Results 51 to 60 of about 185,851 (190)
Phases Of Adjoint QCD$_3$ And Dualities
SciPost Physics, 2018 We study 2+1 dimensional gauge theories with a Chern-Simons term and a fermion in the adjoint representation. We apply general considerations of symmetries, anomalies, and renormalization group flows to determine the possible phases of the theory as a
Jaume Gomis, Zohar Komargodski, Nathan Seiberg
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Dynamical Low-Mass Fermion Generation in Randall-Sundrum Background
, 2003 It is investigated that a dynamical mechanism to generate a low mass fermion in Randall-Sundrum (RS) background. We consider a five-dimensional four- fermion interaction model with two kinds of bulk fermion fields and take all the mass scale in the five ...
Inagaki, Tomohiro
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SSOR Preconditioning of Improved Actions [PDF]
, 1997 We generalize local lexicographic SSOR preconditioning for the Sheikholeslami-Wohlert improved Wilson fermion action and the truncated perfect free fermion action. In our test implementation we achieve performance gains as known from SSOR preconditioning
A. Frommer +14 more
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International Journal of Modern Physics A, 2002 The current status of bounds on and limits of fermion determinants in two, three and four dimensions in QED and QCD is reviewed. A new lower bound on the two-dimensional QED determinant is derived. An outline of the demonstration of the continuity of this determinant at zero mass when the background magnetic field flux is zero is also given.
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Fermions without Fermions: The Nicolai Map Revisited [PDF]
Progress of Theoretical Physics, 1985 Summary: For supersymmetric fermion-boson models, the Nicolai map is so designed as (i) to cancel the fermion determinant and (ii) to reduce the boson measure to a free one. By analyzing a simple model, it is shown that (i) is realized only for suitable matrix elements of the evolution operator, but not for the trace; the realization requires proper ...
Ezawa, Hiroshi, Klauder, John R.
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Lattice simulation with the Majorana positivity
EPJ Web of Conferences, 2018 While the sign problem of the Dirac fermion is conditioned by the semipositivity of a determinant, that of the Majorana fermion is conditioned by the semipositivity of a Pfaffian.
Yamamoto Arata, Hayata Tomoya
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Nuclear Physics B, 2020 We derive the conditions for matching high-energy renormalizable Quantum Field Theories onto low-energy nonrenormalizable ones by means of the FDR approach described in [1]. Our procedure works order-by-order in the loop expansion and avoids the addition
Roberto Pittau
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Dark sector effective field theory
Journal of High Energy Physics, 2023 We introduce the effective field theory of two different light dark particles interacting with the standard model (SM) light states in a single vertex, termed dark sector effective field theory (DSEFT). We focus on the new light particles with spin up to
Jin-Han Liang +3 more
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Triplet fermions and Dirac fermions in borophene
Physical Review B, 2017 Borophene is a monolayer materials made of boron. A perfect planar boropehene called $β_{12}$ borophene has Dirac cones and they are well reproduced by a tight-binding model according to recent experimental and first-principles calculation results. We explicitly derive a Dirac theory for them. Dirac cones are gapless when the inversion symmetry exists,
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High-Temperature Atomic Superfluidity in Lattice Boson-Fermion Mixtures [PDF]
, 2004 We consider atomic Bose-Fermi mixtures in optical lattices and study the superfluidity of fermionic atoms due to s-wave pairing induced by boson-fermion interactions.
Albus, A., Illuminati, F.
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