3 papers
quant-ph2010
Maximally entangled states in the Hydrogen molecule: The role of spin and correlation
M. Babamoradi, M. Heidari Saani, M. A. Vesaghi
By going beyond Hubbard Hamiltonian we reflected correlation effects accurately in the wavefunctions of H2. Using ab initio e-e interaction parameters resulted maximally entangled…
cond-mat.mtrl-sci2003
Optical Transitions at the Neutral and Charged Vacancies in Diamond
Mehdi Heidari Saani, Mohammad Ali Vesaghi, Keivan Esfarjani
We used the exact eigenvectors of the generalized Hubbard Hamiltonian solution to predict the transition intensities of the well known and transitions at the neutral an…
cond-mat.mtrl-sci2002
Exact solutions of generalized Hubbard Hamiltonian for diamond vacancies
Mehdi Heidari Saani, Mohammad Ali Vesaghi, Keivan Esfarjani
A new formalism to calculate electronic states of vacancies in diamond has been developed using many-body techniques.This model is based on prevoius molecular models but does not u…