Results 81 to 90 of about 4,908,628 (192)

Spectral functions in the sigma-channel near the critical end point [PDF]

open access: yes, 2002
Spectral functions in the $\sigma$-channel are investigated near the chiral critical end point (CEP), that is, the point where the chiral phase transition ceases to be first-ordered in the $(\mu,T)$-plane of the QCD phase diagram.
A. Barducci   +39 more
core   +2 more sources

$\mathbb{Z}_4$ transitions in quantum loop models on a zig-zag ladder

open access: yesSciPost Physics
We study the nature of quantum phase transitions out of $\mathbb{Z}_4$ ordered phases in quantum loop models on a zig-zag ladder. We report very rich critical behavior that includes a pair of Ising transitions, a multi-critical Ashkin-Teller point and a ...
Bowy M. La Rivière, Natalia Chepiga
doaj   +1 more source

Anomalous high-magnetic field electronic state of the nematic superconductors FeSe_{1−x}S_{x}

open access: yesPhysical Review Research, 2020
Understanding superconductivity requires detailed knowledge of the normal electronic state from which it emerges. A nematic electronic state that breaks the rotational symmetry of the lattice can potentially promote unique scattering relevant for ...
M. Bristow   +9 more
doaj   +1 more source

Proton number fluctuation as a signal of the QCD critical end-point [PDF]

open access: yes, 2003
We argue that the event-by-event fluctuation of the proton number is a meaningful and promising observable for the purpose of detecting the QCD critical end-point in heavy-ion collision experiments.
Hatta, Y., Stephanov, M. A.
core   +2 more sources

Quantum Triple Point and Quantum Critical End Points in Metallic Magnets

open access: yesPhysical Review Letters, 2017
In low-temperature metallic magnets, ferromagnetic (FM) and antiferromagnetic (AFM) orders can exist in a single system in different parts of the phase diagram as a function of some control parameter. These phases can be adjacent, or exist concurrently, resulting in a phase transition between a FM phase and an AFM one, or between a phase of concurrent ...
Belitz, D., Kirkpatrick, T. R.
openaire   +4 more sources

Theory of magnetic field-induced metaelectric critical end point in BiMn$_2$O$_5$

open access: yes, 2008
A recent experiment on the multiferroic BiMn$_2$O$_5$ compound under a strong applied magnetic field revealed a rich phase diagram driven by the coupling of magnetic and charge (dipolar) degrees of freedom.
A. M. Kadomtseva   +7 more
core   +1 more source

On the critical end point in a two-flavor linear sigma model coupled to quarks

open access: yes, 2020
We use the linear sigma model coupled to quarks to explore the location of the phase transition lines in the QCD phase diagram from the point of view of chiral symmetry restoration at high temperature and baryon chemical potential.
Ayala, Alejandro   +4 more
core   +1 more source

Solitonic Charged Pion Crystal in Dense QCD – from a generalized Ginzburg-Landau approach –

open access: yesEPJ Web of Conferences, 2014
We present a systematic study of the phase structure of QCD near the critical point within a general Ginzburg-Landau framework. In particular, we are interested in clarifying the effects of isospin mismatch on the critical point and inhomogeneous phases ...
Abuki Hiroaki
doaj   +1 more source

Chain length dependence of the polymer-solvent critical point parameters

open access: yes, 1996
We report grand canonical Monte Carlo simulations of the critical point properties of homopolymers within the Bond Fluctuation model. By employing Configurational Bias Monte Carlo methods, chain lengths of up to N=60 monomers could be studied.
Ginzburg V. I.   +5 more
core   +2 more sources

Based on Critical Realism A Critique of Sadr's Islamic Economics Theory [PDF]

open access: yesحکمت معاصر, 2013
This paper studies the capability and capacity of critical realism in justifying Sadr’s Islamic Economics theory from methodological individualism point of view.
Seyed Mohammad Reza Amiri Tehrani   +1 more
doaj  

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