NEUTRAL DENSE QUARK MATTER AT INTERMEDIATE TEMPERATURE

2007 ◽  
Vol 16 (07n08) ◽  
pp. 2313-2318
Author(s):  
LIANYI HE ◽  
MENG JIN ◽  
PENGFEI ZHUANG
Keyword(s):  
Phase Transition ◽  
Phase Diagram ◽  
Low Temperature ◽  
Superconducting State ◽  
Quark Matter ◽  
Continuous Phase ◽  
Temperature Behavior ◽  
Zero Temperature ◽  
Continuous Phase Transition ◽  
Dense Quark Matter

In two flavor neutral quark matter the uniform color superconducting state suffers the chromomagnetic instability at zero temperature. While this instability is extended to low temperature, it is fully cured above a turning temperature. There is a continuous phase transition from some non-uniform phase to the uniform 2SC/g2SC phase at the turning temperature. The introduction of the LOFF state removes the strange temperature behavior of the diquark condensate and significantly changes the phase diagram of neutral dense quark matter.

scholarly journals CHIRALLY SYMMETRIC BUT CONFINED HADRONS AT FINITE DENSITY

2008 ◽  
Vol 23 (27n30) ◽  
pp. 2385-2388 ◽  
Author(s):  
L. YA. GLOZMAN ◽  
R. F. WAGENBRUNN
Keyword(s):  
Phase Transition ◽  
Phase Diagram ◽  
Low Temperature ◽  
Quark Matter ◽  
Chemical Potential ◽  
Heavy Ion ◽  
Finite Density ◽  
Qcd Phase Diagram

At a critical finite chemical potential and low temperature QCD undergoes the chiral restoration phase transition. The folklore tradition is that simultaneously hadrons are deconfined and there appears the quark matter. We demonstrate that it is possible to have confined but chirally symmetric hadrons at a finite chemical potential and hence beyond the chiral restoration point at a finite chemical potential and low temperature there could exist a chirally symmetric matter consisting of chirally symmetric but confined hadrons. If it does happen in QCD, then the QCD phase diagram should be reconsidered with obvious implications for heavy ion programs and astrophysics.

Über eine neue Modifikation von As2O5/On a New Modification of As2O5

1979 ◽  
Vol 34 (1) ◽  
pp. 10-13 ◽  
Author(s):  
Martin Jansen
Keyword(s):  
Crystal Structure ◽  
Phase Transition ◽  
High Temperature ◽  
Low Temperature ◽  
Continuous Phase ◽  
Continuous Phase Transition ◽  
Space Group ◽  
Lattice Constants ◽  
Temperature Form

Abstract High temperature Guinier photographs of As2O5 indicate a continuous phase transition to HT-As2O5, which is accomplished at 305 ± 3 °C. The crystal structure of HT-As2O5 has been derived from the low temperature form; space group and lattice constants are P41212-D44 and a = 857.2 pm, c = 463.6pm (310 °C), respectively. According to symmetry considerations, the phase transition is expected to be of pure ferroelastic-paraelastic type (422F 222).

scholarly journals Continuous Phase Transition without Gap Closing in Non-Hermitian Quantum Many-Body Systems

2020 ◽  
Vol 125 (26) ◽  
Author(s):  
Norifumi Matsumoto ◽  
Kohei Kawabata ◽  
Yuto Ashida ◽  
Shunsuke Furukawa ◽  
Masahito Ueda
Keyword(s):  
Phase Transition ◽  
Continuous Phase ◽  
Many Body ◽  
Continuous Phase Transition ◽  
Many Body Systems ◽  
Gap Closing

Higher Order Criteria on the Continuous Phase Transition

1989 ◽  
Vol 58 (3) ◽  
pp. 898-904
Author(s):  
Ruibao Tao ◽  
Xiao Hu ◽  
Masuo Suzuki
Keyword(s):  
Phase Transition ◽  
Continuous Phase ◽  
Higher Order ◽  
Continuous Phase Transition

Chiral condensate of cold dense quark matter with external magnetic field

2020 ◽  
Vol 35 (19) ◽  
pp. 2050160
Author(s):  
Song Shi ◽  
Juan Liu
Keyword(s):  
Magnetic Field ◽  
Phase Diagram ◽  
External Magnetic Field ◽  
Quark Matter ◽  
Chemical Potential ◽  
Field Approximation ◽  
Chiral Condensate ◽  
Mean Field Approximation ◽  
Dynamical Mass ◽  
Dense Quark Matter

At zero temperature and finite chemical potential, the gap equation of cold dense quark matter under external magnetic field is studied with NJL model in the mean-field approximation. By introducing new methods, it is found that the Nambu phase has sophisticated structures which have not been studied before. As a consequence, the phase diagram is expanded and divided into five areas, in each area the condensate has unique behaviors with chemical potential varying. Furthermore, the expanded phase diagram is used to predict the order of phase transition between the Nambu phase and the Wigner phase, it can also be used to explain the relations of dynamical mass and chemical potential. Meanwhile, the metastable states and cascade effect of dynamical mass are studied in this paper.

ATMOSPHERIC CONVECTION AS A CONTINUOUS PHASE TRANSITION: FURTHER EVIDENCE

2009 ◽  
Vol 23 (28n29) ◽  
pp. 5453-5465 ◽  
Author(s):  
OLE PETERS ◽  
J. DAVID NEELIN
Keyword(s):  
Phase Transition ◽  
Hurricane Katrina ◽  
Rain Rate ◽  
Extreme Event ◽  
Atmospheric Precipitation ◽  
Continuous Phase ◽  
Critical Parameters ◽  
Continuous Phase Transition ◽  
Scale Free ◽  
Tuning Parameters

We present further methods to investigate in how far atmospheric precipitation can be described as a continuous phase transition. Previous work has shown a scale-free range in the rainfall event size distribution and a suggestive power-law pickup in the rain rate above a critical level of instability. Here we examine an additional technique for estimating critical parameters, we investigate the rain rate pickup for an example of an extreme event, namely satellite observations of Hurricane Katrina, and develop an analysis of fluctuations in the rain rate to estimate uncertainties in the tuning parameters relevant for the transition.

Characterization of a continuous phase transition in a chaotic system

2020 ◽  
Vol 131 (2) ◽  
pp. 20002
Author(s):  
Edson D. Leonel ◽  
Makoto Yoshida ◽  
Juliano Antonio de Oliveira
Keyword(s):  
Phase Transition ◽  
Chaotic System ◽  
Continuous Phase ◽  
Continuous Phase Transition
Sign in / Sign up

Export Citation Format

Share Document