• 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 ...
• Islands and complexity of eternal black hole and radiation subsystems for a doubly holographic model 

  Bhattacharya, Aranya; Bhattacharyya, Arpan; Nandy, Pratik; Patra, Ayan K (Cornell University Library, 2021-03)

  We study the entanglement islands and subsystem volume complexity corresponding to the left/ right entanglement of a conformal defect in d-dimensions in Randall-Sundrum (RS) braneworld model with subcritical tension brane. ...
• Accretion properties of MAXI J1813-095 during its failed outburst in 2018 

  Jana, Arghajit; Jaisawal, Gaurava K.; Naik, Sachindra; Kumari, Neeraj; Chatterjee, Debjit; Chatterjee, Kaushik; Bhowmick, Riya; Chakrabarti, Sandip K.; Chang, Hsiang-Kuang; Debnath, Dipak (Cornell University Library, 2021-04)

  We present the results obtained from detailed timing and spectral studies of a black hole candidate MAXI~J1813-095 using (it Swift}, (it NICER), and (it NuSTAR) observations during its 2018 outburst. The timing behaviour ...
• Polarization-orbital angular momentum duality assisted entanglement observation for indistinguishable photons 

  Lal, Nijil; Mishra, Sarika; Rani, Anju; Banerji, Anindya; Perumangattu, Chithrabhanu; Singh, R. P. (Cornell University Library, 2021-04)

  Duality in the entanglement of identical particles manifests that entanglement in only one variable can be revealed at a time. We demonstrate this using polarization and orbital angular momentum (OAM) variables of ...
• Freeze-in sterile neutrino dark matter in a class of U(1)' models with inverse seesaw 

  Das, Arindam; Goswami, Srubabati; Vishnudath, K. N.; Poddar, Tanmay Kumar (Cornell University Library, 2021-04)

  We study a class of general U(1)' models to explain the observed dark matter relic abundance and light neutrino masses. The model contains three right handed neutrinos and three gauge singlet Majorana fermions to generate ...
• Circuit complexity as a novel probe of quantum entanglement: a study with black hole gas in arbitrary dimensions 

  Adhikari, Kiran; Choudhury, Sayantan; Chowdhury, Satyaki; Shirish, K.; wain, Abinash (Cornell University Library, 2021-05)

  In this article, we investigate the quantum circuit complexity and entanglement entropy in the recently studied black hole gas framework using the two-mode squeezed states formalism written in arbitrary dimensional spatially ...
• Heavy quark transport in an anisotropic hot QCD medium: collisional and radiative processes 

  Prakash, Jai; Kurian, Manu; Das, Santosh K.; Chandra, Vinod (Cornell University Library, 2021-02)

  The impact of momentum anisotropy on the heavy quark transport coefficients due to collisional and radiative processes in the QCD medium has been studied within the ambit of kinetic theory. Anisotropic aspects (momentum) ...
• Double layers in Weyl geometry and some physical implications 

  Berezin, Victor; Dharmadarshi, Kushan (Cornell University Library, 2021-02)

  In this thesis, we attempt to gain a more complete insight into Double Layer Theories in Weyl Gravity. In order to do this, we first establish the premise of Weyls Theory, including its provenance, development and flaws. ...
• Thermoelectric behaviour of hot collisional and magnetized QCD medium from an effective kinetic theory 

  Kurian, Manu (Cornell University Library, 2021-01)

  The thermoelectric behaviour of quark-gluon plasma has been studied within the framework of an effective kinetic theory by adopting a quasiparticle model to incorporate the thermal medium effects. The thermoelectric response ...
• Random projections in gravitational wave searches from compact binaries II: efficient reconstruction of detection statistic within LLOID framework 

  Reza, Amit; Dasgupta, Anirban; Sengupta, Anand S. (Cornell University Library, 2021-01)

  Low-latency gravitational wave search pipelines such as LLOID take advantage of low-rank factorization of the template matrix via singular value decomposition (SVD). With unprecedented improvements in detector bandwidth ...
• Tunneling of multi-Weyl semimetals through a potential barrier under the influence of magnetic fields 

  Mandal, Ipsita; Sen, Aritra (Cornell University Library, 2020-12)

  We investigate the tunneling of the quasiparticles arising in multi-Weyl semimetals through a barrier consisting of both electrostatic and vector potentials, existing uniformly in a finite region along the transmission ...
• Shadow analysis for rotating black holes in the presence of plasma for an expanding universe 

  Chowdhuri, Abhishek; Bhattacharyya, Arpan (Cornell University Library, 2020-12)

  We explore the structure of shadow for a Kerr-de Sitter black hole with a non-magnetized, pressureless plasma surrounding it. Specific plasma distributions are considered to separate the Hamilton-Jacobi equation and find ...
• Response of a weakly magnetized hot QCD medium to inhomogeneous electric field 

  Gowthama K. K.; Kurian, Manu; Chandra, Vinod (Cornell University Library, 2020-12)

  The electric charge transport in a weakly magnetized hot QCD medium has been investigated in the presence of an external inhomogeneous electric field. The current densities induced by the inhomogeneous electric field have ...
• Flavour specific neutrino self-interaction: H0 tension and IceCube 

  Mazumdar, Arindam; Mohanty, Subhendra; Parashari, Priyank (Cornell University Library, 2020-11)

  Self interaction in the active neutrinos is studied in the literature to alleviate the H0 tension. Similar self-interaction can also explain the observed dips in the flux of the neutrinos, coming from the distant astro-physical ...
• The 2HDM doppelganger 

  Coleppa, Baradhwaj; Sarkar, Agnivo (Cornell University Library, 2020-11)

  We discuss the structure of a model with an extended gauge symmetry group SU(2)�SU(2)�U(1) with a correspondingly rich Electroweak Symmetry Breaking structure. In spite of the additional scalar degrees of freedom in the ...

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