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E-print Articles: Recent submissions

  • Reheating constraints on modified quadratic chaotic inflation 
    Yadav, Sudhava; Goswami, Rajesh; Venkataratnam, K. K.; Yajnik, Urjit A. (Cornell University Library, 2023-09)
    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 omega---re, which can be constrained by ...
  • Exploring magnetic coupling of solar atmosphere through frequency modulations of 3-min slow magnetoacoustic waves 
    Rawat, Ananya; Gupta, Girjesh (Cornell University Library, 2023-09)
    Coronal fan loops rooted in sunspot umbra show outward propagating waves with subsonic phase speed and period around 3-min. However, their source region in the lower atmosphere is still ambiguous. We performed multi-wavelength ...
  • Controlling work output and coherence in finite time quantum otto engines through monitoring 
    Shastri, Rahul; Venkatesh, B. Prasanna (Cornell University Library, 2023-08)
    We examine the role of diagnostic quantum measurements on the work statistics of a finite-time quantum Otto heat engine operated in the steady-state. We consider three pointer-based measurement schemes that differ in the ...
  • Chandrayaan-3 alternate landing site: pre-landing characterisation 
    Karanam, Durga Prasad; Misra, Dibyendu; Amitabh; Bhatt, Megha; Ambily, G.; Sathyan, Sachana; Srivastava, Neeraj; Bhardwaj, Anil (Cornell University Library, 2023-08)
    India's third Moon mission Chandrayaan 3 will deploy a lander and a rover at a high latitude location of the Moon enabling us to carry out first ever in-situ science investigations of such a pristine location that will ...
  • Constraining inverse moment of B-meson distribution amplitude using Lattice QCD data 
    Mandal, Rusa; Nandi, Soumitra; Ray, Ipsita (Cornell University Library, 2023-08)
    We constrain the inverse moment of the B-meson light-cone distribution amplitude (LCDA), lambda B in heavy quark effective theory, using form factor estimates from Lattice QCD collaboration. The estimation of the parameter ...
  • Sensitivity to CP discovery in the presence of Lorentz invariance violating potential at T2HK/T2HKK 
    Chakraborty, Kaustav; Goswami, Srubabati; Pan, Supriya (Cornell University Library, 2023-08)
    Investigation of conservation/violation of CP symmetry in the leptonic sector is very essential in understanding the evolution of the universe. Lorentz invariance and CPT are fundamental symmetries of nature. The violation ...
  • CFT reconstruction of local bulk operators in half-Minkowski space 
    Bhattacharyya, Arpan; Dogra, Manas; Roy, Shubho R. (Cornell University Library, 2023-08)
    We construct a holographic map that reconstructs massless fields (scalars, Maxwell field \& Fierz-Pauli field) in half-Minkowski spacetime in d+1 dimensions terms of smeared primary operators in a large N factorizable CFT ...
  • Exploring source region of 3-min slow magnetoacoustic waves observed in coronal fan loops rooted in sunspot umbra 
    Rawat, Ananya; Gupta, Girjesh R. (Cornell University, 2023-08)
    Sunspots host various oscillations and wave phenomena like umbral flashes, umbral oscillations, running penumbral waves, and coronal waves. All fan loops rooted in sunspot umbra constantly show a 3-min period propagating ...
  • Electrical detection and nucleation of a magnetic skyrmion in a magnetic tunnel junction observed via operando magnetic microscopy 
    Larranaga, J. Urrestarazu; Sisodia, Naveen; Pham, Van Tuong; Di Manici, Ilaria; Masseboeuf, Aurelien; Garello, Kevin; Disdier, Florian; Fernandez, Bruno; Wintz, Sebastian; Weigand, Markus; Belmeguenai, Mohamed; Pizzini, Stefania; Sousa, Ricardo; Buda-Prejbeanu, Liliana; Gaudin, Gilles; Boulle, Olivier (Cornell University, 2023-08)
    Magnetic skyrmions are topological spin textures which are envisioned as nanometre scale information carriers in magnetic memory and logic devices. The recent demonstration of room temperature stabilization of skyrmions ...
