scholarly journals Hilbert space and ground-state structure of bilayer quantum Hall systems at ν=2/λ

2017 ◽  
Vol 95 (23) ◽  
Author(s):  
M. Calixto ◽  
C. Peón-Nieto ◽  
E. Pérez-Romero
Keyword(s):  
Hilbert Space ◽  
Ground State ◽  
Quantum Hall ◽  
Ground State Structure ◽  
State Structure ◽  
Quantum Hall Systems ◽  
Bilayer Quantum Hall

scholarly journals Ground-state structure inν=2bilayer quantum Hall systems

2005 ◽  
Vol 71 (12) ◽  
Author(s):  
Z. F. Ezawa ◽  
M. Eliashvili ◽  
G. Tsitsishvili
Keyword(s):  
Ground State ◽  
Quantum Hall ◽  
Ground State Structure ◽  
State Structure ◽  
Quantum Hall Systems

scholarly journals Ground State of ν=1 Bilayer Quantum Hall Systems

2006 ◽  
Vol 75 (4) ◽  
pp. 043712 ◽  
Author(s):  
Naokazu Shibata ◽  
Daijiro Yoshioka
Keyword(s):  
Ground State ◽  
Quantum Hall ◽  
Quantum Hall Systems ◽  
Bilayer Quantum Hall

HARTREE–FOCK–BOGOLIUBOV STUDIES OF BILAYER ν = 2 QUANTUM HALL SYSTEMS

2005 ◽  
Vol 19 (11) ◽  
pp. 539-548 ◽  
Author(s):  
YUICHI SHIMODA ◽  
TATSUYA NAKAJIMA ◽  
ANJU SAWADA
Keyword(s):  
Ground State ◽  
Degrees Of Freedom ◽  
Rotational Symmetry ◽  
Quantum Hall ◽  
Excitation Spectra ◽  
Hartree Fock ◽  
Quantum Hall Systems ◽  
Spin Singlet ◽  
Spin Triplet ◽  
Bilayer Quantum Hall

Excitation spectra in bilayer quantum Hall systems at total Landau-level filling ν = 2 are studied by the Hartree–Fock–Bogoliubov (HFB) approximation. The systems have the spin degrees of freedom in addition to the layer degrees of freedom described in terms of pseudospin. On the excitation spectrum from the spin-singlet and pseudospin-polarized ground state, this approximation fully preserves the spin rotational symmetry and thus can give both spin-triplet and spin-singlet excitations systematically. It is also found that the ground state is pseudospin squeezed because of pseudospin correlations and that the HFB approximation can describe ground-state properties better than other approximations.

SPIN STRUCTURES IN INHOMOGENEOUS FRACTIONAL QUANTUM HALL SYSTEMS

2004 ◽  
Vol 18 (27n29) ◽  
pp. 3871-3874 ◽  
Author(s):  
KAREL VÝBORNÝ ◽  
DANIELA PFANNKUCHE
Keyword(s):  
Ground State ◽  
Quantum Hall ◽  
Exact Diagonalization ◽  
Fractional Quantum ◽  
Fractional Quantum Hall ◽  
Spin Structures ◽  
Quantum Hall Systems ◽  
Magnetic Inhomogeneities ◽  
Spin Singlet ◽  
Spin Polarized

Transitions between spin polarized and spin singlet incompressible ground state of quantum Hall systems at filling factor 2/3 are studied by means of exact diagonalization with eight electrons. We observe a stable exactly half–polarized state becoming the absolute ground state around the transition point. This might be a candidate for the anomaly observed during the transition in optical experiments. The state reacts strongly to magnetic inhomogeneities but it prefers stripe–like spin structures to formation of domains.

Electronic Absorption and Ground State Structure of Carotenoid Molecules

2013 ◽  
Vol 117 (38) ◽  
pp. 11015-11021 ◽  
Author(s):  
Maria M. Mendes-Pinto ◽  
Elodie Sansiaume ◽  
Hideki Hashimoto ◽  
Andrew A. Pascal ◽  
Andrew Gall ◽  
...  
Keyword(s):  
Electronic Absorption ◽  
Ground State ◽  
Ground State Structure ◽  
State Structure
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