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Physics: Recent submissions

  • Enhancing key rates of QKD protocol by coincidence detection 
    Sharma, Tanya; Bhavsar, Rutvij; Ramakrishnan, Jayanth; Chandravanshi, Pooja; Prabhakar, Shashi; Biswas, Ayan; Singh, R. P. (Cornell University Library, 2024-02)
    In theory, quantum key distribution (QKD) provides unconditional security; however, its practical implementations are susceptible to exploitable vulnerabilities. This investigation tackles the constraints in practical QKD ...
  • Reheating constraints on modified quadratic chaotic inflation 
    Yadav, Sudhava; Goswami, Rajesh; Venkataratnam, K. K.; Yajnik, Urjit A. (Springer, 2024-02)
    The reheating era of inflationary universe can be parameterized by various parameters like reheating temperature Tre, reheating duration Nre and average equation of state parameter wre, which can be constrained by ...
  • Dephasing enabled fast charging of quantum batteries 
    Shastri, Rahul; Jiang, Chao (Cornell University Library, 2024-02)
    We propose and analyze a universal method to obtain fast charging of a quantum battery by a driven charger system using controlled, pure dephasing of the charger. While the battery displays coherent underdamped oscillations ...
  • Probing the inverse moment of Bs-meson distribution amplitude via Bs→ns form factors 
    Mandal, Rusa; Patil, Praveen S.; Ray, Ipsita (Cornell University Library, 2024-02)
    We investigate the inverse moment of the Bs-meson light-cone distribution amplitude (LCDA), denoted as λBs and defined within the heavy quark effective theory, through the calculation of Bs→ηs form factors. The presence ...
  • Long-term X-ray temporal and spectral study of a Seyfert galaxy Mrk 6 
    Layek, Narendranath; Nandi, Prantik; Naik, Sachindra; Kumari, Neeraj; Jana, Arghajit; Chhotaray, Birendra (Oxford University Press, 2024-03)
    We present a long-term X-ray study of a nearby Active Galactic Nucleus Mrk 6, utilizing observations from XMM–Newton, Suzaku, Swift, and NuSTAR observatories, spanning 22 years from 2001 to 2022. From timing analysis, we ...
  • Observations of geomagnetic crochet at high-latitudes due to X1.5 class solar flare on 3 July 2021 
    Rao, S. S.; Srivastava, Nandita; Chakraborty, Monti; Kumar, Sandeep; Chakrabarty, D. (Wiley Open Access, 2024-02)
    On 3 July 2021, an X1.5 solar flare from the National Oceanic and Atmospheric Administration solar Active Region AR12838 (24°N, 88°W) occurred at 14:18 UT, peaked at 14:29 UT, and decayed at 14:34 UT. The study of this ...
  • Review-recent advances of micro/nano-motor-facilitated electrochemical sensor development 
    Mitra, Shirsendu; Basak, Mitali; Saini, Bharti (The Electrochemical Society, 2024-02)
    Micro/-nano motors (MNMs) are deployed to perform cutting edge research and development activities that include biomedical engineering, environment monitoring, energy harvesting and more. MNMs progressively strives for ...
  • B-mesons as essential probes of hot QCD matter 
    Chandra, Vinod; Das, Santosh K. (SpringerOpen, 2024-02)
    This article elucidates the pivotal role of b-mesons and bottomonium states in exploring the existence and properties of hot QCD matter (commonly known as quark-gluon-plasma (QGP) produced within the crucible heavy-ion ...
  • Multicomponent scalar dark matter with an extended gauge sector 
    Coleppa, Baradhwaj; Loho, Kousik; Sarkar, Agnivo (SpringerOpen, 2024-02)
    We consider an extension of the Standard Model of particle physics with an additional SU(2) gauge sector along with an additional scalar bidoublet and a non-linear sigma field. The neutral components of the bidoublet serve ...
  • Pinpointing coalescing binary neutron star sources with the IGWN, including LIGO-Aundha 
    Shukla, Sachin R.; Pathak, Lalit; Sengupta, Anand S. (American Physical Society, 2024-02)
    LIGO-Aundha (A1), the Indian gravitational wave detector, is expected to join the International Gravitational-Wave Observatory Network (IGWN) and begin operations in the early 2030s. We study the impact of this additional ...
