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E-print Articles: Recent submissions

  • Complexity of warped conformal field theory 
    Bhattacharyya, Arpan; Katoch, Gaurav; Roy, Shubho R. (Cornell University Library, 2022-02)
    Warped conformal field theories in two dimensions are exotic nonlocal, Lorentz violating field theories characterized by Virasoro-Kac-Moody symmetries and have attracted a lot of attention as candidate boundary duals to ...
  • Asymmetric self-interacting dark matter via Dirac leptogenesis 
    Dutta, Manoranjan; Narendra, Nimmala; Sahu, Narendra; Shil, Sujay (Cornell University Library, 2022-02)
    The nature of neutrinos, whether Dirac or Majorana, is hitherto not known. Assuming that the neutrinos are Dirac, which needs B?L to be an exact symmetry, we make an attempt to explain the observed proportionality between ...
  • Bounding the boundless: constraining topological Gauss-Bonnet coupling from GW150914 
    Chakravarti, Kabir; Ghosh, Rajes; Sarkar, Sudipta (Cornell University Library, 2022-01)
    Recent gravitational wave observation based on the data from GW150914 has firmly confirmed Hawking's area theorem and estimated the increase in total horizon area during a merger process of two Kerr black holes. We use ...
  • The prospect of distinguishing astrophysical objects with LISA 
    Rahman, Mostafizur; Bhattacharyya, Arpan (Cornell University Library, 2021-12)
    The famous no-hair theorem dictates that the multipole moments of Kerr black holes depend only on their mass and angular momentum. Thus, the measurement of multipole moments of astrophysical objects through gravitational-wave ...
  • Signature of non-uniform area quantization on black hole echoes 
    Chakravarti, Kabir; Ghosh, Rajes; Sarkar, Sudipta (Cornell University, 2021-12)
    A classical black hole is characterized by a horizon that absorbs radiation of all frequencies incident on it. Perturbation of these black holes is well-understood via exponentially damped sinusoids known as quasi-normal ...
  • Bath deformations, islands and holographic complexity 
    Bhattacharya, Aranya; Bhattacharyya, Arpan; Nandy, Pratik; Patra, Ayan K. (Cornell University, 2021-12)
    Considering a doubly holographic model, we study the evolution of holographic subregion complexity corresponding to deformations of bath state by a relevant scalar operator, which corresponds to a renormalization group ...
  • Effect of thermal shear on longitudinal spin polarization in a thermal model 
    Florkowski, Wojciech; Kumar, Avdhesh; Mazeliauskas, Aleksas; Ryblewski, Radoslaw (Cornell University Library, 2021-12)
    By including the recently introduced thermal shear term that contributes to the spin polarization vector at local equilibrium, we determine longitudinal polarization of ? hyperons emitted from a hot and rotating hadronic ...
  • Selective transport of water molecules through interlayer spaces in graphite 
    Saini, Lalita; Nemala, Siva Sankar; Rathi, Aparna; Kaushik, Suvigya; Kalon, Gopinadhan (Cornell University Library, 2021-12)
    Interlayer space in graphite is impermeable to ions and molecules, including protons. Its controlled expansion would find several applications in desalination, gas purification, high-density batteries, etc. In the past, ...
  • Complexity for open quantum system 
    Bhattacharyya, Arpan; Hanif, Tanvir; Haque, S. Shajidul; Rahman, Md Khaledur (Cornell University Library, 2021-12)
    We study the complexity for an open quantum system. Our system is a harmonic oscillator coupled to a one-dimensional massless scalar field, which acts as the bath. Specifically, we consider the reduced density matrix by ...
  • Quantum information scrambling: from holography to quantum simulators 
    Bhattacharyya, Arpan; Joshi, Lata Kh; Sundar, Bhuvanesh (Cornell University Library, 2021-11)
    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 ...
