Search Results - "Deb, B. M"
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Quantum chaos in atoms and molecules under strong external fields
Published in Theoretical chemistry accounts (01-05-2023)“…Nonlinear dynamics in quantum theory is an old area which has received considerable recent impetus. In particular, the possibility and detection of chaos in…”
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Dynamics of a hydrogen atom under a strong, time-dependent magnetic field
Published in Europhysics letters (01-07-2010)“…The dynamics of a hydrogen atom under a strong, time-dependent, short-frequency magnetic field show a quite interesting parametric resonance behaviour. The…”
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Dynamical deformations of the electron density in an H2 molecule under strong, oscillating magnetic fields: an application of time-dependent quantum fluid density functional theory
Published in Molecular physics (01-12-2016)“…Following the time-dependent quantum fluid density functional theory developed in our laboratory, the present quantum-mechanical, dynamical study of the H 2…”
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An investigation into possible quantum chaos in the H 2 molecule under intense laser fields via Ehrenfest phase space (EPS) trajectories
Published in Journal of molecular modeling (01-07-2018)“…By employing the Ehrenfest "phase space" trajectory method for studying quantum chaos, developed in our laboratory, the present study reveals that the H…”
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An investigation into possible quantum chaos in the H2 molecule under intense laser fields via Ehrenfest phase space (EPS) trajectories
Published in Journal of molecular modeling (01-07-2018)“…By employing the Ehrenfest "phase space" trajectory method for studying quantum chaos, developed in our laboratory, the present study reveals that the H 2…”
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Electron dynamics in H2 + molecule-ion under a strong, oscillating magnetic field
Published in Molecular physics (17-06-2020)“…In this work, the dynamics of electronic motion in molecule-ion under an ultrafast, strong, oscillating magnetic field have been studied and compared with…”
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Ehrenfest 'phase-space' trajectories and quantum chaos in He atom under strong, oscillating magnetic fields: an application of time-dependent quantum fluid density functional theory (TDQFDFT)
Published in Molecular physics (03-04-2017)“…Using a dynamical signature proposed earlier from our laboratory, quantum chaos in He atom interacting with strong, oscillating magnetic fields has been…”
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A dynamical signature of quantum chaos in hydrogen atom under strong, oscillating magnetic fields
Published in Europhysics letters (01-06-2011)“…A dynamical signature of quantum chaos is proposed in terms of the nonlinear growth of time-dependent (TD) distance function between two trajectories,…”
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Dynamics of electronic motion in hydrogen atom under parallel strong oscillating magnetic field and intense laser fields
Published in International journal of quantum chemistry (05-03-2016)“…The mechanism of ionization of an H atom interacting with intense laser electric fields is altered when a strong, oscillating magnetic field is applied along a…”
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Use of an intense microwave laser to dissociate a diatomic molecule: Theoretical prediction of dissociation dynamics
Published in Journal of chemical sciences (Bangalore, India) (2012)“…By employing an intense microwave laser of wavelength 116.65 μ m with intensities 1 × 10 13 and 5 × 10 18 W cm − 2 , respectively, the conclusion is reached…”
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One-dimensional multiple-well oscillators: A time-dependent quantum mechanical approach
Published in Pramāṇa (01-10-2002)“…Time-dependent Schrödinger equation (TDSE) is solved numerically to calculate the ground- and first three excited-state energies, expectation values 〈x2j〉,…”
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Does the classically chaotic Henon-Heiles oscillator exhibit quantum chaos under intense laser fields?
Published in Pramāṇa (01-12-2006)Get full text
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Helium atom in intense and superintense laser fields: A new theoretical approach
Published in Pramāṇa (01-03-1997)“…A quantum hydrodynamical study is made of the dynamical changes of a helium atom interacting with lasers of two different intensities, but having the same…”
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Structure, dynamics and quantum chaos in atoms and molecules under strong magnetic fields
Published in Journal of the Indian Chemical Society (01-09-2021)“…Although studies on the interaction of atoms and molecules with external magnetic fields are more than 100 years old, beginning from the pre-quantum-mechanical…”
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Ground-state electronic energies and densities of atomic systems in strong magnetic fields through a time-dependent hydrodynamical equation
Published in International journal of quantum chemistry (2004)“…Through a single time‐dependent (TD) quantum fluid dynamical equation of motion, ground‐state electronic densities and energies in strong magnetic fields (up…”
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Dynamical deformations of the electron density in an H sub(2) molecule under strong, oscillating magnetic fields: an application of time-dependent quantum fluid density functional theory
Published in Molecular physics (01-12-2016)“…Following the time-dependent quantum fluid density functional theory developed in our laboratory, the present quantum-mechanical, dynamical study of the H…”
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