expansion (NTE) behaviour in Silver Hexacyanocobaltate Ag3[Co(CN)6] has triggered interest among researchers to understand the basic mechanism causing such an unusual behaviour. ...
  • Bidisperse silica nanoparticles close-packed monolayer on silicon substrate by three step spin method 
    Khanna, Sakshum; Marathey, Priyanka; Utsav; Chaliyawala, Harsh; Mukhopadhyay, Indrajit (AIP Publishing, 2018-05)
    We present the studies on the structural properties of monolayer Bidisperse silica (SiO2) nanoparticles (BDS) on Silicon (Si-100) substrate using spin coating technique. The Bidisperse silica nanoparticle was synthesised ...
  • Binary black hole mergers in the first advanced LIGO observing run 
    Sengupta, Anand (American Physical Society, 2016-10)
    The first observational run of the Advanced LIGO detectors, from September 12, 2015 to January 19, 2016, saw the first detections of gravitational waves from binary black hole mergers. In this paper, we present full results ...
  • Binary black hole population properties inferred from the first and second observing runs of advanced LIGO and advanced virgo 
    Sengupta, Anand (American Astronomical Society, 2019-09)
    We present results on the mass, spin, and redshift distributions with phenomenological population models using the 10 binary black hole (BBH) mergers detected in the first and second observing runs completed by Advanced ...
  • Black hole and singularity theorems 
    Sarkar, Sudipta (2020-12)
    Prof. Roger Penrose was awarded one-half of the Nobel prize in physics 2020 "for the discovery that black hole formation is a robust prediction of the general theory of relativity." Penrose�s landmark work on singularity ...
  • Black hole entropy production and transport coefficients in Lovelock gravity 
    Fairoos, C.; Ghosh, Avirup; Sarkar, Sudipta (American Physical Society, 2018-07)
    We study the entropy evolution of black holes in Lovelock gravity by formulating a thermodynamic generalization of the null Raychaudhuri equation. We show that the similarity between the expressions of entropy change of ...
  • Black hole entropy with minimal length in tunneling formalism 
    Majumder, Barun (Springer Link, 2013-11)
    Here we study the effects of the Generalized Uncertainty Principle in the tunneling formalism for Hawking radiation to evaluate the quantum-corrected Hawking temperature and entropy for a Schwarzschild black hole. We compare ...
  • Black hole thermodynamics: general relativity and beyond 
    Sarkar, Sudipta (Springer, 2019-05)
    Black holes have often provided profound insights into the nature of gravity and the structure of space�time. The study of the mathematical properties of black objects is a major research theme of contemporary theoretical ...
  • Black hole topology in f(R) gravity 
    Mishra, Akash K.; Rahman, Mostafizur; Sarkar, Sudipta (IOP Publishing, 2018-06)
    Hawking's topology theorem in general relativity restricts the cross-section of the event horizon of a black hole in 3+1 dimension to be either spherical or toroidal. The toroidal case is ruled out by the topology censorship ...
  • Black hole zeroth law in higher curvature gravity 
    Ghosh, Rajes; Sarkar, Sudipta (American Physical Society, 2020-11)
    The zeroth law of black hole mechanics is an assertion of constancy of the surface gravity on a stationary Killing horizon. The Hawking temperature of the black hole horizon is proportional to the surface gravity. Therefore, ...
  • Boosted jet techniques for a supersymmetric scenario with gravitino LSP 
    Bhardwaj, Akanksha; Dutta, Juhi; Konar, Partha; Mukhopadhyaya, Biswarup; Rai, Santosh Kumar (IOP Publishing, 2020-10)
    Search for compressed supersymmetry at multi-TeV scale, in the presence of a light gravitino dark matter, can get sizable uplift while looking into the associated fat- jets with missing transverse momenta as a signature ...
  • Bosonic quantum Hall states in single-layer two-dimensional optical lattices 
    Bai, Rukmani; Bandyopadhyay, Soumik; Pal, Sukla; Suthar, K.; Angom, D. (American Physical Society, 2018-08)
    Quantum Hall (QH) states of two-dimensional (2D) single-layer optical lattices are examined using the Bose-Hubbard model (BHM) in the presence of an artificial gauge field. We study the QH states of both the homogeneous ...
  • Boundary conservation from bulk symmetry 
    Fairoos, C.; Ghosh, Avirup; Sarkar, Sudipta (World Scientific, 2018-10)
    The evolution of the black-hole horizon can be effectively captured by a fictitious membrane fluid living on the stretched horizon. We show that the dynamics of this boundary matter arises from the invariance of the bulk ...
  • Bounds on neutrino mass in viscous cosmology 
    Anand, Sampurn; Chaubal, Prakrut; Mazumdar, Arindam; Mohanty, Subhendra; Parashari, Priyank (IOP Publishing, 2018-05)
    Effective field theoretic description of dark matter fluid on large scales predicts viscosity of the order 10−6 H0 MP2. Recently, it has been shown that the same magnitude of viscosity can resolve the discordance between ...
  • Bulk viscosity of a hot QCD medium in a strong magnetic field within the relaxation-time approximation 
    Kurian, Manu; Chandra, Vinod (American Physical Society, 2018-06)
    The bulk viscosity of hot QCD medium has been obtained in the presence of strong magnetic field. The present investigation involves the estimation of the quark damping rate and subsequently the thermal relaxation time for ...
  • Calculations of shear, bulk viscosities and electrical conductivity in the Polyakov-quark–meson model 
    Singha, Pracheta; Abhishek, Aman; Kadam, Guruprasad; Ghosh, Sabyasachi; Mishra, Hiranmaya (IOP, 2019)
    We have calculated different transport coefficients such as shear, bulk viscosities and electrical conductivity of quark and hadronic matter within the framework of a 2 flavor Polyakov-quark–meson model. For constant thermal ...
  • Calibration of the Advanced LIGO detectors for the discovery of the binary black-hole merger GW150914 
    Gaur, G. (American Physical Society, 2017-03)
    In Advanced LIGO, detection and astrophysical source parameter estimation of the binary black hole merger GW150914 requires a calibrated estimate of the gravitational-wave strain sensed by the detectors. Producing an ...
  • Can nonstandard interactions jeopardize the hierarchy sensitivity of DUNE? 
    Deepthi, K. N.; Goswami, Srubabati; Nath, Newton (American Physical Society, 2017-10)
    We study the effect of nonstandard interactions (NSIs) on the propagation of neutrinos through the Earth's matter and how it affects the hierarchy sensitivity of the DUNE experiment. We emphasize the special case when the ...

Search Digital Repository


Browse

My Account