scholarly journals Spin, charge, and single-particle spectral functions of the one-dimensional quarter filled Holstein model

2008 ◽  
Vol 78 (15) ◽  
Author(s):  
F. F. Assaad
Keyword(s):  
Single Particle ◽  
Spectral Functions ◽  
One Dimensional ◽  
Holstein Model ◽  
The One

scholarly journals Single-particle excitations and phonon softening in the one-dimensional spinless Holstein model

2005 ◽  
Vol 71 (4) ◽  
Author(s):  
S. Sykora ◽  
A. Hübsch ◽  
K. W. Becker ◽  
G. Wellein ◽  
H. Fehske
Keyword(s):  
Single Particle ◽  
Phonon Softening ◽  
One Dimensional ◽  
Holstein Model ◽  
The One

Study of the one-dimensional Holstein model with next-nearest-neighbor hopping

2010 ◽  
Vol 23 (2) ◽  
pp. 025601 ◽  
Author(s):  
Monodeep Chakraborty ◽  
A N Das ◽  
Atisdipankar Chakrabarti
Keyword(s):  
Nearest Neighbor ◽  
One Dimensional ◽  
Holstein Model ◽  
The One

scholarly journals Charge-density-wave melting in the one-dimensional Holstein model

2020 ◽  
Vol 101 (3) ◽  
Author(s):  
Jan Stolpp ◽  
Jacek Herbrych ◽  
Florian Dorfner ◽  
Elbio Dagotto ◽  
Fabian Heidrich-Meisner
Keyword(s):  
Charge Density ◽  
Charge Density Wave ◽  
Density Wave ◽  
One Dimensional ◽  
Holstein Model ◽  
The One

On Bose-Einstein condensation in one-dimensional lattices of delta functions

2020 ◽  
Vol 35 (03) ◽  
pp. 2040005 ◽  
Author(s):  
M. Bordag
Keyword(s):  
Dimensional Case ◽  
Einstein Condensation ◽  
Periodic Lattice ◽  
Spectral Functions ◽  
One Dimensional ◽  
Bose Einstein Condensation ◽  
Free Case ◽  
Delta Functions ◽  
The One ◽  
Bose Einstein

We investigate Bose-Einstein condensation of a gas of non-interacting Bose particles moving in the background of a periodic lattice of delta functions. In the one-dimensional case, where one has no condensation in the free case, we showed that this property persist also in the presence of the lattice. In addition we formulated some conditions on the spectral functions which would allow for condensation.

EXACT WAVEFUNCTION OF THE ONE-DIMENSIONAL DOUBLE-EXCHANGE MODEL WITH ONE ELECTRON

2012 ◽  
Vol 26 (30) ◽  
pp. 1250154 ◽  
Author(s):  
KYOHEI NAKANO ◽  
ROBERT EDER ◽  
YUKINORI OHTA
Keyword(s):  
Single Particle ◽  
Double Exchange ◽  
Exchange Interactions ◽  
Exchange Model ◽  
Particle Spectrum ◽  
Lower Edge ◽  
One Dimensional ◽  
Mobile Electron ◽  
Spin Excitations ◽  
The One

We study the one-dimensional double-exchange model with L localized spins and one mobile electron. We solve the Schrödinger equation analytically and obtain the energies and wavefunctions for all the eigenstates with spin S = (l-1)/2 exactly. As an application, we compute the single-particle Green's function. We show that, for vanishing exchange interactions between localized spins, the single-particle spectrum is entirely incoherent and the lowest band has an infinite band mass, i.e., the single electron is localized due to its interaction with the spin excitations. For nonvanishing exchange interactions between localized spins, the lower edge of the spectrum acquires a dispersion but the spectrum remains incoherent with no well-defined quasiparticle peak.

scholarly journals Phase Diagram of the One-Dimensional Holstein Model of Spinless Fermions

1998 ◽  
Vol 80 (25) ◽  
pp. 5607-5610 ◽  
Author(s):  
Robert J. Bursill ◽  
Ross H. McKenzie ◽  
Chris J. Hamer
Keyword(s):  
Phase Diagram ◽  
One Dimensional ◽  
Holstein Model ◽  
The One
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