47 citations · 326 across the 18 of their papers we have counts for
18 papers
Sum-of-products form of the molecular electronic Hamiltonian and application within the MCTDH method
Sudip Sasmal, Oriol Vendrell
We introduce two different approaches to represent the second-quantized electronic Hamiltonian in a sum-of-products form. These procedures aim at mitigating the quartic scaling of…
A bosonic perspective on the classical mapping of fermionic quantum dynamics
Jing Sun, Sudip Sasmal, Oriol Vendrell
We consider the application of the original Meyer-Miller (MM) Hamiltonian to mapping fermionic quantum dynamics to classical equations of motion. Non-interacting fermionic and boso…
Exploration of interlacing and avoided crossings in a manifold of potential energy curves by a Unitary Group Adapted State Specific Multi-Reference Perturbation Theory (UGA-SSMRPT)
Dibyajyoti Chakravarti, Koustav Hazra, Riya Kayal +2
The Unitary Group Adapted State-Specific Multi-Reference Perturbation Theory (UGA-SSMRPT2) developed by Mukherjee et al [J. Comput. Chem. 2015, 36, 670] has successfully realized t…
Non-adiabatic quantum dynamics without potential energy surfaces based on second-quantized electrons: application within the framework of the MCTDH method
Sudip Sasmal, Oriol Vendrell
A first principles quantum formalism to describe the non-adiabatic dynamics of electrons and nuclei based on a second quantization representation (SQR) of the electronic motion com…
Relativistic double-ionization equation-of-motion coupled-cluster method: Application to low-lying doubly ionized states
Himadri Pathak, Sudip Sasmal, Kaushik Talukdar +3
The article deals with the extension of the relativistic double-ionization equation-of-motion coupled-cluster (DI-EOMCC) method [H. Pathak et al. Phys. Rev. A 90, 010501(R) (2014)]…
Modeling D-Region Ionospheric Response of the Great American TSE of August 21, 2017 from VLF signal perturbation
Sandip K. Chakrabarti, Sudipta Sasmal, Tamal Basak +2
Solar eclipse is an unique opportunity to study the lower ionospheric variabilities under a controlled perturbation when the solar ultraviolet and X-ray are temporally occulted by…