Alexandra Viel

CNRS Senior Researcher
94 %
Libre accès
64
Documents

Présentation

Researcher ID : A-7894-2008
Membre du Quantum Dynamics Network (QDN)
Accès alternatif à ma production scientifique

Publications

5
4
3
1
1
2
3
1
2
1
4
2
2
1
3
2
4
2
5
5
4
2
2
2
1
56
39
20
17
17
15
15
14
7
6
5
5
4
4
4
4
3
2
2
2
1
1
1
1
1
1
1
1
1
1
5
3
2
1

Publications

Deposit thumbnail

Line shape parameters of the first pure rotational R lines of CO in helium baths down to a few kelvins

Franck Thibault , Alexandra Viel , Kevin Dunseath , Magnus Gustafsson

The Journal of Chemical Physics, 2025, 162 (9), pp.094305-1-15. ⟨10.1063/5.0253846⟩

Article dans une revue hal-04953342v1
Deposit thumbnail

Quasi-infinite order vibronic coupling expansions with neural networks for linear systems: the C$_4$H radical

David M. G. Williams , Alexandra Viel

The Journal of Chemical Physics, 2025, 163 (2), pp.024136-1-10. ⟨10.1063/5.0272604⟩

Article dans une revue hal-05092956v1
Deposit thumbnail

Line shape parameters of the first pure rotational R lines of CO in H$_2$ baths down to a few kelvins

Franck Thibault , Alexandra Viel , Kevin Dunseath , Magnus Gustafsson

The Journal of Chemical Physics, 2025, 163 (13), pp.134303. ⟨10.1063/5.0287396⟩

Article dans une revue hal-05251059v1
Deposit thumbnail

Electronic quenching of sulfur induced by argon collisions

David M. G. Williams , Nicole Weike , Manuel Lara , Kevin Dunseath , Alexandra Viel

Physical Chemistry Chemical Physics, 2025, 27 (7), pp.3722-3731. ⟨10.1039/D4CP04586F⟩

Article dans une revue hal-04907815v2
Deposit thumbnail

Universal diabatic representation of operators using C$_{nv}$/D$_{nh}$ symmetry - I. General derivation

Jean Paul Nshuti , David M. G. Williams , Alexandra Viel

The Journal of Chemical Physics, 2025, 163 (3), pp.034112-1-12. ⟨10.1063/5.0278678⟩

Article dans une revue hal-05115228v1
Deposit thumbnail

Hydrogen - iodine scattering: II. Rovibronic analysis and collisional dynamics

Nicole Weike , Wolfgang Eisfeld , Kevin Dunseath , Alexandra Viel

The Journal of Chemical Physics, 2024, 161 (1), pp.014302-1-18. ⟨10.1063/5.0219156⟩

Article dans une revue hal-04604258v2
Deposit thumbnail

Revisiting the rovibrational (de-)excitation of molecular hydrogen by helium

Hubert Jóźwiak , Franck Thibault , Alexandra Viel , Piotr Wcisło , François Lique

Astronomy & Astrophysics - A&A, 2024, 685, pp.A113-1-8. ⟨10.1051/0004-6361/202348645⟩

Article dans une revue hal-04476329v2
Deposit thumbnail

Measurements and calculations of collisional line parameters for Raman lines of CO perturbed by H$_{2}$

Franck Thibault , Denis Paredes-Roibas , Alexandra Viel , Raul Z. Martinez

Journal of Quantitative Spectroscopy and Radiative Transfer, 2024, 315, pp.108874. ⟨10.1016/j.jqsrt.2023.108874⟩

Article dans une revue hal-04346731v1
Deposit thumbnail

2500 vibronic eigenstates of the NO$_3$ radical

Henrik Larsson , Alexandra Viel

Physical Chemistry Chemical Physics, 2024, 26 (37), pp.24506-24523. ⟨10.1039/D4CP02653E⟩

Article dans une revue hal-04677533v1
Deposit thumbnail

Simulation of argon induced coupling coefficients of NH$_3$ doublets and their speed dependence

