Explanipedia

Novel 2D Porous Metal–Organic Frameworks: Synthesis, X-Ray Structure, Thermal, and Hirshfeld Surface Analyses Open

Milan Chandra Roy, S. P. Sanyal, Arpan Dolui, Paula Brandão, Zhi Lin · 2025

In the present study, we have developed a series of compounds [M(tcm)2(bix)4]n [where M = Co (1), Ni (2), and Cu (3)] using tricyanomethanide (tcm) and 1,4-bis(imidazol-1-ylmethyl)benzene (bix) ligands. The compounds were characterized by …

A study of warm molecular gas traced by 12CO(3–2) and 13CO(3–2) emission in the N44 molecular cloud using the Atacama Submillimeter Telescope Experiment Open

Susmita Barman, Naslim Neelamkodan, Batool Ilyasi, Kazuki Tokuda, Kisetsu Tsuge , et al. · 2025

We explore the properties of massive molecular clumps in the N44 star-forming region of the Large Magellanic Cloud (LMC) using observations of $^{12}$CO(3–2) and $^{13}$CO(3–2) emission by the Atacama Submillimeter Telescope Experiment (AS…

Classification of flavor dependence of Chiral Magnetic Effect with Deep Neural Network using multiple correlators Open

S. Dey, Abhisek Saha, S. P. Sanyal · 2025

We study the flavor dependence of the Chiral Magnetic Effect (CME) by analyzing two key charge-separation correlators used to characterize the charge separation effect: the conventional $Δγ$ and the recently proposed $R_{ψ_2}$. Using the A…

Gödel, Godot, and the Cosmos: A Theoretical Framework of Absurdity, Incompleteness, and Cosmic Silence Open

S. P. Sanyal · 2025

This theoretical research paper explores the convergence of mathematical incompleteness, astrophysical paradoxes, and absurdist literature through the unifying lens of existential uncertainty. It draws from Kurt Gödel's incompleteness theo…

Magnetic field amplification and decay in cosmic string wakes Open

D. Bisht, Dilip Kumar, Soumen Nayak, S. P. Sanyal · 2024

We do a detailed study on vortex formation in a magnetized plasma within the spacetime of a moving cosmic string using analytical and numerical methods. The conical spacetime around the cosmic string causes the frozen-in magnetic field to …

Geodesic motion of particles in the vicinity of the $κ$-deformed Schwarzchild Black Hole Open

Dilip Kumar, Suman Kumar Panja, Abhisek Saha, S. P. Sanyal · 2024

In this study, we investigate the geodesic motion of a test particle around the Schwarzchild black hole in a $κ$-deformed space-time. We compute a modified Lagrangian to obtain the $κ$-deformed effective potential and find the particle tra…

Asymptotically safe cosmology with non-canonical scalar field Open

Rituparna Mandal, S. P. Sanyal · 2024

We investigate the quantum modified cosmological dynamical equations in a Friedmann-Robertson-Walker universe filled with a barotropic fluid and a general non-canonical scalar field characterized by a Lagrangian similar to k-essence model …

Synchrotron radiation from cosmic string wakes Open

Dilip Kumar, Soumen Nayak, S. P. Sanyal · 2023

Magnetic fields can be generated in cosmic string wakes due to the Biermann mechanism in the presence of neutrino inhomogeneities. As the cosmic string moves through the plasma the small magnetic field is amplified by the turbulence in the…

Magnetic Reconnection in the Wakes of Cosmic Strings Open

Dilip Kumar, S. P. Sanyal · 2023

The motion of cosmic strings in the universe leads to the generation of wakes behind them. We study magnetized wakes of cosmic strings moving in the postrecombination plasma. We show that magnetic reconnection can occur in the postshock re…

Deviations from isotropic turbulence of heavy-ion collision plasma Open

Abhisek Saha, S. P. Sanyal · 2022

At high collision energy, turbulence has been seen at relativistic heavy-ion collisions. We examine the turbulence characteristics in this system and found that the initial and pre-equilibrium phases of the collision show considerable depa…

Magnetic reconnection in the wakes of cosmic strings Open

Dilip Kumar, S. P. Sanyal · 2022

The motion of cosmic strings in the universe leads to the generation of wakes behind them. We study magnetized wakes of cosmic strings moving in the post recombination plasma. We show that magnetic reconnection can occur in the post shock …

Machine-learning model-driven prediction of the initial geometry in heavy-ion collision experiments Open

Abhisek Saha, Debasis Dan, S. P. Sanyal · 2022

We demonstrate high prediction accuracy of three important properties that determine the initial geometry of the heavy-ion collision (HIC) experiments by using supervised Machine Learning (ML) methods. These properties are the impact param…

