MANY-BODY PHYSICS AND SPONTANEOUS SYMMETRY BREAKING

2006 ◽  
Vol 20 (19) ◽  
pp. 2579-2590 ◽  
Author(s):  
SPARTAK T. BELYAEV
Keyword(s):  
Symmetry Breaking ◽  
Density Matrix ◽  
Spontaneous Symmetry Breaking ◽  
Nuclear Structure ◽  
Bose Gas ◽  
Personal Perspective ◽  
Many Body ◽  
New Approach ◽  
Many Body Physics

The idea of spontaneous symmetry breaking in many-body physics from personal perspective (Bose-gas, nuclear structure and a new approach of Generalized Density Matrix).

METHOD OF THERMODYNAMIC QUASIAVERAGES

1991 ◽  
Vol 05 (20) ◽  
pp. 3235-3253 ◽  
Author(s):  
V.I. YUKALOV
Keyword(s):  
Symmetry Breaking ◽  
Spontaneous Symmetry Breaking ◽  
Thermodynamic Limit ◽  
New Method ◽  
Many Body ◽  
Mixed States ◽  
External Sources ◽  
Pure States ◽  
Many Body Systems ◽  
General Conditions

A new method is developed to define pure states for many-body systems with spontaneous symmetry breaking. The advantage of the method is in the use of solely the standard thermodynamic limit, as compared to the Bogolubov method of infinitesimal external sources which invokes two limiting procedures: the standard thermodynamic limit and the elimination of external sources. The general conditions for obtaining pure states are formulated. When these conditions do not hold mixed states appear. The method is illustrated by calculations for two simple models.

QUANTUM STATE AND SPONTANEOUS SYMMETRY BREAKING IN GRAVITY

1994 ◽  
Vol 03 (01) ◽  
pp. 191-194
Author(s):  
PEDRO F. GONZALEZ-DIAZ
Keyword(s):  
Quantum Gravity ◽  
Symmetry Breaking ◽  
Density Matrix ◽  
Spontaneous Symmetry Breaking ◽  
Quantum State ◽  
Positive Definite ◽  
General Quantum ◽  
Breaking Mechanism ◽  
Euclidean Wormholes

A spontaneous symmetry breaking mechanism is used in quantum gravity to obtain a convergent positive definite density-matrix as the most general quantum state of Euclidean wormholes.

scholarly journals Critical dynamics of spontaneous symmetry breaking in a homogeneous Bose gas

Science ◽  
2015 ◽  
Vol 347 (6218) ◽  
pp. 167-170 ◽  
Author(s):  
N. Navon ◽  
A. L. Gaunt ◽  
R. P. Smith ◽  
Z. Hadzibabic
Keyword(s):  
Symmetry Breaking ◽  
Spontaneous Symmetry Breaking ◽  
Bose Gas ◽  
Critical Dynamics

scholarly journals Many-body physics in the classical-field description of a degenerate Bose gas

2011 ◽  
Vol 84 (2) ◽  
Author(s):  
T. M. Wright ◽  
N. P. Proukakis ◽  
M. J. Davis
Keyword(s):  
Bose Gas ◽  
Classical Field ◽  
Many Body ◽  
Many Body Physics

scholarly journals Many-body Majorana-like zero modes without gauge symmetry breaking

2021 ◽  
Vol 3 (2) ◽  
Author(s):  
V. Vadimov ◽  
T. Hyart ◽  
J. L. Lado ◽  
M. Möttönen ◽  
T. Ala-Nissila
Keyword(s):  
Gauge Symmetry ◽  
Symmetry Breaking ◽  
Many Body ◽  
Zero Modes
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