Effective hamiltonian theory: Recent formal results and non-nuclear applications

1981 ◽  
pp. 373-381
Author(s):  
B. H. Brandow
Keyword(s):  
Effective Hamiltonian ◽  
Hamiltonian Theory ◽  
Nuclear Applications

scholarly journals Self-consistent effective Hamiltonian theory for fermionic many-body systems

2020 ◽  
pp. 2150019
Author(s):  
Xindong Wang ◽  
Hai-Ping Cheng
Keyword(s):  
Hubbard Model ◽  
Order Parameter ◽  
Cooper Pair ◽  
Effective Hamiltonian ◽  
Two Dimensional ◽  
Body System ◽  
Many Body ◽  
Hamiltonian Theory ◽  
Self Consistent ◽  
Many Body Systems

Using a separable many-body variational wavefunction, we formulate a self-consistent effective Hamiltonian theory for fermionic many-body system. The theory is applied to the two-dimensional (2D) Hubbard model as an example to demonstrate its capability and computational effectiveness. Most remarkably for the Hubbard model in 2D, a highly unconventional quadruple-fermion non-Cooper pair order parameter is discovered.

scholarly journals Majorana Fermions in Self-Consistent Effective Hamiltonian Theory

2021 ◽  
Author(s):  
Xindong Wang
Keyword(s):  
Ground State ◽  
The Self ◽  
Majorana Fermion ◽  
Majorana Fermions ◽  
Effective Hamiltonian ◽  
Charged Fermion ◽  
Hamiltonian Theory ◽  
Self Consistent

Majorana fermion solution is obtained from the self-consistent effective Hamiltonian theory. The ground state is conjectured to be a non-empty vacuum with 2 fermions, one for each type. The first type is the original charged fermion and the second type the chiral charge-less Majorana fermion. The Marjorana fermion is like a shadow of the first fermion cast by the non-empty vacuum.

Application of effective hamiltonian theory to the method of diatomics-in-molecules

1988 ◽  
Vol 63 (1) ◽  
pp. 27-31 ◽  
Author(s):  
F.X. Gadea ◽  
P.J. Kuntz
Keyword(s):  
Effective Hamiltonian ◽  
Hamiltonian Theory
Sign in / Sign up

Export Citation Format

Share Document