Results 121 to 130 of about 55,124 (278)

Asymptotically safe gravity with fermions

open access: yesPhysics Letters B, 2020
We use the functional renormalization group equation for the effective average action to study the fixed point structure of gravity-fermion systems on a curved background spacetime.
Jesse Daas   +3 more
doaj   +1 more source

Scaling and superscaling solutions from the functional renormalization group

open access: yes, 2015
We study the renormalization group flow of $\mathbb{Z}_2$-invariant supersymmetric and non-supersymmetric scalar models in the local potential approximation using functional renormalization group methods. We focus our attention to the fixed points of the
Hellwig, Tobias   +2 more
core   +1 more source

Cuprate Twistronics for Quantum Hardware

open access: yesAdvanced Quantum Technologies, EarlyView.
This review bridges decades of foundational research with emerging fabrication techniques such as molecular beam epitaxy and cryogenic stacking. By enabling control over electronic correlations and symmetry in twisted cuprate heterostructures, it highlights how cuprate twistronics could open new paths to overcome decoherence and scalability challenges ...
Tommaso Confalone   +14 more
wiley   +1 more source

Discrimination of Tryptophan Enantiomers at Sub‐pm Level by Multiparametric Analysis of a Label‐Free Organic Immunosensor

open access: yesSmall Methods, EarlyView.
Multiparametric analysis is a crucial aspect for enhancing the final sensitivity of biosensors based on organic transistors. The traditional approaches to treat the experimental data are not always suitable to extract the correct response. In this work EGOT characteristics are processed to achieve enantiodiscrimination of free Tryptophan enantiomers ...
Matteo Genitoni   +9 more
wiley   +1 more source

Single-boson exchange functional renormalization group application to the two-dimensional Hubbard model at weak coupling. [PDF]

open access: yesEur Phys J B, 2022
Fraboulet K   +6 more
europepmc   +1 more source

Functional renormalization group approach to the Kraichnan model [PDF]

open access: yesPhysical Review E, 2015
We study the anomalous scaling of the structure functions of a scalar field advected by a random Gaussian velocity field, the Kraichnan model, by means of Functional Renormalization Group techniques. We analyze the symmetries of the model and derive the leading correction to the structure functions considering the renormalization of composite operators
openaire   +4 more sources

Redefining Graphene Oxide: The Role of Organosulfate Groups in Charging Dynamics and Colloidal Stability

open access: yesSmall Structures, EarlyView.
This work redefines graphene oxide (GO) as a 2D polyelectrolyte by revealing the dominant role of organosulfate groups in its charging dynamics and stability. Challenging conventional models, the findings offer a predictive framework for the design and optimization of GO‐based membranes, electrodes, and nanomaterials across diverse technologies ...
Mohsen Moazzami Gudarzi   +3 more
wiley   +1 more source

Finite temperature crossovers near quantum tricritical points in metals

open access: yes, 2010
We present a renormalization group treatment of quantum tricriticality in metals. Applying a set of flow equations derived within the functional renormalization group framework we evaluate the correlation length in the quantum critical region of the ...
Bauer, J., Jakubczyk, P., Metzner, W.
core   +1 more source

A complex network perspective on brain disease

open access: yesBiological Reviews, EarlyView.
ABSTRACT If brain anatomy and dynamics have a complex network structure as it has become standard to posit, it is reasonable to assume that such a structure should play a key role not only in brain function but also in brain dysfunction. However, exactly how network structure is implicated in brain damage and whether at least some pathologies can be ...
David Papo, Javier M. Buldú
wiley   +1 more source

Renormalization Group Study of Magnetic Catalysis in the 3d Gross-Neveu Model

open access: yes, 2012
Magnetic catalysis describes the enhancement of symmetry breaking quantum fluctuations in chirally symmetric quantum field theories by the coupling of fermionic degrees of freedom to a magnetic background configuration.
Daniel D. Scherer   +5 more
core   +1 more source

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