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Physics: Recent submissions

  • Ghosh, Saptaswa; Bhattacharyya, Arpan (Cornell University Library, 2022-01)
    We investigate the equatorial deflection angle of light rays propagating in Kerr-Newman black-bounce spacetime. Furthermore, we analyze the light ray trajectories and derive a closed-form formula for deflection angle in ...
  • Basak, Tanushree; Coleppa, Baradhwaj; Loho, Kousik (26-08-21)
  • Roy, Soumen; Sengupta, Anand S. (American Physical Society, 2022-05)
    This paper describes the first all-sky search for long-duration, quasimonochromatic gravitational-wavesignals emitted by ultralight scalar boson clouds around spinning black holes using data from the thirdobserving run of ...
  • Mishra, Shubhankar; Roy, Amritendu; Sahoo, Aditi; Satpati, Biswarup; Roychowdhury, Anirban; Mohanty, P. K.; Ghosh, Chandan Kumar; Bhattacharya, Dipten (American Physical Society, 2022-06)
    We report observation of surface-defect-induced room-temperature multiferroicity—surface ferromagnetism (MS at 50 kOe ≈0.005 emu/g), ferroelectricity (PR ≈ 2 nC/cm2), and significantly large magnetoelectric coupling (decrease ...
  • Ngairangbam, Vishal S.; Spannowsky, Michael; Takeuchi, Michihisa (American Physical Society, 2022-05)
    The lack of evidence for new interactions and particles at the Large Hadron Collider (LHC) has motivated the high-energy physics community to explore model-agnostic data-analysis approaches to search for new physics. ...
  • Devi, Monika; Chauhan, Naveen; Rajapara, Haresh; Joshi, Sachin; Singhvi, Ashok K. (Elsevier, 2022-08)
    This study reports athermal fading rates in K-feldspar grains extracted from sediments of varied ages and provenances. Multiple combinations of stimulation and emission spectral regions were examined to identify an optimum ...
  • Konar, Partha; Ngairangbam, Vishal S. (American Physical Society, 2022-06)
    Vector boson fusion established itself as a highly reliable channel to probe the Higgs boson and an avenue to uncover new physics at the Large Hadron Collider. This channel provides the most stringent bound on Higgs's ...
  • Mishra, Shubhankar; Sahoo, Aditi; Mondal, Suchanda; Mandal, P.; Ghosh, Chandan Kumar; Bhattacharya, Dipten (American Institute of Physics (AIP), 2022-05)
    We report on the observation of electric-field-driven resistive transition [abrupt rise in resistivity (𝜌)] at a characteristic threshold field 𝐸𝑡ℎ(𝑇) in an off-stoichiometric composite of W- and Z-type hexaferrite ...
  • Mitra, Shirsendu; Basak, Mitali (Elsevier, 2022-06)
    Substantial advancements have been observed over the years in the research and development of Localized Surface Plasmon Resonance (LSPR). A variety of current and future applications involving anisotropic plasmonic ...
  • Chakrabarty, Nabarun; Konar, Partha; Roshan, Rishav; Show, Sudipta (Cornell University Library, 2022-06)
    If coupled feebly to the Standard Model bath, a dark matter can evade the severe constraints from the direct search experiments. At the same time, such interactions help produce dark matter via the freeze-in mechanism. The ...
  • Mishra, Sarika; Biswas, Ayan; Patil, Satyajeet; Chandravanshi, Pooja; Mongia, Vardaan; Sharma, Tanya; Rani, Anju; Prabhakar, Shashi; Ramachandran, S.; Singh, Ravindra P. (IOP Publishing, 2022-07)
    Free-space quantum communication assumes importance as it is a precursor for satellite-based quantum communication needed for secure key distribution over longer distances. Prepare and measure quantum key distribution (QKD) ...
  • Singh, Naman Deep; Singh, Sunil Kumar (Elsevier, 2022-06)
    Dissolved aluminium (dAl) distribution has been studied over the full vertical water column profiles along the GEOTRACES-India (GI) transect, GI-05, in the Arabian Sea (AS) and the Western Equatorial Indian Ocean (W-Eq.IO) ...
  • Banerjee, Aritra; Bhattacharyya, Arpan; Drashni, Priya; Pawar, Srinidhi (Cornell University Library, 2022-05)
    We probe the contraction from 2d relativistic CFTs to theories with Bondi-Metzner-Sachs(BMS) symmetries, or equivalently Conformal Carroll symmetries, using diagnostics of quantum chaos. Starting from an Ultrarelativistic ...
  • Gowthama K. K.; Kurian, Manu; Chandra, Vinod (Cornell University Library, 2022-05)
    The thermal response of the hot QCD matter has been studied in the presence of a time-varying magnetic field. The impact of magnetic field, its time dependence, and the collision aspects of the medium on thermal transport ...
  • Biswas, Shauvik; Rahman, Mostafizur; Chakraborty, Sumanta (Cornell University Library, 2022-05)
    We have studied the stability of wormhole geometries, under massless scalar, electromagnetic and axial gravitational perturbations, in the context of higher dimensional spacetimes. Intriguingly, the construction of a ...
  • Bhadari, Naval Kishor; Dewangan, Lokesh Kumar; Ojha, Devendra K.; Pirogov, Lev E.; Maity, Arup Kumar (IOP Publishing, 2022-05)
    We study multiwavelength and multiscale data to investigate the kinematics of molecular gas associated with the star-forming complexes G045.49+00.04 (G45E) and G045.14+00.14 (G45W) in the Aquila constellation. An analysis ...
  • Ojha, Narendra; Soni, Meghna; Kumar, Manish; Girach, Imran; Sharma, Som Kumar; Gunthe, Sachin S. (Springer Nature, 2022-05)
    The occurrences of pollution episodes have brought out the strong linkages of pollution with health subsequently catalysing numerous regulations worldwide. Pollution episodes have been driven by a variety of mechanisms ...
  • Bhattacharyya, Arpan; Joshi, Lata Kh.; Sundar, Bhuvanesh (SpringerOpen, 2022-05)
    In this review, we present the ongoing developments in bridging the gap between holography and experiments. To this end, we discuss information scrambling and models of quantum teleportation via Gao-Jafferis-Wall wormhole ...
  • Roy, Soumen; Sengupta, Anand S. et al. (American Physical Society, 2022-04)
    We present directed searches for continuous gravitational waves from the neutron stars in the Cassiopeia A (Cas A) and Vela Jr. supernova remnants. We carry out the searches in the LIGO detector data from the first six ...
  • Sahu, Suraj; Joshi, Bhuwan; Sterling, Alphonse C.; Mitra, Prabir K.; Moore, Ronald L. (American Astronomical Society, 2022-05)
    We analyze the formation mechanism of three homologous broad coronal mass ejections (CMEs) resulting from a series of solar blowout-eruption flares with successively increasing intensities (M2.0, M2.6, and X1.0). The flares ...

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