Franck Thibault , Alexandra Viel , Christian Boulet

Journal of Quantitative Spectroscopy and Radiative Transfer, 2023, 296, pp.108453-1-12. ⟨10.1016/j.jqsrt.2022.108453⟩

Article dans une revue hal-03880274v1
Deposit thumbnail

Hydrogen - iodine scattering: I. Development of an accurate spin-orbit coupled diabatic potential energy model

Nicole Weike , Alexandra Viel , Wolfgang Eisfeld

The Journal of Chemical Physics, 2023, 159 (24), pp.244119-1-13. ⟨10.1063/5.0186787⟩

Article dans une revue hal-04325112v1
Deposit thumbnail

Simulation of the photodetachment spectra of the nitrate anion (NO3-) in the B 2E' energy range and non-adiabatic electronic population dynamics of NO3

David M. G. Williams , Wolfgang Eisfeld , Alexandra Viel

Physical Chemistry Chemical Physics, 2022, 24 (40), pp.24706-24713. ⟨10.1039/D2CP02873E⟩

Article dans une revue hal-03740299v1
Deposit thumbnail

Accurate quantum dynamics simulation of the photodetachment spectrum of the nitrate anion (NO3−) based on an artificial neural network diabatic potential model

Alexandra Viel , David M. G. Williams , Wolfgang Eisfeld

The Journal of Chemical Physics, 2021, 154 (8), pp.084302. ⟨10.1063/5.0039503⟩

Article dans une revue hal-03149863v1
Deposit thumbnail

Subpercent agreement between ab initio and experimental collision-induced line shapes of carbon monoxide perturbed by argon

Grzegorz Kowzan , Hubert Cybulski , Piotr Wcisło , Michał Słowiński , Alexandra Viel et al.

Physical Review A, 2020, 102 (1), pp.012821. ⟨10.1103/PhysRevA.102.012821⟩

Article dans une revue hal-02908662v1
Deposit thumbnail

Fully quantum calculations of the line-shape parameters for the Hartmann-Tran profile: a CO-Ar case study

Grzegorz Kowzan , Piotr Wcisło , Michał Słowiński , Piotr Masłowski , Alexandra Viel et al.

Journal of Quantitative Spectroscopy and Radiative Transfer, 2020, 243, pp.106803-1-13. ⟨10.1016/j.jqsrt.2019.106803⟩

Article dans une revue hal-02415292v2
Deposit thumbnail

Quantum dynamics and geometric phase in E ⊗ e Jahn-Teller systems with general Cnv symmetry

Thomas Weike , David M. G. Williams , Alexandra Viel , Wolfgang Eisfeld

The Journal of Chemical Physics, 2019, 151 (7), pp.074302. ⟨10.1063/1.5115396⟩

Article dans une revue hal-02267828v1
Deposit thumbnail

Diabatic neural network potentials for accurate vibronic quantum dynamics -The test case of planar NO3

David M. G. Williams , Wolfgang Eisfeld , Alexandra Viel

The Journal of Chemical Physics, 2019, 151 (16), pp.164118. ⟨10.1063/1.5125851⟩

Article dans une revue hal-02317939v1
Deposit thumbnail

Large amplitude motion within acetylene–rare gas complexes hosted in helium droplets

Marc Briant , Alexandra Viel , Ephriem Mengesha , Marc-André Gaveau , Benoît Soep et al.

Physical Chemistry Chemical Physics, 2019, 21 (3), pp.1038-1045. ⟨10.1039/C8CP04609C⟩

Article dans une revue hal-02443742v1
Deposit thumbnail

NO3 full-dimensional potential energy surfaces and ground state vibrational levels revisited

Alexandra Viel , Wolfgang Eisfeld

Chemical Physics, 2018, 509, pp.81-90. ⟨10.1016/j.chemphys.2018.01.003⟩

Article dans une revue hal-01725478v1
Deposit thumbnail

Vibronic eigenstates and the geometric phase effect in the 2 E″ state of NO 3

Wolfgang Eisfeld , Alexandra Viel

The Journal of Chemical Physics, 2017, 146 (3), pp.034303. ⟨10.1063/1.4973983⟩

Article dans une revue hal-01438322v1
Deposit thumbnail

Application of the spectral element method to the solution of the multichannel Schroedinger equation

