Results 11 to 20 of about 668,340 (247)
Inverse Magnetic Catalysis in Bottom-Up Holographic QCD [PDF]
Phys. Rev. D 94, 074034 (2016), 2016 We explore the effect of magnetic field on chiral condensation in QCD via a simple bottom up holographic model which inputs QCD dynamics through the running of the anomalous dimension of the quark bilinear. Bottom up holography is a form of effective field theory and we use it to explore the dependence on the coefficients of the two lowest order terms ...
Evans, Nick +2 more
arxiv +3 more sources
Magnetic catalysis and inverse catalysis for heavy pions [PDF]
Journal 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 catalysis (enhancement of the quark condensate) at low temperature and inverse magnetic catalysis ...
Matteo Giordano +5 more
arxiv +10 more sources
Magnetic catalysis in flavored ABJM [PDF]
JHEP 02 (2014) 021, 2013 We study the magnetic catalysis of chiral symmetry breaking in the ABJM Chern-Simons matter theory with unquenched flavors in the Veneziano limit. We consider a magnetized D6-brane probe in the background of a flavored black hole which includes the backreaction of massless smeared flavors in the ABJM geometry.
Jokela, Niko +2 more
arxiv +6 more sources
Phys. Rev. A 65, 042306 (2002), 2001 We show that entanglement-assisted transformations of bipartite entangled states can be more efficient than catalysis [D. Jonathan and M. B. Plenio, Phys. Rev. Lett. 83, 3566 (1999)}, i.e., given two incomparable bipartite states not only can the transformation be enabled by performing collective operations with an auxiliary entangled state, but the ...
C.H. Bennett +14 more
arxiv +4 more sources
Magnetic Catalysis: A Review [PDF]
Lect. Notes Phys. 871, 13 (2013), 2012 We give an overview of the magnetic catalysis phenomenon. In the framework of quantum field theory, magnetic catalysis is broadly defined as an enhancement of dynamical symmetry breaking by an external magnetic field. We start from a brief discussion of spontaneous symmetry breaking and the role of a magnetic field in its a dynamics.
A. Akhiezer +186 more
arxiv +3 more sources
Catalysis of proton decay in superstring theory [PDF]
, 1997 Theory of superstrings on Calabi-Yau manifolds is applied to investigate catalysis of proton decay.
Malyuta, Yuri M.
arxiv +5 more sources
Enantioconvergent catalysis [PDF]
Beilstein Journal of Organic Chemistry, 2016 An enantioconvergent catalytic process has the potential to convert a racemic starting material to a single highly enantioenriched product with a maximum yield of 100%.
Justin T. Mohr +2 more
doaj +5 more sources
Kinetic Regularities of Methane Dry Reforming Reaction on Nickel-Containing Modified Ceria–Zirconia
Energies, 2021 The Ni-containing catalysts based on ceria–zirconia doped with Ti and Ti+Nb were prepared by the solvothermal method in supercritical fluids. Ni deposition was carried out by incipient wetness impregnation and the one-pot technique.
Valeria Fedorova +9 more
doaj +1 more source
Carbon Formation during Methane Dry Reforming over Ni-Containing Ceria-Zirconia Catalysts
Nanomaterials, 2022 Two series of Ni/Ce(Ti/Nb)ZrO2 catalysts were prepared using citrate route and original solvothermal continuous flow synthesis in supercritical isopropanol and studied in dry reforming of methane (DRM). TEM, XPS and FTIRS of adsorbed CO confirm influence
Ekaterina Smal +10 more
doaj +1 more source
Nature Reviews Chemistry, 2021 We describe as 'reversible' a bidirectional catalyst that allows a reaction to proceed at a significant rate in response to even a small departure from equilibrium, resulting in fast and energy-efficient chemical transformation. Examining the relation between reaction rate and thermodynamic driving force is the basis of electrochemical investigations ...
Vincent Fourmond +2 more
openaire +5 more sources