STRANGE QUARK MATTER IN STRONG MAGNETIC FIELD

1994 ◽  
Vol 09 (39) ◽  
pp. 3611-3618 ◽  
Author(s):  
SOMENATH CHAKRABARTY ◽  
ASHOK GOYAL
Keyword(s):  
Magnetic Field ◽  
Strong Magnetic Field ◽  
Quark Matter ◽  
Strange Quark ◽  
Critical Value ◽  
Strange Quark Matter ◽  
Zero Magnetic Field ◽  
Zero Temperature ◽  
Mit Bag Model ◽  
The Stability

Using conventional MIT bag model of confinement, the stability of bulk strange quark matter (SQM) in the presence of a strong magnetic field at zero temperature and zero pressure has been investigated. The binding energy of SQM increases in the presence of strong magnetic field greater than or of the order of some critical value at which the cyclotron lines begin to occur. At finite temperature the pressure dependence of the system has also been presented, which differs significantly from zero magnetic field case.

scholarly journals MASS–RADIUS RELATION FOR MAGNETIZED STRANGE QUARKS STARS

2010 ◽  
Vol 19 (08n10) ◽  
pp. 1511-1519 ◽  
Author(s):  
A. P. MARTÍNEZ ◽  
R. G. FELIPE ◽  
D. M. PARET
Keyword(s):  
Magnetic Field ◽  
Quark Matter ◽  
Strange Quark ◽  
Baryon Density ◽  
Strange Quark Matter ◽  
Strange Quarks ◽  
Quark Stars ◽  
Mit Bag Model ◽  
The Stability ◽  
The Magnetic Field

We review the stability of magnetized strange quark matter (MSQM) within the phenomenological MIT bag model, taking into account the variation of the relevant input parameters, namely, the strange quark mass, baryon density, magnetic field and bag parameter. A comparison with magnetized asymmetric quark matter in β-equilibrium as well as with strange quark matter (SQM) is presented. We obtain that the energy per baryon for MSQM decreases as the magnetic field increases, and its minimum value at vanishing pressure is lower than the value found for SQM, which implies that MSQM is more stable than non-magnetized SQM. The mass–radius relation for magnetized strange quark stars is also obtained in this framework.

scholarly journals COMPACT STARS AND MAGNETIZED CFL MATTER

2011 ◽  
Vol 20 (supp02) ◽  
pp. 84-92 ◽  
Author(s):  
AURORA PÉREZ MARTíNEZ ◽  
RICARDO GONZÁLEZ FELIPE ◽  
DARYEL MANREZA PARET
Keyword(s):  
Magnetic Field ◽  
Neutron Stars ◽  
Ground State ◽  
Quark Matter ◽  
Strange Quark ◽  
Strange Quark Matter ◽  
Compact Stars ◽  
Mit Bag Model ◽  
The Stability ◽  
The Magnetic Field

The stability of the color flavor locked phase in the presence of a strong magnetic field is investigated within the phenomenological MIT bag model. It is found that the minimum value of the energy per baryon in a color flavor locked state at vanishing pressure is lower than the corresponding one for unpaired magnetized strange quark matter and, as the magnetic field increases, the energy per baryon decreases. This implies that magnetized color flavor locked matter is more stable and could become the ground state inside neutron stars. The anisotropy of the pressures is discussed. The mass-radius relation for such stars is also studied.

WEAKLY INTERACTING QUARK MATTER IN AN ULTRASTRONG MAGNETIC FIELD

1998 ◽  
Vol 13 (02) ◽  
pp. 295-314 ◽  
Author(s):  
SOMENATH CHAKRABARTY ◽  
DEBADES BANDYOPADHYAY ◽  
SUBRATA PAL
Keyword(s):  
Magnetic Field ◽  
Quark Matter ◽  
Strange Quark ◽  
Landau Theory ◽  
Exchange Interactions ◽  
Strange Quark Matter ◽  
Relativistic Version ◽  
Weakly Interacting ◽  
Vector Bosons ◽  
The Stability

A relativistic version of the Landau theory of Fermi liquid in the presence of an ultrastrong magnetic field is developed. The direct and exchange interactions via the exchanges of both the scalar and the vector bosons are considered. The model is applied to a system of weakly interacting strange quark matter to study the stability of the system.

MAGNETIC FIELD AND TEMPERATURE EFFECTS ON STRANGELETS

2011 ◽  
Vol 20 (supp02) ◽  
pp. 42-49
Author(s):  
ERNESTO LÓPEZ FUNE ◽  
AURORA PÉREZ MARTÍNEZ ◽  
DARYEL MANREZA PARET ◽  
RICARDO GONZÁLEZ FELIPE
Keyword(s):  
Magnetic Field ◽  
Electric Charge ◽  
Quark Matter ◽  
Temperature Effects ◽  
Strange Quark ◽  
Strange Quark Matter ◽  
Mit Bag Model ◽  
Phase Temperature ◽  
Matter Phase ◽  
The Magnetic Field

The main properties of magnetized strangelets, namely, their energy per baryon, radius and electric charge, are studied in the unpaired strange quark matter phase. Temperature effects are taken into account in order to study their stability compared to the 56Fe isotope and non-magnetized strangelets within the framework of the MIT bag model. It is concluded that the presence of a magnetic field tends to stabilize more the strangelets, even when temperature is considered. We find that the electric charge is modified in the presence of the magnetic field, leading to higher charge values for magnetized strangelets, when compared to the non-magnetized case.

CFL STRANGE QUARK MATTER AT FINITE TEMPERATURE

2007 ◽  
Vol 16 (09) ◽  
pp. 2851-2854
Author(s):  
L. PAULUCCI ◽  
J. E. HORVATH
Keyword(s):  
Ground State ◽  
Quark Matter ◽  
Finite Temperature ◽  
Strange Quark ◽  
Strange Quark Matter ◽  
Cooper Pairs ◽  
Baryonic Matter ◽  
Strange Quarks ◽  
Mit Bag Model ◽  
The Stability

The strange quark matter (SQM) hypothesis states that it is possible that the ground state of cold baryonic matter is a plasma composed roughly of equal numbers of up, down and strange quarks. This stability scenario is even more favorable if quarks are in a color flavor locked (CFL) state, in which quarks form pairs resembling the superconductivity Cooper pairs. We present calculations on the basis of the MIT Bag Model for the stability windows for SQM in the CFL state and for the energy of strangelets at non-zero temperatures, comparing with the unpaired SQM. We also discuss some astrophysical implications of such results.

Strange Quark Matter and Strangelets in a Strong Magnetic Field

2014 ◽  
Vol 62 (6) ◽  
pp. 859-863
Author(s):  
Meng Ding ◽  
Xin-Jian Wen ◽  
Fu-Hu Liu ◽  
Bao-Chun Li
Keyword(s):  
Magnetic Field ◽  
Strong Magnetic Field ◽  
Quark Matter ◽  
Strange Quark ◽  
Strange Quark Matter
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