Andrea Simoni , Alexandra Viel , Jean-Michel Launay

The Journal of Chemical Physics, 2017, 146 (24), pp.244106-1-9. ⟨10.1063/1.4987026⟩

Article dans une revue hal-01551686v1
Deposit thumbnail

Feshbach resonances and weakly bound molecular states of boson-boson and boson-fermion NaK pairs

Alexandra Viel , Andrea Simoni

Physical Review A : Atomic, molecular, and optical physics [1990-2015], 2016, 93 (4), pp.042701. ⟨10.1103/PhysRevA.93.042701⟩

Article dans une revue hal-01298490v1
Deposit thumbnail

Low temperature rate coefficients for vibrational relaxation of 3Σ+u Rb2 molecules by 3He and 4He atoms

Alexandra Viel , Jean-Michel Launay

Journal of Physical Chemistry A, 2014, 118 (33), pp.6529-6535. ⟨10.1021/jp503086b⟩

Article dans une revue hal-00988039v1
Deposit thumbnail

LiHe spectra from brown dwarfs to helium clusters

Nicole F. Allard , Akira Nakayama , Frank Stienkemeier , John F. Kielkopf , Grégoire Guillon et al.

Advances in Space Research, 2014, 54, pp.1290-1296. ⟨10.1016/j.asr.2013.08.032⟩

Article dans une revue hal-00876511v1
Deposit thumbnail

Full-dimensional diabatic potential energy surfaces including dissociation: The 2E″ state of NO3

Wolfgang Eisfeld , Olivier Vieuxmaire , Alexandra Viel

The Journal of Chemical Physics, 2014, 140, pp.224109. ⟨10.1063/1.4879655⟩

Article dans une revue hal-01015469v1
Deposit thumbnail

Full dimension Rb2He ground triplet potential energy surface and quantum scattering calculations

Grégoire Guillon , Alexandra Viel , Jean-Michel Launay

The Journal of Chemical Physics, 2012, 136 (17), pp.174307. ⟨10.1063/1.4709433⟩

Article dans une revue hal-00909240v1
Deposit thumbnail

Excited Li and Na in He(n): influence of the dimer potential energy curves.

David Dell'Angelo , Grégoire Guillon , Alexandra Viel

The Journal of Chemical Physics, 2012, 136 (11), pp.114308. ⟨10.1063/1.3693766⟩

Article dans une revue hal-00909448v1
Deposit thumbnail

Theoretical study of Rb2 in He(N): potential energy surface and Monte Carlo simulations.

Grégoire Guillon , Alexandre Zanchet , Markku Leino , Alexandra Viel , Robert E Zillich

Journal of Physical Chemistry A, 2011, 115 (25), pp.6918-6926. ⟨10.1021/jp112053b⟩

Article dans une revue hal-00700162v1
Deposit thumbnail

Electronically excited rubidium atom in helium clusters and films. II. Second excited state and absorption spectrum

Markku Leino , Alexandra Viel , Robert E. Zillich

The Journal of Chemical Physics, 2011, 134 (2), pp.024316. ⟨10.1063/1.3528936⟩

Article dans une revue hal-00711625v1
Deposit thumbnail

Multiconfigurational time-dependent Hartree calculations for tunneling splittings of vibrational states: Theoretical considerations and application to malonaldehyde

Thorsten Hammer , Maurício D. Coutinho-Neto , Alexandra Viel , Uwe Manthe

The Journal of Chemical Physics, 2009, 131 (22), pp.4109-1-13. ⟨10.1063/1.3272610⟩

Article dans une revue hal-00667038v1
Deposit thumbnail

Linewidths of C2H2 perturbed by H2: experiments and calculations from an ab initio potential

Franck Thibault , Benoît Corretja , Alexandra Viel , Dionisio Bermejo , Raúl Z. Martínez et al.

Physical Chemistry Chemical Physics, 2008, 10 (35), pp.5419-5428. ⟨10.1039/b804306j⟩

Article dans une revue hal-01118793v1
Deposit thumbnail

Electronically excited rubidium atom in a helium cluster or film.

