Many-body forces in exactly solvable field-theoretical models

1975 ◽  
Vol 25 (3) ◽  
pp. 288-301 ◽  
Author(s):  
F. Calogero ◽  
D. De Santis
Keyword(s):  
Theoretical Models ◽  
Many Body ◽  
Body Forces ◽  
Exactly Solvable

scholarly journals Interaction between Different Kinds of Quantum Phase Transitions

2021 ◽  
Vol 3 (2) ◽  
pp. 253-261
Author(s):  
Angel Ricardo Plastino ◽  
Gustavo Luis Ferri ◽  
Angelo Plastino
Keyword(s):  
Phase Transitions ◽  
Nuclear Physics ◽  
Body Problem ◽  
Quantum Phase Transitions ◽  
Quantum Phase ◽  
Exactly Solvable Models ◽  
Solvable Models ◽  
Many Body ◽  
Pairing Interaction ◽  
Exactly Solvable

We employ two different Lipkin-like, exactly solvable models so as to display features of the competition between different fermion–fermion quantum interactions (at finite temperatures). One of our two interactions mimics the pairing interaction responsible for superconductivity. The other interaction is a monopole one that resembles the so-called quadrupole one, much used in nuclear physics as a residual interaction. The pairing versus monopole effects here observed afford for some interesting insights into the intricacies of the quantum many body problem, in particular with regards to so-called quantum phase transitions (strictly, level crossings).

Wigner SU(4)-symmetry restoration in heavy nuclei and the many-body forces problem

1982 ◽  
Vol 391 (1) ◽  
pp. 93-117 ◽  
Author(s):  
Yu.V. Gaponov ◽  
N.B. Shulgina ◽  
D.M. Vladimirov
Keyword(s):  
Heavy Nuclei ◽  
Many Body ◽  
Body Forces ◽  
The Many

AN EFFECTIVE THEORY FOR NUCLEAR MATTER WITH GENUINE MANY-BODY FORCES

2012 ◽  
Vol 18 ◽  
pp. 182-190 ◽  
Author(s):  
CÉSAR A. Z. VASCONCELLOS ◽  
JORGE HORVATH ◽  
DIMITER HADJIMICHEF ◽  
ROSANA O. GOMES
Keyword(s):  
Nuclear Matter ◽  
Dense Matter ◽  
New Physics ◽  
Theoretical Research ◽  
Effective Theory ◽  
Many Body ◽  
Conceptual Issue ◽  
Body Forces ◽  
Nuclear Systems ◽  
Space Dynamics

Nuclear science has developed many excellent descriptions that embody various properties of the nucleus, and nuclear matter at low, medium and high densities. However, a full microscopic understanding of nuclear systems is still lacking. The aim of our theoretical research group is to shed some light on such challenges and particularly on open questions facing the high density nuclear many-body problem. Here we focus our attention on the conceptual issue of naturalness and its role in shaping the baryon-meson phase space dynamics in the description of the equation of state (EoS) of nuclear matter. In particular, in order to stimulate possible new directions of research, we discuss relevant aspects of a recently developed relativistic effective theory for nuclear matter with natural parametric couplings and genuine many-body forces. Among other topics we discuss in this work the connection of this theory with other known effective QHD models of the literature and its potentiality in describing a new physics for dense matter.

Nature of Many-Body Forces in Water Clusters and Bulk

2003 ◽  
pp. 7-23 ◽  
Author(s):  
Krzysztof Szalewicz ◽  
Robert Bukowski ◽  
Bogumil Jeziorski
Keyword(s):  
Water Clusters ◽  
Many Body ◽  
Body Forces

Many-Body Forces and Nuclear Saturation

1953 ◽  
Vol 91 (6) ◽  
pp. 1527-1542 ◽  
Author(s):  
S. D. Drell ◽  
Kerson Huang
Keyword(s):  
Many Body ◽  
Body Forces

scholarly journals Many-body Forces in Magnetic Neutron Stars

2017 ◽  
Vol 850 (1) ◽  
pp. 20 ◽  
Author(s):  
R. O. Gomes ◽  
B. Franzon ◽  
V. Dexheimer ◽  
S. Schramm
Keyword(s):  
Neutron Stars ◽  
Many Body ◽  
Body Forces
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