Zobrazeno 1 - 10
of 122
pro vyhledávání: '"Jolicard, Georges"'
Publikováno v:
Journal of Physics A: Mathematical and Theoretical, 45, 335301, 2012
We show that the adiabatic approximation for nonselfadjoint hamiltonians seems to induce two non-equal expressions for the geometric phase. The first one is related to the spectral projector involved in the adiabatic theorem, the other one is the adi
Externí odkaz:
http://arxiv.org/abs/2206.06748
Autor:
Leclerc, Arnaud, Jolicard, Georges
Publikováno v:
J. Chem. Phys. 152, 204107 (2020)
We propose a wave operator method to calculate eigenvalues and eigenvectors of large parameter-dependent matrices, using an adaptative active subspace. We consider a hamiltonian which depends on external adjustable or adiabatic parameters, using adap
Externí odkaz:
http://arxiv.org/abs/2005.13611
Publikováno v:
J. Phys. B: At. Mol. Opt. Phys. 50, 234002 (2017)
H$_2^+$ is an ideal candidate for a detailed study of strong field coherent control strategies inspired by basic mechanisms referring to some specific photodissociation resonances. Two of them are considered in this work, namely: Zero-width resonance
Externí odkaz:
http://arxiv.org/abs/1703.05618
Publikováno v:
Phys. Rev. A 94, 043409 (2016)
In molecular photodissociation, some specific combinations of laser parameters (wavelength and intensity) lead to unexpected Zero-Width Resonances (ZWR), with in principle infinite lifetimes. Their interest in inducing basic quenching mechanisms have
Externí odkaz:
http://arxiv.org/abs/1607.07371
Publikováno v:
J. Phys. A: Math. Theor. 49 195305 (2016)
A global solution of the Schr\"odinger equation, obtained recently within the wave operator formalism for explicitly time-dependent Hamiltonians [J. Phys. A: Math. Theor. 48, 225205 (2015)], is generalized to take into account the case of multidimens
Externí odkaz:
http://arxiv.org/abs/1604.05545
Autor:
Leclerc, Arnaud, Jolicard, Georges
Publikováno v:
J. Phys. A: Math. Theor. 48 225205 (2015)
A global solution of the Schr\"odinger equation for explicitly time-dependent Hamiltonians is derived by integrating the non-linear differential equation associated with the time-dependent wave operator. A fast iterative solution method is proposed i
Externí odkaz:
http://arxiv.org/abs/1505.03983
Publikováno v:
J. Phys. B: At. Mol. Opt. Phys. 46 (2013) 145503
We present calculations for the action of laser pulses on vibrational transfer within the H2+ and Na2 molecules in the presence of dissipation due to photodissociation of the molecule. The laser fields perform closed loops surrounding exceptional poi
Externí odkaz:
http://arxiv.org/abs/1306.4364
Publikováno v:
J. Phys. A: Math. Theor. 45 (2012) 415201
We show that the definition of instantaneous eigenstate populations for a dynamical non-self-adjoint system is not obvious. The naive direct extension of the definition used for the self-adjoint case leads to inconsistencies; the resulting artifacts
Externí odkaz:
http://arxiv.org/abs/1202.3290
Publikováno v:
Journal of Chemical Physics, vol. 136, issue 1, 014106 (2012)
The Constrained Adiabatic Trajectory Method (CATM) is reexamined as an integrator for the Schr\"odinger equation. An initial discussion places the CATM in the context of the different integrators used in the literature for time-independent or explici
Externí odkaz:
http://arxiv.org/abs/1201.1150
Publikováno v:
The Journal of Chemical Physics, 134, 194111 (2011)
The Constrained Adiabatic Trajectory Method (CATM) allows us to compute solutions of the time-dependent Schr\"odinger equation using the Floquet formalism and Fourier decomposition, using matrix manipulation within a non-orthogonal basis set, provide
Externí odkaz:
http://arxiv.org/abs/1105.3916