Markku Leino , Alexandra Viel , Robert E. Zillich

The Journal of Chemical Physics, 2008, 129 (18), pp.184308. ⟨10.1063/1.3009279⟩

Article dans une revue hal-00675262v1
Deposit thumbnail

Photoionization-induced dynamics of the ammonia cation studied by wave packet calculations using curvilinear coordinates

Alexandra Viel , Wolfgang Eisfeld , Christian R. Evenhuis , Uwe Manthe

Chemical Physics, 2008, 347 (1-3), pp.331-339. ⟨10.1016/j.chemphys.2007.10.001⟩

Article dans une revue hal-01118801v1
Deposit thumbnail

Blueshift and intramolecular tunneling of NH[sub 3] umbrella mode in [sup 4]He[sub n] clusters

Alexandra Viel , K. Birgitta Whaley , Richard J. Wheatley

The Journal of Chemical Physics, 2007, 127 (19), pp.194303-1-15. ⟨10.1063/1.2787004⟩

Article dans une revue hal-00908202v1
Deposit thumbnail

The ground state tunneling splitting and the zero point energy of malonaldehyde: A quantum Monte Carlo determination

Alexandra Viel , Maurício D. Coutinho-Neto , Uwe Manthe

The Journal of Chemical Physics, 2007, 126 (2), pp.024308. ⟨10.1063/1.2406074⟩

Article dans une revue hal-00908276v1
Deposit thumbnail

Photoionization-induced dynamics of ammonia: Ab initio potential energy surfaces and time-dependent wave packet calculations for the ammonia cation

Alexandra Viel , Wolfgang Eisfeld , Stefanie Neumann , Wolfgang Domcke , Uwe Manthe

The Journal of Chemical Physics, 2006, 124 (21), pp.214306. ⟨10.1063/1.2202316⟩

Article dans une revue hal-01118375v1
Deposit thumbnail

Fragmentation dynamics of ionized neon clusters (Ne[sub n],n=3–14) embedded in helium nanodroplets

David Bonhommeau , Nadine Halberstadt , Alexandra Viel

The Journal of Chemical Physics, 2006, 124 (2), pp.024328. ⟨10.1063/1.2158993⟩

Article dans une revue hal-01118372v1
Deposit thumbnail

Fragmentation dynamics of argon clusters (Ar[sub n], n=2 to 11) following electron-impact ionization: Modeling and comparison with experiment

David Bonhommeau , Nadine Halberstadt , Alexandra Viel

The Journal of Chemical Physics, 2006, 124 (18), pp.184314. ⟨10.1063/1.2194552⟩

Article dans une revue hal-01118374v1
Deposit thumbnail

Modelization of the fragmentation dynamics of krypton clusters (Kr[sub n],n=2–11) following electron impact ionization

David Bonhommeau , Thomas Bouissou , Nadine Halberstadt , Alexandra Viel

The Journal of Chemical Physics, 2006, 124 (16), pp.164308. ⟨10.1063/1.2186645⟩

Article dans une revue hal-01118373v1
Deposit thumbnail

Dissociative ionization of neon clusters Ne[sub n], n=3 to 14: A realistic multisurface dynamical study

David Bonhommeau , Alexandra Viel , Nadine Halberstadt

The Journal of Chemical Physics, 2005, 123 (5), pp.054316. ⟨10.1063/1.1953530⟩

Article dans une revue hal-01118371v1
Deposit thumbnail

Higher order (A+E)⊗e pseudo-Jahn–Teller coupling

Wolfgang Eisfeld , Alexandra Viel

The Journal of Chemical Physics, 2005, 122 (20), pp.204317. ⟨10.1063/1.1904594⟩

Article dans une revue hal-01118370v1
Deposit thumbnail

Fragmentation dynamics of ionized neon trimer inside helium nanodroplets: A theoretical study

David Bonhommeau , Alexandra Viel , Nadine Halberstadt

The Journal of Chemical Physics, 2004, 120 (24), pp.11359-11362. ⟨10.1063/1.1763567⟩

