Properties of the Squeezed Polarons in One Dimension

1998 ◽  
Vol 12 (22) ◽  
pp. 2225-2232 ◽  
Author(s):  
Xiyu Su ◽  
Hang Zheng
Keyword(s):  
Binding Energy ◽  
Ground State ◽  
One Dimension ◽  
Electron Subsystem ◽  
Phonon Subsystem ◽  
Strongly Coupled ◽  
Ground State Properties

An electron related squeezed phonon transformation is employed to investigate the ground state properties of the strongly coupled electron–phonon system in one dimension. It has been shown that the binding energy of the polaron and the interaction between the polarons are renormalized together with the energy reducement of the electron subsystem resulted from the squeeze state of the phonon subsystem. Some relevance with the earlier variational treatments has been discussed as well.

scholarly journals GROUND STATE PROPERTIES AND BUBBLE STRUCTURE OF SYNTHESIZED SUPERHEAVY NUCLEI

2013 ◽  
Vol 22 (01) ◽  
pp. 1350001 ◽  
Author(s):  
S. K. SINGH ◽  
M. IKRAM ◽  
S. K. PATRA
Keyword(s):  
Binding Energy ◽  
Ground State ◽  
Deformation Parameter ◽  
Mean Field ◽  
Quadrupole Deformation ◽  
Superheavy Nuclei ◽  
Ground State Properties ◽  
Quadrupole Deformation Parameter ◽  
Bubble Structure ◽  
The Stability

We calculate the ground state properties of recently synthesized superheavy elements (SHEs) from Z = 105–118 along with the predicted proton magic Z = 120. The relativistic and nonrelativistic mean field formalisms are used to evaluate the binding energy (BE), charge radius, quadrupole deformation parameter and the density distribution of nucleons. We analyzed the stability of the nuclei based on BE and neutron to proton ratio. We also studied the bubble structure which reveals the special features of the superheavy nuclei.

Ground-state properties of a strongly coupled one-component plasma

1990 ◽  
Vol 41 (10) ◽  
pp. 5473-5477 ◽  
Author(s):  
S. Orozco ◽  
M. A. Ortíz ◽  
R. M. Méndez-Moreno
Keyword(s):  
Ground State ◽  
Strongly Coupled ◽  
Ground State Properties ◽  
Component Plasma

CHANGES IN THE PHYSICAL PROPERTIES OF NONADIABATICALLY COUPLED ELECTRON–PHONON SYSTEMS ARISING FROM SQUEEZING–ANTISQUEEZING EFFECT

2003 ◽  
Vol 17 (31n32) ◽  
pp. 6031-6056
Author(s):  
XIAO-FENG PANG
Keyword(s):  
Binding Energy ◽  
Physical Properties ◽  
Ground State ◽  
State Energy ◽  
Quantum Fluctuation ◽  
Density Wave ◽  
Tunneling Effect ◽  
Strongly Coupled ◽  
One Dimensional ◽  
Minimum Uncertainty

Changes in the physical properties such as the ground state properties, charge density wave ordering, binding energy and energy bandwidth of polaron and quantum fluctuation, and minimum uncertainty relation of phonons and nonadiabatically coupled electron–phonon systems with spin-1/2 have been investigated by our new state ansatz which can account for correlation among the phononic displacement, squeezing and polaron effects using variational method in one-dimensional Holstein model. The investigation here shows that the squeezing–antisqueezing effect (correlated) results in a decrease of the ground state energy, an increase of the binding energy of polarons, the reduction of the uncertainty and quantum fluctuation of the phonons, a decrease of polaron narrowing of electron bandwidth, an increase of tunneling effect of the polarons and an increase of CDW ordering and phonon staggered ordering when compared with the uncorrelated case. Therefore, this shows that the ground state determined by the new state ansatz is the most stable. The new ansatz which include the squeezing–antisqueezing (correlated) effect is very relevant for the coupled electron–phonon systems, especially in strongly coupled and highly squeezed cases.

Ground-State Properties of Superfluid Fermi Gas in Fourier-Synthesized Optical Lattices

2014 ◽  
Vol 31 (3) ◽  
pp. 030301 ◽  
Author(s):  
Yan Chen ◽  
Ke-Zhi Zhang ◽  
Xiao-Liang Wang ◽  
Yong Chen
Keyword(s):  
Ground State ◽  
Optical Lattices ◽  
Fermi Gas ◽  
Superfluid Fermi Gas ◽  
Ground State Properties ◽  
Superfluid Fermi
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