Extended approximated Born-Oppenheimer equation. I. Theory M Baer, SH Lin, A Alijah, S Adhikari, GD Billing Physical Review A 62 (3), 032506, 2000 | 119 | 2000 |

Extended Born-Oppenheimer equation for a three-state system B Sarkar, S Adhikari The Journal of chemical physics 124 (7), 074101, 2006 | 98 | 2006 |

A time-dependent Fourier grid Hamiltonian method. Formulation and application to the multiphoton dissociation of a diatomic molecule in intense laser field S Adhikari, P Dutta, SP Bhattacharyya Chemical physics letters 199 (6), 574-579, 1992 | 80 | 1992 |

Extended approximated Born-Oppenheimer equation. II. Application S Adhikari, GD Billing, A Alijah, SH Lin, M Baer Physical Review A 62 (3), 32507-32507, 2000 | 78 | 2000 |

The conical intersection effects and adiabatic single-surface approximations on scattering processes: A time-dependent wave packet approach S Adhikari, GD Billing The Journal of chemical physics 111 (1), 40-47, 1999 | 75 | 1999 |

Dissociation dynamics of a model diatomic species in an intense pulsed laser field: a time dependent Fourier grid Hamiltonian approach S Adhikari, SP Bhattacharyya Physics Letters A 172 (3), 155-161, 1992 | 75 | 1992 |

A time-dependent discrete variable representation method S Adhikari, GD Billing The Journal of Chemical Physics 113 (4), 1409-1414, 2000 | 57 | 2000 |

The time-dependent discrete variable representation method in molecular dynamics GD Billing, S Adhikari Chemical Physics Letters 321 (3-4), 197-204, 2000 | 54 | 2000 |

Quantum-classical dynamics of scattering processes in adiabatic and diabatic representations P Puzari, B Sarkar, S Adhikari The Journal of chemical physics 121 (2), 707-721, 2004 | 50 | 2004 |

A quantum-classical approach to the molecular dynamics of pyrazine with a realistic model Hamiltonian P Puzari, B Sarkar, S Adhikari The Journal of chemical physics 125 (19), 194316, 2006 | 48 | 2006 |

Construction of diabatic Hamiltonian matrix from ab initio calculated molecular symmetry adapted nonadiabatic coupling terms and nuclear dynamics for the excited states of Na3 … S Mukherjee, S Bandyopadhyay, AK Paul, S Adhikari The Journal of Physical Chemistry A 117 (16), 3475-3495, 2013 | 47 | 2013 |

Beyond Born-Oppenheimer theory for *ab initio* constructed diabatic potential energy surfaces of singlet to study reaction dynamics using coupled 3D time …S Ghosh, S Mukherjee, B Mukherjee, S Mandal, R Sharma, P Chaudhury, ... The Journal of Chemical Physics 147 (7), 074105, 2017 | 44 | 2017 |

Curl Condition for a Four-State Born− Oppenheimer System Employing the Mathieu Equation B Sarkar, S Adhikari The Journal of Physical Chemistry A 112 (40), 9868-9885, 2008 | 43 | 2008 |

Conical intersections and diabatic potential energy surfaces for the three lowest electronic singlet states of S Mukherjee, D Mukhopadhyay, S Adhikari The Journal of Chemical Physics 141 (20), 204306, 2014 | 40 | 2014 |

Single surface beyond Born–Oppenheimer equation for a three-state model Hamiltonian of cluster A Kumar Paul, S Sardar, B Sarkar, S Adhikari The Journal of chemical physics 131 (12), 124312, 2009 | 38 | 2009 |

*Ab initio* calculations on the excited states of Na_{3} cluster to explore beyond Born-Oppenheimer theories: Adiabatic to diabatic potential energy surfaces and …AK Paul, S Ray, D Mukhopadhyay, S Adhikari The Journal of chemical physics 135 (3), 034107, 2011 | 37 | 2011 |

A quantum-classical approach to the photoabsorption spectrum of pyrazine P Puzari, RS Swathi, B Sarkar, S Adhikari The Journal of chemical physics 123 (13), 134317, 2005 | 37 | 2005 |

Time-dependent discrete variable representation method in a tunneling problem B Barkakaty, S Adhikari The Journal of chemical physics 118 (12), 5302-5318, 2003 | 37 | 2003 |

The coupled 3D wave packet approach for triatomic reactive scattering in hyperspherical coordinates S Adhikari, AJC Varandas Computer Physics Communications 184 (2), 270-283, 2013 | 35 | 2013 |

Fourier grid Hamiltonian method for bound states of multidimensional systems. Formulation and preliminary applications to model systems P Dutta, S Adhikari, SP Bhattacharyya Chemical physics letters 212 (6), 677-684, 1993 | 35 | 1993 |