Article dans une revue hal-01118368v1
Deposit thumbnail

Effects of higher order Jahn-Teller coupling on the nuclear dynamics

Alexandra Viel , Wolfgang Eisfeld

The Journal of Chemical Physics, 2004, 120 (10), pp.4603-4613. ⟨10.1063/1.1646371⟩

Article dans une revue hal-01118365v1
Deposit thumbnail

The ground state tunneling splitting of malonaldehyde: Accurate full dimensional quantum dynamics calculations

Maurício D. Coutinho-Neto , Alexandra Viel , Uwe Manthe

The Journal of Chemical Physics, 2004, 121 (19), pp.9207-9210. ⟨10.1063/1.1814356⟩

Article dans une revue hal-01118369v1
Deposit thumbnail

Photoinduced dynamics of ethene in the N, V, and Z valence states: A six-dimensional nonadiabatic quantum dynamics investigation

Alexandra Viel , Robert P. Krawczyk , Uwe Manthe , Wolfgang Domcke

The Journal of Chemical Physics, 2004, 120 (23), pp.11000-11010. ⟨10.1063/1.1740696⟩

Article dans une revue hal-01118367v1
Deposit thumbnail

Transition from Molecular Complex to Quantum Solvation in 4HeNOCS

Francesco Paesani , Alexandra Viel , Franco Gianturco , K. Birgitta Whaley

Physical Review Letters, 2003, 90 (7), pp.073401. ⟨10.1103/PhysRevLett.90.073401⟩

Article dans une revue hal-01118305v1
Deposit thumbnail

Effects of molecular rotation on densities in doped [sup 4]He clusters

Mehul V. Patel , Alexandra Viel , Francesco Paesani , Patrick Huang , K. Birgitta Whaley

The Journal of Chemical Physics, 2003, 118 (11), pp.5011-5027. ⟨10.1063/1.1545106⟩

Article dans une revue hal-01118297v1
Deposit thumbnail

The Sudden-Polarization Effect and its Role in the Ultrafast Photochemistry of Ethene

Alexandra Viel , Robert P. Krawczyk , Uwe Manthe , Wolfgang Domcke

Angewandte Chemie International Edition, 2003, 42 (29), pp.3434-3436. ⟨10.1002/anie.200351193⟩

Article dans une revue istex hal-01118363v1
Deposit thumbnail

Structure and spectroscopy of doped helium clusters using quantum Monte Carlo techniques

Alexandra Viel , K. Birgitta Whaley

International Journal of Modern Physics B, 2003, 17 (28), pp.5267-5277. ⟨10.1142/S0217979203020405⟩

Article dans une revue hal-01118364v1
Deposit thumbnail

Photoinduced dynamics of the valence states of ethene: A six-dimensional potential-energy surface of three electronic states with several conical intersections

Robert P. Krawczyk , Alexandra Viel , Uwe Manthe , Wolfgang Domcke

The Journal of Chemical Physics, 2003, 119 (3), pp.1397-1411. ⟨10.1063/1.1580092⟩

Article dans une revue hal-01118362v1
Deposit thumbnail

Theoretical study of the unusual potential energy curve of the A [sup 1]Σ[sup +] state of AgH

Henryk A. Witek , Dmitri G. Fedorov , Kimihiko Hirao , Alexandra Viel , Per-Olof Widmark

The Journal of Chemical Physics, 2002, 116 (19), pp.8396-8406. ⟨10.1063/1.1465403⟩

Article dans une revue hal-01118248v1
Deposit thumbnail

Importance sampling in rigid body diffusion Monte Carlo

Alexandra Viel , Mehul V. Patel , Parhat Niyaz , K.Birgitta Whaley

Computer Physics Communications, 2002, 145 (1), pp.24-47. ⟨10.1016/S0010-4655(02)00145-5⟩

Article dans une revue hal-01118243v1
Deposit thumbnail

Quantum structure and rotational dynamics of HCN in helium clusters

Alexandra Viel , K. Birgitta Whaley

The Journal of Chemical Physics, 2001, 115 (22), pp.10186-10198. ⟨10.1063/1.1407270⟩

Article dans une revue hal-01118230v1
Deposit thumbnail

The Jacobi–Wilson method: A new approach to the description of polyatomic molecules

