Mapping a hard wall potential into a soft wall potential for helium diffraction from surfaces

1986 ◽  
Vol 84 (1) ◽  
pp. 434-439 ◽  
Author(s):  
Ralph M. Aten ◽  
Thomas Engel
Keyword(s):  
Hard Wall ◽  
Wall Potential ◽  
Soft Wall

scholarly journals Structure and spectrum of two-dimensional clusters confined in a hard wall potential

2004 ◽  
Vol 69 (3) ◽  
Author(s):  
Minghui Kong ◽  
B. Partoens ◽  
A. Matulis ◽  
F. M. Peeters
Keyword(s):  
Two Dimensional ◽  
Hard Wall ◽  
Wall Potential

scholarly journals Aharonov–Bohm effect for bound states in relativistic scalar particle systems in a spacetime with a spacelike dislocation

2018 ◽  
Vol 27 (02) ◽  
pp. 1850005 ◽  
Author(s):  
R. L. L. Vitória ◽  
K. Bakke
Keyword(s):  
Magnetic Field ◽  
Uniform Magnetic Field ◽  
Bound States ◽  
Topological Defect ◽  
Scalar Potential ◽  
Hard Wall ◽  
Wall Potential ◽  
Bohm Effect ◽  
Aharonov Bohm ◽  
Linear Scalar

We investigate the analog effect of the Aharonov–Bohm effect for bound states in two relativistic quantum systems in a spacetime with a spacelike dislocation. We assume that the topological defect has an internal magnetic flux. Then, we analyze the interaction of a charged particle with a uniform magnetic field in this topological defect spacetime, and thus, we extend this analysis to the confinement of a hard-wall potential and a linear scalar potential. Later, the interaction of the Klein–Gordon oscillator with a uniform magnetic field is analyzed. We first focus on the effects of torsion that stem from the spacetime with a spacelike dislocation and the geometric quantum phase. Then, we analyze the effects of torsion and the geometric quantum phase under the presence of a hard-wall potential and a linear scalar potential.

Application of hyperscaling violation in QCD

2014 ◽  
Vol 92 (4) ◽  
pp. 280-283 ◽  
Author(s):  
J. Sadeghi ◽  
B. Pourhassan ◽  
A. Asadi
Keyword(s):  
Form Factor ◽  
Hard Wall ◽  
Soft Wall ◽  
Wall Models ◽  
Hyperscaling Violation

In this paper we use a metric with hyperscaling violation and study form factor of QCD. We find the effects of hyperscaling violation on the form factor and obtain the dependence of the form factor on momentum numerically. Here by using the hyperscaling violation metric we do not need hard-wall and soft-wall models.

scholarly journals Thermodynamics of soft wall model of AdS/QCD in Einstein-Maxwell-Gauss-Bonnet Gravity

2020 ◽  
Author(s):  
Shobhit Sachan ◽  
Sanjay Siwach
Keyword(s):  
Black Hole ◽  
Transition Temperature ◽  
Chemical Potential ◽  
Space Time ◽  
Hard Wall ◽  
Wall Model ◽  
Bonnet Gravity ◽  
First Order ◽  
Soft Wall Model ◽  
Soft Wall

We investigate the thermodynamics of confinement/deconfinement transition in soft wall model of QCD with Gauss-Bonnet corrections using AdS/CFT correspondence. In bulk AdS space-time the transition is geometric and is known as Hawking-Page transition. The Hawking-Page transition between two geometries, namely charged AdS black hole and thermally charged AdS have been studied with Gauss-Bonnet corrections up-to first order. The Gauss-Bonnet coupling modifies the transition temperature of the system, but qualitative features remain unchanged. We obtain the curves between chemical potential and transition temperature for different values of Gauss-Bonnet couplings. We find that there exist a point in μ-T plane where lines with different value of Gauss-Bonnet coupling cross each other. This point may be the onset of the transition from first order to cross over behavior. The results are compared with that of the hard wall model.

scholarly journals DECONFINEMENT AND THERMODYNAMICS IN 5D HOLOGRAPHIC MODELS OF QCD

2008 ◽  
Vol 23 (40) ◽  
pp. 3349-3365 ◽  
Author(s):  
UMUT GÜRSOY
Keyword(s):  
Thermodynamic Properties ◽  
Finite Temperature ◽  
Hard Wall ◽  
Soft Wall ◽  
Holographic Qcd ◽  
Wall Models ◽  
Finite Temperature Qcd

We review 5D holographic approaches to finite temperature QCD. Thermodynamic properties of the "hard-wall" and the "soft-wall" models are derived. Various non-realistic features in these models are rectified by the setup of improved holographic QCD, that we review here.

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