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quant-ph2025
Approximating Hamiltonian for Hartree-Fock solutions for nonrelativistic atoms
N. Q. San, O. D. Skoromnik, V. V. Triguk +1
In our work we construct a Hamiltonian, whose eigenstates approximate the solutions of the self-consistent Hartree-Fock equations for nonrelativistic atoms and ions. Its eigenvalue…
quant-ph2024
Ground state of the gauge invariant Dicke model: condensation of the photons in non-classical states
N. Q. San, O. D. Skoromnik, A. P. Ulyanenkov +2
We investigate the ground state of two physically motivated modifications of the Dicke model. The first modification corresponds to particles whose phase space contains only two st…