Results 91 to 100 of about 55,124 (278)

Quark Confinement and the Renormalization Group

, 2010
Recent approaches to quark confinement are reviewed, with an emphasis on their connection to renormalization group methods. Basic concepts related to confinement are introduced: the string tension, Wilson loops and Polyakov lines, string breaking, string
Migdal A. A., Migdal A. A., Tomboulis T. E.   +2 more
core   +1 more source

Illuminating Quantum Phenomena in 2D Materials: The Power of Optical Spectroscopy

Advanced Optical Materials, EarlyView.
Atomically thin 2D materials host quantum tunnelling, plasmonic and excitonic phenomena driven by reduced dimensionality and strong many‐body interactions. This review links these effects to state‐of‐the‐art optical probes—NSOM, pump–probe, CARS, TRR, and optical frequency comb spectroscopy—highlighting how their ultrahigh spatial–temporal resolution ...
Yuhui Zhou, Jiaru Zhang, Guanghui Ren, Bao Yue Zhang, Jian Zhen Ou   +4 more
wiley   +1 more source

On avoiding Ostrogradski instabilities within Asymptotic Safety

Journal of High Energy Physics, 2017
We study the renormalization group flow of gravity coupled to scalar matter using functional renormalization group techniques. The novel feature is the inclusion of higher-derivative terms in the scalar propagator.
Daniel Becker, Chris Ripken, Frank Saueressig   +2 more
doaj   +1 more source

The learning-relative hemodynamic modulation of cortical plasticity induced by a force-control motor training

Frontiers in Neuroscience, 2022
BackgroundNovel motor skills are generally acquired through repetitive practices which are believed to be strongly related to neural plasticity mechanisms.
Yongrong Wang, Shuai Feng, Rui Yang, Wensheng Hou, Wensheng Hou, Wensheng Hou, Xiaoying Wu, Xiaoying Wu, Xiaoying Wu, Lin Chen, Lin Chen   +10 more
doaj   +1 more source

Chemically‐Disordered Transparent Conductive Perovskites With High Crystalline Fidelity

Advanced Science, EarlyView.
Kinetically arrested, chemically disordered perovskite thin films exhibit exquisite crystalline fidelity, broad IR–UV transparency, and low resistivity, despite incorporating five mismatched 3d–5d cations, including Cr and W. This study unites electronic correlation, cation diversity, valence complexity, and disorder—enabling new transparent conductors
Saeed S. I. Almishal, Pat Kezer, Jacob T. Sivak, Yasuyuki Iwabuchi, Sai Venkata Gayathri Ayyagari, Saugata Sarker, Matthew Furst, Gerald Bejger, Billy Yang, Simon Gelin, Nasim Alem, Ismaila Dabo, Christina M. Rost, Susan B. Sinnott, Vincent Crespi, Venkatraman Gopalan, Roman Engel‐Herbert, John T. Heron, Jon‐Paul Maria   +18 more
wiley   +1 more source

Gauge (in)dependence and background field formalism

Physics Letters B, 2019
It is shown that the gauge invariance and gauge dependence properties of effective action for Yang-Mills theories should be considered as two independent issues in the background field formalism.
Peter M. Lavrov
doaj   +1 more source

Inhaling Eugenol Inhibits NAFLD by Activating the Hepatic Ectopic Olfactory Receptor Olfr544 and Modulating the Gut Microbiota

Advanced Science, EarlyView.
Inhalable eugenol (EUG) from clove oil attenuates NAFLD by activating hepatic olfactory receptor Olfr544, triggering cAMP/PKA/CREB signaling to enhance lipolysis/oxidation. EUG concurrently restores gut microbiota, enriching probiotics (L. reuteri XR23/L. johnsonii XR25) and metabolites (IPA/5‐HIAA) that suppress lipogenesis.
Xiao‐Ran Wang, Zhan‐Zhan Li, Shu‐Ding Sun, Ya‐Gang Song, Jin‐Xin Miao, Xiang‐Xiang Wu, Yong‐Li Han, Xiao‐Lei Zhang, Wen‐Jing Chen, Qing‐Hua Wang, Yu Zhang, Yiping Fu, Yu‐ting Liu, Lin‐yan Lang, Wen‐Xia Zhao, Ming‐San Miao   +15 more
wiley   +1 more source

Single-boson exchange representation of the functional renormalization group for strongly interacting many-electron systems

Physical Review Research, 2022
We present a reformulation of the functional renormalization group (fRG) for many-electron systems, which relies on the recently introduced single-boson exchange (SBE) representation of the parquet equations [F. Krien, A. Valli, and M. Capone, Phys. Rev.
Pietro M. Bonetti, Alessandro Toschi, Cornelia Hille, Sabine Andergassen, Demetrio Vilardi   +4 more
doaj   +1 more source

Eliashberg equations derived from the functional renormalization group

, 2005
We describe how the fermionic functional renormalization group (fRG) flow of a Cooper+forward scattering problem can be continued into the superconducting state.
Honerkamp, Carsten, Salmhofer, Manfred
core   +1 more source

Correlated starting points for the functional renormalization group [PDF]

Physical Review B, 2015
We present a general frame to extend functional renormalization group (fRG) based computational schemes by using an exactly solvable interacting reference problem as starting point for the RG flow. The systematic expansion around this solution accounts for a non-perturbative inclusion of correlations.
Andrey A. Katanin, Ciro Taranto, Nils Wentzell, Nils Wentzell, Nils Wentzell, Sabine Andergassen, Sabine Andergassen, Alessandro Toschi   +7 more
openaire   +5 more sources