Zobrazeno 1 - 10
of 193
pro vyhledávání: '"Jain, Sudhir R."'
Publikováno v:
R. Soc. Open Sci. 11 (2024) 231503
Quantum dynamics of a collection of atoms subjected to phase modulation has been carefully revisited. We present an exact analysis of the evolution of a two-level system (represented by a spinor) under the action of a time-dependent matrix Hamiltonia
Externí odkaz:
http://arxiv.org/abs/2309.04235
We show that quantized superconducting circuits are non-integrable at the classical level of description, adorned by nonlinear resonances amidst stochastic sea. The spectral fluctuations of these quasi-integrable systems exhibit intermediate behaviou
Externí odkaz:
http://arxiv.org/abs/2011.10329
Publikováno v:
Eur. Phys. J. B (2020) 93: 20
We present the relativistic analogue of Anderson localization in one dimension. We use Dirac equation to calculate the transmission probability for a spin-$\frac{1}{2}$ particle incident upon a rectangular barrier. Using the transfer matrix formalism
Externí odkaz:
http://arxiv.org/abs/2003.03958
Data on nuclear level densities extracted from transmission data or gamma energy spectrum store the basic statistical information about nuclei at various temperatures. Generally this extracted data goes through model fitting using computer codes like
Externí odkaz:
http://arxiv.org/abs/1907.09770
Autor:
Dwivedi, Nishchal R., Jain, Sudhir R.
We establish a connection between macroscopic "heating or cooling" of a finite many-body quantum system and the non-adiabatic Landau-Zener-St\"{u}ckelberg transitions between its quantum states. We have considered the well-known Nilsson model for des
Externí odkaz:
http://arxiv.org/abs/1907.09763
Autor:
Joshi, Sandeep, Jain, Sudhir R.
Publikováno v:
RAA 2020 Vol. 20 No. 8, 123(10pp)
We study the phenomenon of neutrino spin-flavor oscillations due to solar magnetic fields. This allows us to examine how significantly the electron neutrinos produced in the solar interior undergo a resonant spin-flavor conversion. We construct analy
Externí odkaz:
http://arxiv.org/abs/1906.09475
Autor:
Singh, Sahil Kumar, Jain, Sudhir R.
Publikováno v:
J. Stat. Mech. (2018) 123102
Coloring the faces of 2-dimensional square lattice with $k$ distinct colors such that no two adjacent faces have the same color is considered by establishing connection between the $k$ coloring problem and a generalized vertex model. Associating the
Externí odkaz:
http://arxiv.org/abs/1806.06751
Autor:
Samajdar, Rhine, Jain, Sudhir R.
Publikováno v:
J. Math. Phys. 59, 012103 (2018)
The exact probability distributions of the amplitudes of eigenfunctions, $\Psi(x, y)$, of several integrable planar billiards are analytically calculated and shown to possess singularities at $\Psi = 0$; the nature of this singularity is shape-depend
Externí odkaz:
http://arxiv.org/abs/1801.00403
Autor:
Jain, Sudhir R., Samajdar, Rhine
Publikováno v:
Rev. Mod. Phys. 89, 045005 (2017)
We present a comprehensive review of the nodal domains and lines of quantum billiards, emphasizing a quantitative comparison of theoretical findings to experiments. The nodal statistics are shown to distinguish not only between regular and chaotic cl
Externí odkaz:
http://arxiv.org/abs/1709.03650
The symmetric components of the spatial part of $S$- and $D$- states' wavefunctions for triton $(^{3}H)$ are investigated utilizing semiclassical expansion (in the powers of $\hbar$). Analysis of the diagonalized Hamiltonian reveals the existence of
Externí odkaz:
http://arxiv.org/abs/1707.00307