Results 31 to 40 of about 5,515 (262)

Observations on staggered fermions at non-zero lattice spacing [PDF]

open access: yes, 2006
We show that the use of the fourth-root trick in lattice QCD with staggered fermions corresponds to a non-local theory at non-zero lattice spacing, but argue that the non-local behavior is likely to go away in the continuum limit.
Claude Bernard   +3 more
core   +2 more sources

Dynamical Casimir Effect for Gaussian Boson Sampling

open access: yes, 2018
We show that the Dynamical Casimir Effect (DCE), realized on two multimode coplanar waveguide resonators, implements a gaussian boson sampler (GBS).
Huh, Joonsuk   +2 more
core   +1 more source

Spin Gap Fixed Points in the Double Chain Problem [PDF]

open access: yes, 1994
Applying the bosonization procedure to weakly coupled Hubbard chains we discuss the fixed points of the renormalization group flow where all spin excitations are gapful and a singlet pairing becomes the dominant instability.Comment: 15 pages, TeX, C ...
A.A. Nersesyan   +25 more
core   +3 more sources

Anarchic Yukawas and top partial compositeness: the flavour of a successful marriage

open access: yes, 2015
The top quark can be naturally singled out from other fermions in the Standard Model due to its large mass, of the order of the electroweak scale. We follow this reasoning in models of pseudo Nambu Goldstone Boson composite Higgs, which may derive from ...
Cacciapaglia, Giacomo   +5 more
core   +3 more sources

Mechanisms of IgE‐mediated food allergy and the role of allergen‐specific B cells

open access: yesFEBS Letters, EarlyView.
Food allergy arises when allergen‐specific B cells preferentially produce immunoglobulin E (IgE) antibodies against harmless foods. This article explains the mechanisms driving IgE‐mediated reactions, highlights the central role of these B cells, and discusses how natural tolerance (NT) and oral immunotherapy (OIT) can reshape allergic immune responses.
Juan‐Felipe López   +2 more
wiley   +1 more source

Dimerized phase and transitions in a spatially anisotropic square lattice antiferromagnet

open access: yes, 2004
We investigate the spatially anisotropic square lattice quantum antiferromagnet. The model describes isotropic spin-1/2 Heisenberg chains (exchange constant J) coupled antiferromagnetically in the transverse (J_\perp) and diagonal (J_\times), with ...
A. O. Gogolin   +2 more
core   +1 more source

Interplay between Symmetric Exchange Anisotropy, Uniform Dzyaloshinskii-Moriya Interaction and Magnetic Fields in the Phase Diagram of Quantum Magnets and Superconductors [PDF]

open access: yes, 2010
We theoretically study the joint influence of uniform Dzyaloshinskii-Moriya (DM) interactions, symmetric exchange anisotropy (with its axis parallel to the DM vector) and arbitrarily oriented magnetic fields on one-dimensional spin 1/2 antiferromagnets ...
A. O. Gogolin   +10 more
core   +1 more source

LDAcoop: Integrating non‐linear population dynamics into the analysis of clonogenic growth in vitro

open access: yesMolecular Oncology, EarlyView.
Limiting dilution assays (LDAs) quantify clonogenic growth by seeding serial dilutions of cells and scoring wells for colony formation. The fraction of negative wells is plotted against cells seeded and analyzed using the non‐linear modeling of LDAcoop.
Nikko Brix   +13 more
wiley   +1 more source

Normalization of the covariant three-body bound state vertex function

open access: yes, 1997
The normalization condition for the relativistic three nucleon Bethe-Salpeter and Gross bound state vertex functions is derived, for the first time, directly from the three body wave equations.
D. Lurié   +17 more
core   +2 more sources

Ward Identities and chiral anomalies for coupled fermionic chains [PDF]

open access: yes, 2013
Coupled fermionic chains are usually described by an effective model written in terms of bonding and anti-bonding spinless fields with linear dispersion in the vicinities of the respective Fermi points. We derive for the first time exact Ward Identities (
A. Ferraz   +3 more
core   +2 more sources

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