Variational calculations with repulsive core potentials

1960 ◽  
Vol 18 ◽  
pp. 672-680 ◽  
Author(s):  
N. Austern ◽  
P. Iano
Keyword(s):  
Repulsive Core ◽  
Variational Calculations

Perturbative-variational calculations in two-well anharmonic oscillators

1990 ◽  
Vol 42 (9) ◽  
pp. 5073-5078 ◽  
Author(s):  
F. Arias de Saavedra ◽  
E. Buenda
Keyword(s):  
Anharmonic Oscillators ◽  
Variational Calculations

scholarly journals Identity of the universal repulsive-core singularity with Yang-Lee edge criticality

1999 ◽  
Vol 60 (6) ◽  
pp. 6323-6328 ◽  
Author(s):  
Youngah Park ◽  
Michael E. Fisher
Keyword(s):  
Repulsive Core

Variational calculations of rotationally resolved infrared properties of Li2Na+, LiNa2+ and KLiNa+

1992 ◽  
Vol 272 ◽  
pp. 73-93 ◽  
Author(s):  
Feng Wang ◽  
Debra J. Searles ◽  
Ellak I. von Nagy-Felsobuki
Keyword(s):  
Variational Calculations

scholarly journals An Explanation of N-N "Repulsive Core" in Terms of Forbidden States Based on the Quark Model

1977 ◽  
Vol 58 (3) ◽  
pp. 1072-1074 ◽  
Author(s):  
V. G. Neudatchin ◽  
Y. F. Smirnov ◽  
R. Tamagaki
Keyword(s):  
Quark Model ◽  
Repulsive Core ◽  
Forbidden States

Variational calculations of positron characteristics in metals

2011 ◽  
Vol 112 (6) ◽  
pp. 576-582
Author(s):  
P. V. Vakula ◽  
A. V. Babich ◽  
Yu. A. Kunitskii ◽  
V. V. Pogosov
Keyword(s):  
Variational Calculations

THE EFFECT OF THE RANGE OF THE POTENTIAL ON THE MULTI-STEP CLUSTER MELTING PROCESS

2004 ◽  
Vol 15 (05) ◽  
pp. 649-658 ◽  
Author(s):  
SHI-WEI REN
Keyword(s):  
Molecular Dynamics ◽  
Molecular Dynamics Simulation ◽  
Morse Potential ◽  
Melting Process ◽  
Dynamics Simulation ◽  
Repulsive Core ◽  
Tail Region ◽  
Step Process

By using the microcanonical molecular dynamics simulation, the melting processes of the clusters bound by Morse potential are investigated. It is found that these clusters show a multi-step melting process as long as the range of the Morse potential is a suitable value. The origins of this multi-step process are analyzed. I find that not only the repulsive core of the potential but also the attractive tail range of the potential influences the melting process. Moreover, the occurrence of the multi-step melting process is more sensitive to the tail region of the Morse potential.

scholarly journals Constrained variational calculations for finite nuclei

1978 ◽  
Vol 4 (11) ◽  
pp. 1709-1723 ◽  
Author(s):  
R F Bishop ◽  
C Howes ◽  
J M Irvine ◽  
M Modarres
Keyword(s):  
Variational Calculations ◽  
Finite Nuclei

scholarly journals Variational Solution of the Gross–Neveu Model: Finite N and Renormalization

1997 ◽  
Vol 12 (19) ◽  
pp. 3307-3334 ◽  
Author(s):  
C. Arvanitis ◽  
F. Geniet ◽  
M. Iacomi ◽  
J.-L. Kneur ◽  
A. Neveu
Keyword(s):  
Field Theory ◽  
Renormalization Group ◽  
General Framework ◽  
Free Field ◽  
Variational Calculation ◽  
Final Point ◽  
Variational Calculations ◽  
Perturbative Renormalization ◽  
Good Agreement ◽  
Gross Neveu Model

We show how to perform systematically improvable variational calculations in the O(2N) Gross–Neveu model for generic N, in such a way that all infinities usually plaguing such calculations are accounted for in a way compatible with the perturbative renormalization group. The final point is a general framework for the calculation of nonperturbative quantities like condensates, masses, etc., in an asymptotically free field theory. For the Gross–Neveu model, the numerical results obtained from a "two-loop" variational calculation are in a very good agreement with exact quantities down to low values of N.

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