A. De

ORCID: 0009-0001-5702-827X
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About
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Research Areas
  • Nuclear physics research studies
  • Nuclear reactor physics and engineering
  • Atomic and Molecular Physics
  • Astronomical and nuclear sciences
  • Physics of Superconductivity and Magnetism
  • Nuclear Physics and Applications
  • Superconducting Materials and Applications
  • Quantum many-body systems
  • Quantum Mechanics and Applications
  • Particle physics theoretical and experimental studies
  • Cold Fusion and Nuclear Reactions
  • Nuclear Materials and Properties
  • Particle Accelerators and Free-Electron Lasers
  • Nanoparticle-Based Drug Delivery
  • Nanoparticles: synthesis and applications
  • Cold Atom Physics and Bose-Einstein Condensates
  • Iron-based superconductors research
  • Quantum Chromodynamics and Particle Interactions
  • Protein purification and stability
  • Graphite, nuclear technology, radiation studies
  • Protein Structure and Dynamics
  • Mathematical Biology Tumor Growth
  • Model Reduction and Neural Networks
  • Quantum, superfluid, helium dynamics
  • Gold and Silver Nanoparticles Synthesis and Applications

Hebrew University of Jerusalem
2023-2024

Bankura University
2022

Raiganj University
2015-2021

GSI Helmholtz Centre for Heavy Ion Research
2010

Conductivities and Hall coefficients of two-dimensional hard-core bosons (HCB) are calculated using the thermodynamic expansions Kubo formulas. At temperatures above superfluid transition, resistivity rises linearly is weakly dependent on boson filling. The zeroth-order coefficient diverges toward zero unit fillings, reverses its sign at half correction terms, which up to fourth (Krylov) orders, do not alter this behavior. high temperature thermal reversed relative electric coefficient. We...

10.1103/physrevb.109.035117 article EN Physical review. B./Physical review. B 2024-01-10

We put forward a Monte Carlo algorithm that samples the Euclidean time operator growth dynamics at infinite temperature. Crucially, our approach is free from numerical sign problem for broad family of quantum many-body spin systems, allowing numerically exact and unbiased calculations. apply this methodological headway to study high-frequency mixed-field Ising model in one two dimensions. The resulting display rapid thermalization, supporting recently proposed hypothesis. Physically,...

10.1103/physrevb.110.155135 article EN Physical review. B./Physical review. B 2024-10-15

Recently a controversy has developed regarding the timescales of quasifission and fission processes highly excited (EX > 50 MeV) transuranium uranium-like nuclei. The mass-angle distributions fragments indicate exponential decay law giving timescale order 10-21 sec for process, whereas similar reactions, 10-18 were obtained from crystal blocking technique. In case nuclei, X-ray-fission fragment coincidence technique gives ~10-18 sec, contradicting much shorter nuclear techniques. We think...

10.1051/epjconf/20158600038 article EN cc-by EPJ Web of Conferences 2015-01-01

Background: Earlier measurements of fission lifetimes the highly excited uraniumlike nuclei by K x-ray fluorescence and crystal blocking techniques obtained slow (fission time $\ensuremath{\sim}{10}^{\ensuremath{-}18}\phantom{\rule{0.16em}{0ex}}\mathrm{s}$) for most events were shown to be incompatible with very short ($\ensuremath{\sim}{10}^{\ensuremath{-}20}\phantom{\rule{0.16em}{0ex}}\mathrm{s}$) nuclear also small (\ensuremath{\le}5%) percentage such predicted simple statistical models....

10.1103/physrevc.98.024615 article EN Physical review. C 2018-08-14

Precision tests of decay law radioactive nuclei have not so far found any deviation from the exponential at early time, as predicted by quantum mechanics. In this paper, we show that decoherence time (i.e. timescale nonexponential decay) quasifission or fission process should be order attosecond considering atom fissioning nucleus a detector. Hence, observed even highly excited (EX greater than 50 MeV) transuranium and uraniumlike complexes rather long (of attosecond) in spite their very...

10.48550/arxiv.1503.05346 preprint EN other-oa arXiv (Cornell University) 2015-01-01

Conductivities and Hall coefficients of two dimensional hard core bosons are calculated using the thermodynamic expansions Kubo formulas. At temperatures above superfluid transition, resistivity rises linearly is weakly dependent on boson filling. The zeroth order coefficient diverges toward zero unit fillings, reverses its sign at half correction terms, which up to fourth (Krylov) orders, do not alter this behavior. high temperature thermal reversed relative electric coefficient. We discuss...

10.48550/arxiv.2309.14479 preprint EN other-oa arXiv (Cornell University) 2023-01-01

The high-energy $\ensuremath{\gamma}$ rays have been measured in proton and $\ensuremath{\alpha}$-induced reactions on medium mass target nuclei $^{115}\mathrm{In}$ $^{112}\mathrm{Sn}$, respectively. Theoretical analyses of the spectra performed within Hauser-Feshbach statistical model Akkermans-Gruppelaar exciton formalisms. It is observed that proton-induced reaction has significant contribution from direct-semidirect capture region ${E}_{\ensuremath{\gamma}} \ensuremath{\approx}10--20$...

10.1103/physrevc.105.054602 article EN Physical review. C 2022-05-10
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