Results 41 to 50 of about 48,990 (284)

Towards the phase diagram of cold and dense heavy QCD [PDF]

open access: yesProceedings of The 39th International Symposium on Lattice Field Theory — PoS(LATTICE2022), 2022
The thermodynamics of QCD with sufficiently heavy dynamical quarks can be described by a three-dimensional Polyakov loop effective theory, obtained after a truncated character and hopping expansion.
Amine Chabane, O. Philipsen
semanticscholar   +1 more source

Testing the criterion for correct convergence in the complex Langevin method

open access: yesJournal of High Energy Physics, 2018
Recently the complex Langevin method (CLM) has been attracting attention as a solution to the sign problem, which occurs in Monte Carlo calculations when the effective Boltzmann weight is not real positive.
Keitaro Nagata   +2 more
doaj   +1 more source

Pion and kaon condensation at zero temperature in three-flavor χPT at nonzero isospin and strange chemical potentials at next-to-leading order

open access: yesJournal of High Energy Physics, 2020
We consider three-flavor chiral perturbation theory (χPT) at zero temperature and nonzero isospin (μ I ) and strange (μ S ) chemical potentials. The effective potential is calculated to next-to-leading order (NLO) in the π ± -condensed phase, the K ...
Prabal Adhikari, Jens O. Andersen
doaj   +1 more source

Exploring the phase diagram of QCD with complex Langevin simulations [PDF]

open access: yes, 2014
I Real Langevin simulations converge to the expected result. For gauge theories simulations with complexified degrees of freedom are no longer in a compact group, SU(3)→ SL(3,C), and convergence is no longer guaranteed and needs to be checked [2].
G. Aarts   +5 more
semanticscholar   +1 more source

Exploring the phase diagram of sextet QCD [PDF]

open access: yesProceedings of The XXVI International Symposium on Lattice Field Theory — PoS(LATTICE 2008), 2009
As a follow up to the previous talk about the beta function of SU(3) gauge theory with Nf=2 symmetric representation (clover) fermions [arXiv:0809.2885 [hep-lat]], we describe our explorations of the beta-kappa plane, away from the massless limit. Our simulations are mostly done on lattices of length L=8 and 12.
DeGrand, Thomas   +2 more
openaire   +2 more sources

Infrared Photovoltaic-Battery Hybrid Systems Enabled by Colloidal Quantum Dots. [PDF]

open access: yesChem Asian J
Photovoltaic–battery (PV/B) hybrid systems are key for sustainable energy but face cost and efficiency limits. Colloidal quantum dots (CQDs) enable low‐cost near‐infrared light harvesting, surpassing silicon and III–V PVs. This review analyzes CQD properties, their roles in NIR PVs and batteries, and synthesizes current research to highlight progress ...
Ji H, Liu R, Smowton P, Hou B.
europepmc   +2 more sources

Magnetic catalysis and inverse catalysis for heavy pions

open access: yesJournal of High Energy Physics, 2019
We investigate the QCD phase diagram for nonzero background magnetic fields using first-principles lattice simulations. At the physical point (in terms of quark masses), the thermodynamics of this system is controlled by two opposing effects: magnetic ...
G. Endrődi   +4 more
doaj   +1 more source

Phase diagram of QCD at finite temperature and chemical potential from lattice simulations with dynamical Wilson quarks [PDF]

open access: yes, 2004
We present the first results for lattice QCD at finite temperature T and chemical potential {mu} with four flavors of Wilson quarks. The calculations are performed using the imaginary chemical potential method at {kappa}=0,0.001,0.15,0.165,0.17 and 0.25,
He-sheng Chen, Xiang-Qian Luo
semanticscholar   +1 more source

QCD Phase Diagram with Imaginary Chemical Potential

open access: yesEPJ Web of Conferences, 2012
We report our recent results on the QCD phase diagram obtained from the lattice QCD simulation. The location of the phase boundary between hadronic and QGP phases in the two-flavor QCD phase diagram is investigated.
Nakamura Atsushi, Nagata Keitaro
doaj   +1 more source

Combining the complex Langevin method and the generalized Lefschetz-thimble method

open access: yesJournal of High Energy Physics, 2017
The complex Langevin method and the generalized Lefschetz-thimble method are two closely related approaches to the sign problem, which are both based on complexification of the original dynamical variables. The former can be viewed as a generalization of
Jun Nishimura, Shinji Shimasaki
doaj   +1 more source

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