  • Exploring freeze-out and freeze-in dark matter via effective Froggatt-Nielsen theory 
    Mandal, Rusa; Tong, Tom (Cornell University, 2023-07)
    Motivated by the dynamical reasons for the hierarchical structure of the Yukawa sector of the Standard Model (SM), we consider an extension of the SM with a complex scalar field, known as 'flavon', based on the Froggatt-Nielsen ...
  • Krylov complexity and spectral form factor for noisy random matrix models 
    Bhattacharyya, Arpan; Haque, S. Shajidul; Jafari, Ghadir; Murugan, Jeff; Rapotu, Dimakatso (Cornell University, 2023-07)
    We study the spectral properties of two classes of random matrix models: non-Gaussian RMT with quartic and sextic potentials, and RMT with Gaussian noise. We compute and analyze the quantum Krylov complexity and the spectral ...
  • Multicomponent scalar dark matter with an extended gauge sector 
    Coleppa, Baradhwaj; Loho, Kousik; Sarkar, Agnivo (Cornell University, 2023-07)
    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 ...
  • LFSR based RNG on low cost FPGA for QKD applications 
    Chandravanshi, Pooja; Meka, Jaya Krishna; Mongia, Vardaan; Singh, Ravindra P.; Prabhakar, Shashi (Cornell University, 2023-07)
    Linear-feedback shift register (LFSR) based pseudo-random number generator (PRNG) has applications in a plethora of fields. The issue of being linear is generally circumvented by introducing non-linearities as per the ...
  • Advanced Monte Carlo simulation techniques to study polymers under equilibrium conditions 
    Angwani, Monika; Mahendrakar, Tushar; Rane, Kaustubh (Cornell University, 2023-07)
    The advances in materials and biological sciences have necessitated the use of molecular simulations to study polymers. The Markov chain Monte Carlo simulations enable the sampling of relevant microstates of polymeric ...
  • Probing mass orderings in presence of a very light sterile neutrino in a liquid argon detector 
    Chatterjee, Animesh; Goswami, Srubabati; Pan, Supriya (Cornell University, 2023-07)
    Results from experiments like LSND and MiniBooNE hint towards the possible presence of an extra eV scale sterile neutrino. The addition of such a neutrino will significantly impact the standard three flavour neutrino ...
  • Polarization of spin-1/2 particles with effective spacetime dependent masses 
    Bhadury, Samapan; Das, Arpan; Florkowski, Wojciech; Gowthama, K. K.; Ryblewski, Radoslaw (Cornell University, 2023-07)
    Semiclassical expansion of the Wigner function for spin-1/2 fermions having an effective spacetime-dependent mass is used to analyze spin-polarization effects. The existing framework is reformulated to obtain a differential ...
  • Use of non-maximal entangled state for free space BBM92 quantum key distribution protocol 
    Biswas, Ayan; Mishra, Sarika; Patil, Satyajeet; Banerji, Anindya; Prabhakar, Shashi; Singh, Ravindra P. (Cornell University Library, 2023-07)
    Satellite-based quantum communication for secure key distribution is becoming a more demanding field of research due to its unbreakable security. Prepare and measure protocols such as BB84 consider the satellite as a trusted ...
  • Probing astrophysical environment with eccentric extreme mass-ratio inspirals 
    Rahman, Mostafizur; Kumar, Shailesh; Bhattacharyya, Arpan (Cornell University Library, 2023-06)
    The discovery of gravitational waves and black holes has started a new era of gravitational wave astronomy that allows us to probe the underpinning features of gravity and astrophysics in extreme environments of the universe. ...
  • Hairy black holes: non-existence of short hairs and bound on light ring size 
    Ghosh, Rajes; Sk, Selim; Sarkar, Sudipta (Cornell University Library, 2023-06)
    Several hairy black hole solutions are known to violate the original version of the celebrated no-hair conjecture. This prompted the development of a new theorem that establishes a universal lower bound on the extension ...
  • Gravitational radiation from hyperbolic encounters in the presence of dark matter 
    Chowdhuri, Abhishek; Singh, Rishabh Kumar; Kangsabanik, Kaushik; Bhattacharyya, Arpan (Cornell University Library, 2023-06)
    In this study, we look into binaries undergoing gravitational radiation during a hyperbolic passage. Such hyperbolic events can be a credible source of gravitational waves in future detectors. We systematically calculate ...

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