scholarly journals Probing the QCD vacuum with an Abelian chromomagnetic field: A study within an effective model

2009 ◽  
Vol 80 (3) ◽  
Author(s):  
L. Campanelli ◽  
M. Ruggieri
Keyword(s):  
Effective Model ◽  
Qcd Vacuum ◽  
Chromomagnetic Field

scholarly journals Bag formation from gauge condensate

2015 ◽  
Vol 30 (02) ◽  
pp. 1550009
Author(s):  
Mahary Vasihoun ◽  
Eduardo Guendelman
Keyword(s):  
Field Strength ◽  
Boundary Conditions ◽  
Effective Action ◽  
Degrees Of Freedom ◽  
Gauge Fields ◽  
Radiative Corrections ◽  
Expectation Value ◽  
Qcd Vacuum ◽  
Chromomagnetic Field ◽  
Confinement Phase

As it is well known, one can lower the energy of the trivial perturbation QCD vacuum by introducing a nonvanishing chromomagnetic field strength. This happens because radiative corrections produce an effective action of the form [Formula: see text] with f′(y0) = 0 for some y0≠0. However, a vacuum with a nonzero field strength is not consistent with Poincaré Invariance (PI). Generalizing this type of effective action by introducing, in the simplest way, a four-index field strength ∂[μAναβ], which can have an expectation value without violating PI, we are lead to an effective action that can describe both a confinement phase and a perturbative phase of the theory. In the unconfined phase, the four-index field strength does not introduce new degrees of freedom, while in the confined phase both four-index field strength and ordinary gauge fields are not true degrees of freedom. The matching of these phases through membranes that couple minimally to the three-index potentials from which the four-index field strength derive, leads automatically to the MIT bag boundary conditions for the gauge fields living inside the bubble containing the perturbative phase.

An Effective Model of the Overshooting Effect for Multiple-Input Gates in Nanometer Technologies

2014 ◽  
Vol E97.A (5) ◽  
pp. 1059-1074
Author(s):  
Li DING ◽  
Zhangcai HUANG ◽  
Atsushi KUROKAWA ◽  
Jing WANG ◽  
Yasuaki INOUE
Keyword(s):  
Effective Model ◽  
Multiple Input

Effective Model for Real Time End to End Secure Communication Over GSM Voice Channel

2021 ◽  
Author(s):  
Mobeen Ur Rehman ◽  
Muhammad Adnan ◽  
Mouazma Batool ◽  
Liaqat Ali Khan ◽  
Ammar Masood
Keyword(s):  
Real Time ◽  
Secure Communication ◽  
Effective Model ◽  
End To End

scholarly journals 137 Early findings of ward to clinic based TWOC model in post TURP patients. A possible effective model in COVID era

2020 ◽  
Author(s):  
John Buyungo ◽  
Mohammed Kamil Quraishi ◽  
Natasha Ewen ◽  
Steve Garnett
Keyword(s):  
Effective Model

A RELATIVISTIC EFFECTIVE MODEL WITH PARAMETERIZED COUPLINGS FOR NEUTRON STARS: THE ROLE OF ANTIKAON CONDENSATES

2011 ◽  
Vol 20 (supp02) ◽  
pp. 133-139
Author(s):  
ALEXANDRE MESQUITA ◽  
MOISÉS RAZEIRA ◽  
DIMITER HADJIMICHEF ◽  
CÉSAR A. Z. VASCONCELLOS ◽  
ROSANA O. GOMES ◽  
...  
Keyword(s):  
Neutron Stars ◽  
Coupling Constants ◽  
Effective Model ◽  
Extended Model ◽  
Many Body ◽  
Parametric Dependence ◽  
Interaction Terms ◽  
Coupling Terms ◽  
Effective Models

We study the effects of antikaon condensates in neutron stars in the framework of a relativistic effective model with derivative couplings which includes genuine many-body forces simulated by nonlinear interaction terms involving scalar-isoscalar (σ, σ*), vector-isoscalar (ω, ɸ), vector-isovector (ϱ), scalar-isovector (δ) mesons. The effective model presented in this work has a philosophy quite similar to the original version of the model with parameterized couplings. But unlike that, in which the parametrization is directly inserted in the coupling constants of the Glendenning model, we present here a method for the derivation of the parametric dependence of the coupling terms, in a way that allows in one side to consistently justify this parametrization and in the other to extend in a coherent way the range of possibilities of parameterizations in effective models with derivative couplings. The extended model is then applied to the description of the mass of neutron stars.

Experimental verifications on an effective model for photonic coupling

2015 ◽  
Vol 40 (2) ◽  
pp. 272 ◽  
Author(s):  
Meng Qiu ◽  
Shiyi Xiao ◽  
Qiong He ◽  
Shulin Sun ◽  
Lei Zhou
Keyword(s):  
Effective Model
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