Claude Leforestier , Alexandra Viel , Fabien Gatti , Claudio Muñoz , Christophe Iung

The Journal of Chemical Physics, 2001, 114 (5), pp.2099-2105. ⟨10.1063/1.1337048⟩

Article dans une revue hal-01118225v1
Deposit thumbnail

Six-dimensional calculation of the vibrational spectrum of the HFCO molecule

Alexandra Viel , Claude Leforestier

The Journal of Chemical Physics, 2000, 112 (3), pp.1212-1220. ⟨10.1063/1.480674⟩

Article dans une revue hal-01117857v1
Deposit thumbnail

Parallel implementation of a pseudo-spectral calculation of molecular energy levels: Application to the water dimer (H O)

Philip Eggert , Alexandra Viel , Claude Leforestier

Computer Physics Communications, 2000, 128 (1-2), pp.315-325. ⟨10.1016/S0010-4655(99)00518-4⟩

Article dans une revue istex hal-01117858v1
Deposit thumbnail

Vector parametrization of the N-atom problem in quantum mechanics with non-orthogonal coordinates

Christophe Iung , Fabien Gatti , Alexandra Viel , Xavier Chapuisat

Physical Chemistry Chemical Physics, 1999, 1 (15), pp.3377-3385. ⟨10.1039/a903466h⟩

Article dans une revue istex hal-01117507v1
Deposit thumbnail

Quantum mechanical calculation of the rate constant for the reaction H+O[sub 2]→OH+O

Alexandra Viel , Claude Leforestier , William H. Miller

The Journal of Chemical Physics, 1998, 108 (9), pp.3489-3497. ⟨10.1063/1.475776⟩

Article dans une revue hal-01117492v1
Deposit thumbnail

A quantum study of argon induced line mixing in ammonia doublets

Franck Thibault , Alexandra Viel , Christian Boulet

25th International Conference on Spectral Line Shapes, Journal of Physics: Conference Series, 2439 (1), pp.012008, 2023, ⟨10.1088/1742-6596/2439/1/012008⟩

Proceedings/Recueil des communications hal-03996763v1
Deposit thumbnail

Temperature dependence of sodium and ionized calcium resonance lines perturbed by helium

Nicole F. Allard , Derek Homeier , Grégoire Guillon , Alexandra Viel , John Kielkopf

XXII International Conference on Spectral Line Shapes 2014, 548, pp.012006, 2014, the proceedings of the XXII International Conference on Spectral Line Shapes (ICSLS 2014)., ⟨10.1088/1742-6596/548/1/012006⟩

Proceedings/Recueil des communications hal-01088957v1
Deposit thumbnail

Multi Dimensional Quantum Dynamics

Maurício D. Coutinho-Neto , Alexandra Viel , Uwe Manthe

High performance computing in science and engineering, Munich 2004 : Transactions of the Second Joint HLRB and KONWIHR Status and Result Workshop, 2004, The Proceedings of the Second Joint HLRB and KONWIHR Result and Reviewing Workshop

Proceedings/Recueil des communications hal-01118859v1
Deposit thumbnail

Structure and spectroscopy of doped helium clusters using Monte Carlo techniques

Alexandra Viel , K. Birgitta Whaley

The Proceedings of the 11th International Conference on Recent Progress in Many-Body Theories, 6, pp.293-302, 2002, Advances in Quantum Many-Body Theory

Proceedings/Recueil des communications hal-01119877v1
Deposit thumbnail

Efficient implementation of the projection Operator Imaginary Time Spectral Evolution (POITSE) method for excited state

Patrick Huang , Alexandra Viel , K. Birgitta Whaley

The Proceedings of the 11th International Conference on Recent Progress in Many-Body Theories, 6, pp.293-302, 2002, Advances in Quantum Many-Body Theory

Proceedings/Recueil des communications hal-01118853v1
Deposit thumbnail

Adiabatic Contraction of Molecular Bases

Alexandra Viel , Claude Leforestier

Rovibrational Bound States in Polyatomic Molecules, 1999, Rovibrational Bound States in Polyatomic Molecules, 9780952273667

Proceedings/Recueil des communications hal-01118848v1