Results 101 to 110 of about 802,166 (283)

Functional renormalization group for a large moiré unit cell [PDF]

open access: yes, 2020
Layers of two-dimensional materials arranged at a twist angle with respect to each other lead to enlarged unit cells with potentially strongly altered band structures, offering a new arena for novel and engineered many-body ground states.
Lennart Klebl, D. Kennes, C. Honerkamp
semanticscholar   +1 more source

Tailoring Robust Quantum Anomalous Hall Effect via Entropy‐Engineering

open access: yesAdvanced Materials, EarlyView.
Bandstructure renormalization, without (w/o) spin‐orbit interaction (SOI) (left) and with SOI (right), in the low‐energy Dirac bands of zero‐entropy (purple) and entropic (green) VCl3 monolayer (ML) with long‐range ordering (LRO). Abstract The development of quantum materials and the tailoring of their functional properties is of fundamental interest ...
Syeda Amina Shabbir   +3 more
wiley   +1 more source

Four Loop Scalar ϕ4 Theory Using the Functional Renormalization Group †

open access: yesUniverse, 2019
We work with a symmetric scalar theory with quartic coupling in 4-dimensions. Using a 2PI effective theory and working at 4 loop order, we renormalize with a renormalization group method. All divergences are absorbed by one bare coupling constant and one
Margaret E. Carrington   +1 more
doaj   +1 more source

UV completion of extradimensional Yang-Mills theory for Gauge-Higgs unification

open access: yesSciPost Physics, 2023
The $SU(N)$ Yang-Mills theory in $\mathbb R^4\times S^1$ spacetime is studied as a simple toy model of Gauge-Higgs unification. The theory is perturbatively nonrenormalizable but could be formulated as an asymptotically safe theory, namely a ...
Álvaro Pastor-Gutiérrez, Masatoshi Yamada
doaj   +1 more source

Frustrated quantum spins at finite temperature: Pseudo-Majorana functional renormalization group approach [PDF]

open access: yesPhysical review B, 2020
Nils Niggemann,1 Björn Sbierski,2 and Johannes Reuther1, 3 Dahlem Center for Complex Quantum Systems and Institut für Theoretische Physik, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany Department of Physics, University of California ...
Nils Niggemann, B. Sbierski, J. Reuther
semanticscholar   +1 more source

Imprinting Electrically Switchable Scalar Spin Chirality by Anisotropic Strain in a Kagome Antiferromagnet

open access: yesAdvanced Science, EarlyView.
It is shown that anisotropic strain offers a novel approach to control the magnetic ground state in heterostructures of a Kagome antiferromagnet, unlocking new functionalities. This strain induces finite scalar spin chirality, resulting in a pronounced Berry curvature in momentum space, leading to room‐temperature anomalous Hall effect.
Debjoty Paul   +11 more
wiley   +1 more source

Functional renormalization group for three-dimensional quantum magnetism [PDF]

open access: yes, 2016
We formulate a pseudofermion functional renormalization group (PFFRG) scheme to address frustrated quantum magnetism in three dimensions. In a scenario where many numerical approaches fail due to sign problem or small system size, three-dimensional (3D ...
Iqbal, Yasir   +4 more
core   +2 more sources

Targeted Intervention Strategies for Maternal–Offspring Transmission of Christensenellaceae in Pigs via a Deep Learning Model

open access: yesAdvanced Science, EarlyView.
This study deciphers maternal‐driven microbial transmission in pigs using a deep learning model (maternal–offspring microbial transmission model), identifying Christensenellaceae R‐7 group as a key transmitted taxon. Filtered galacto‐oligosaccharides‐targeted Christensenellaceae R‐7 group alters offspring microbial functions via maternal ...
Haibo Shen   +9 more
wiley   +1 more source

Truncated-Unity Functional Renormalization Group for Multiband Systems With Spin-Orbit Coupling

open access: yesFrontiers in Physics, 2018
Although the functional renormalization group (fRG) is by now a well-established method for investigating correlated electron systems, it is still undergoing significant technical and conceptual improvements.
Giulio A. H. Schober   +5 more
doaj   +1 more source

Persistent currents in mesoscopic rings: A numerical and renormalization group study

open access: yes, 2002
The persistent current in a lattice model of a one-dimensional interacting electron system is systematically studied using a complex version of the density matrix renormalization group algorithm and the functional renormalization group method.
A. Cohen   +46 more
core   +1 more source

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