  • Constraints on ultralight axions, vector gauge bosons, and unparticles from geodetic and frame-dragging effects 
    Poddar, Tanmay Kumar (Cornell University Library, 2021-11)
    The geodetic and frame-dragging effects are the direct consequences of the spacetime curvature near earth which can be probed from the Gravity probe B satellite. The satellite result matches quite well with Einstein's ...
  • Dragging heavy quark in an anisotropic QCD medium beyond the static limit 
    Kumar, Avdhesh; Kurian, Manu; Das, Santosh K.; Chandra, Vinod (Cornell University Library, 2021-11)
    Heavy quark dynamics in an anisotropic QCD medium have been analyzed within the Fokker-Planck approach. Heavy quark drag force and momentum diffusion tensor have been decomposed by employing a general tensor basis for an ...
  • Probing light dark matter particles with astrophysical experiments 
    Poddar, Tanmay Kumar (Cornell University Library, 2021-10)
    The evidence of gravitational wave was first indirectly confirmed by the orbital period loss of Hulse-Taylor binary system which agrees well with the Einstein's general relativistic prediction. The perihelion precession ...
  • The life and science of Thanu Padmanabhan (1957-2021) 
    Sarkar, Sudipta et al. (Cornell University Library, 2021-10)
    Thanu Padmanabhan was a renowned Indian theoretical physicist known for his research in general relativity, cosmology, and quantum gravity. In an extraordinary career spanning forty-two years, he published more than three ...
  • Acceleration of solar energetic particles by the shock of interplanetary coronal mass ejection 
    Mondal, Shanwlee Sow; Sarkar, Aveek; Vaidya, Bhargav; Mignone, Andrea (Cornell University Library, 2021-10)
    Interplanetary Coronal Mass Ejection (ICME) shocks are known to accelerate particles and contribute significantly to Solar Energetic Particle (SEP) events. We have performed Magnetohydrodynamic-Particle in Cell (MHD-PIC) ...
  • Partial islands and subregion complexity in geometric secret-sharing model 
    Bhattacharya, Aranya; Bhattacharyya, Arpan; Nandy, Pratik; Patra, Ayan K. (Cornell University Library, 2021-09)
    We compute the holographic subregion complexity of a radiation subsystem in a geometric secret-sharing model of Hawking radiation in the "complexity=volume" proposal. The model is constructed using multiboundary wormhole ...
  • Heavy quark transport coefficients in a viscous QCD medium with collisional and radiative processes 
    Shaikh, Adiba; Kurian, Manu; Das, Santosh K.; Chandra, Vinod; Dash, Sadhana; Nandi, Basanta K. (Cornell University Library, 2021-05)
    The heavy quark drag and momentum diffusion coefficients in the presence of both the collisional and radiative processes have been studied in a hot viscous QCD medium. The thermal medium effects are incorporated by employing ...
  • An update on the two singlet dark matter model 
    Basak, Tanushree; Coleppa, Baradhwaj; Loho, Kousik (Cornell University Library, 2021-05)
    We revisit the two real singlet extension of the Standard Model with a Z2 *Z'2 symmetry. One of the singlet scalars S2, by virtue of an unbroken Z'2 symmetry, plays the role of a stable dark matter candidate. The other ...
  • Ringdown of charged compact objects using membrane paradigm 
    Rahman, Mostafizur; Bhattacharyya, Arpan (Cornell University Library, 2021-03)
    Although the black holes are an integral part of the standard model of astrophysics and cosmology, their existence poses some serious fundamental problems. In recent years, several horizonless compact object models were ...
  • Constraints on axionic fuzzy dark matter from light bending and Shapiro time delay 
    Poddar, Tanmay Kumar (Cornell University Library, 2021-04)
    Ultralight axion like particles (ALPs) of mass ma(10-021eV-10-22eV) with axion decay constant fa 1017GeV can be candidates for fuzzy dark matter (FDM). If celestial bodies like Earth and Sun are immersed in a low mass ...

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