A Study of Photoionized Gas in Two H ii Regions of the N44 Complex in the LMC Using MUSE Observations Open

Susmita Barman, Naslim Neelamkodan, S. C. Madden, M. Sewiło, F. Kemper , et al. · 2022

We use the optical integral field observations with Multi-Unit Spectroscopic Explorer (MUSE) on the Very Large Telescope, together with CLOUDY photoionization models, to study ionization structure and physical conditions of two luminous H …

Evolution of magnetic fields in cosmic string wakes Open

Soumen Nayak, Sovan Sau, S. P. Sanyal · 2022

We study the evolution of magnetic fields in cosmic string wakes in a plasma with a low resistivity. The initial magnetic field in the wake is modelled on the magnetic fields that are generated by the motion of particles around cosmic stri…

Decay of baryon inhomogeneities in an expanding universe Open

Pratik Kumar Das, Sovan Sau, Abhisek Saha, S. P. Sanyal · 2021

Anisotropic turbulence in relativistic plasmas Open

Abhisek Saha, S. P. Sanyal · 2021

Signs of turbulence have been observed at the relativistic heavy ion collision at high collision energies. We study the signatures of turbulence in this system and find that there are significant departures from isotropic turbulence in the…

Temperature fluctuations and Tsallis statistics in relativistic heavy ion collisions Open

Abhisek Saha, S. P. Sanyal · 2021

In this paper, we study temperature fluctuations in the initial stages of the relativistic heavy ion collision using a multiphase transport model. We consider the plasma in the initial stages after collision before it has a chance to equil…

Generation of magnetic fields in cosmic string wakes Open

Sovan Sau, S. P. Sanyal · 2021

We describe a novel method of generating magnetic fields in cosmic string wakes from neutrino currents. We show that neutrino currents act as a cross-perturbation across the cosmic string wake. This cross perturbation along with the high R…

Temperature fluctuations, turbulence and Tsallis statistics in Relativistic Heavy Ion collisions Open

Abhisek Saha, S. P. Sanyal · 2020

We study temperature fluctuations in the initial stages of the relativistic heavy ion collision. We obtain the spectrum of the temperature fluctuations for the peripheral collisions, assuming that the fluid is turbulent. We find that the l…

Generation of magnetic fields near QCD Transition by collapsing Z(3) domains Open

Abhishek Atreya, S. P. Sanyal · 2018

Structural, Electronic and Elastic Properties of Heavy Fermion YbTM<sub>2</sub> (TM= Ir and Pt) Laves Phase Compounds Open

Harsha Pawar, Mani Shugani, Mahendra Aynyas, S. P. Sanyal · 2018

The structural, electronic and elastic properties of YbTM2 (TM = Ir and Pt) Laves phase intermetallic compounds which crystallize in cubic (MgCu2-type) structure, have been investigated using ab-initio full potential linearized augmented p…

Electron-phonon interaction and superconducting behaviour of ZrB and HfB: A first principle study Open

Deepika Shrivastava, Harsha Pawar, Nikita Acharya, S. P. Sanyal · 2018

The electronic, phonon and superconducting properties for ZrB and HfB in cubic NaCl phase have been studied by using a first principles scheme, based on the application of the plane-wave pseudopotential method, density functional theory, a…

Primordial magnetic field generation in the Quark Gluon Plasma phase Open

Abhishek Atreya, S. P. Sanyal · 2017

In this work we investigate the possibility of generation of primordial magnetic field in the early universe near the QCD phase transition epoch via the collapse of $Z(3)$ domains. The $Z(3)$ domain walls arise in the deconfined phase of t…

Primordial Magnetic Field Via Weibel Instability In The Quark Gluon Plasma Phase Open

Abhishek Atreya, S. P. Sanyal · 2016

The origin of the observed large scale magnetic fields in the Universe is a mystery. The seed of these magnetic fields has been attributed to physical process in the early universe. In this work we provide a mechanism for the generation of…

First-principles theoretical prediction of structural and elastic properties of some AlX intermetallics Open

Gitanjali Pagare, Ekta Jain, Jisha Annie Abraham, S. P. Sanyal · 2015

The structural and elastic properties of aluminum based some intermetallics, AlX (X = Mg, Co, Rh, Pd and Ir) have been investigated using full potential linearized augmented plane wave (FP-LAPW) method based on density functional theory (D…

Theoretical prediction of structural and elastic behavior of AlRu under pressure: A FP-LAPW study Open

Ekta Jain, Gitanjali Pagare, H. V. Saritha Devi, S. P. Sanyal · 2015

Using full potential linearized augmented plane wave (FP-LAPW) method, the structural and elastic properties of AlRu intermetallic compound have been determined within the framework of density functional theory (DFT). The exchange correlat…

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