  • Velocity distribution of photoelectrons over sunlit moon 
    Sana, Trinesh; Mishra, S. K. (Elsevier, 2024-04)
    Photoelectrons are an integral part of the sunlit lunar plasma environment. This paper formulates the characteristic velocity distribution of the emitted photoelectrons over the sunlit Moon. As an advancement, Fowler’s ...
  • Formation and stability of area quantized black holes 
    Chakravarti, Kabir; Ghosh, Rajes; Sarkar, Sudipta (American Physical Society, 2024-02)
    We investigate the ergoregion instability of area-quantized rotating quantum black holes (QBH) under gravitational perturbation. We show that the instability can be avoided in binary systems that include QBHs if the ...
  • Summertime oxidative potential of atmospheric PM2.5 over New Delhi: effect of aerosol ageing 
    Verma, P. K.; M., Devaprasad; Dave, J.; Meena, R.; Bhowmik, H.; Tripathi, S. N.; Rastogi, N. (Elsevier, 2024-04)
    Exposure to elevated particulate matter (PM) concentrations in ambient air has become a major health concern over urban areas worldwide. Reactive oxygen species (ROS) generation due to ambient PM (termed as their oxidative ...
  • Influence of protein nativity on the stability of bovine serum albumin coated microbubbles 
    Dhara, Palash; Shah, Niyati; Sundaram, Vidya; Srivastava, Ashutosh; Solovev, Alexander A.; Mei, Yongfeng; Gorin, Dmitry A.; Dey, Krishna Kanti (Cell Press, 2024-03)
    Protein coated microbubbles have become one of the emerging platforms in biomedical research as theranostic agents. In recent years, microbubbles have been extensively used as ultrasound contrast agents and carriers of ...
  • Understanding the relative importance of magnetic field, gravity, and turbulence in star formation at the hub of the giant molecular cloud G148.24+00.41 
    Rawat, Vineet; Samal, M. R.; Eswaraiah, Chakali; Wang, Jia-Wei; Elia, Davide; Panigrahy, Sandhyarani; Zavagno, A.; Yadav, R. K.; Walker, D. L.; Jose, J.; Ojha, D. K.; Zhang, C. P.; Dutta, S. (Oxford University Press, 2024-02)
    The relative importance of magnetic fields, turbulence, and gravity in the early phases of star formation is still not well understood. We report the first high-resolution dust polarization observations at 850 μm around ...
  • The giant molecular cloud G148.24+00.41: gas properties, kinematics, and cluster formation at the nexus of filamentary flows 
    Rawat, Vineet; Samal, M. R.; Walker, D. L.; Ojha, D. K.; Tej, A.; Zavagno, A.; Zhang, C. P.; Elia, Davide; Dutta, S.; Jose, J.; Eswaraiah, C.; Sharma, E. (Oxford University Press, 2024-02)
    Filamentary flows towards the centre of molecular clouds have been recognized as a crucial process in the formation and evolution of stellar clusters. In this paper, we present a comprehensive observational study that ...
  • Prompt sky localization of compact binary sources using a meshfree approximation 
    Pathak, Lalit; Munishwar, Sanket; Reza, Amit; Sengupta, Anand S. (American Physical Society, 2024-01)
    The number of gravitational wave signals from the merger of compact binary systems detected in the network of advanced LIGO and Virgo detectors is expected to increase considerably in the upcoming science runs. Once a ...
  • Chromo-turbulent fields and lepton pair production from collisional hot QCD medium 
    Naik, Lakshmi J.; Sreekanth, V.; Kurian, Manu; Chandra, Vinod (Indian National Science Academy, 2024-02)
    We investigate the effects of collisional processes in the hot QCD medium to thermal dilepton production from qq annihilation in relativistic heavy-ion collisions. The non-equilibrium corrections to the momentum distribution ...
  • Non-existence of short hairs for static black holes 
    Acharya, Soham; Sarkar, Sudipta (Cornell University Library, 2024-02)
    The black hole no-short hair theorem establishes a universal lower bound on the extension of hairs outside any 4-dimensional spherically symmetric black hole solutions. We generalise this theorem beyond spherical symmetry, ...
  • Study of reconnection dynamics and plasma relaxation in MHD simulation of a solar flare 
    Agarwal, Satyam; Bhattacharyya, Ramit; Yang, Shangbin (Springer, 2024-02)
    Self-organization in continuous systems is associated with dissipative processes. In particular, for magnetized plasmas, it is known as magnetic relaxation, where the magnetic energy is converted into heat and kinetic ...

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