Results 101 to 110 of about 890,334 (313)

Anomalies, Horizons and Hawking radiation

, 2008
Hawking radiation is obtained from the Reissner-Nordstr\"{o}m blackhole with a global monopole and the Garfinkle-Horowitz-Strominger blackhole falling in the class of the most general spherically symmetric blackholes $(\sqrt{-g}\neq1)$, using only chiral
Banerjee R., Bertlmann R., Iso S., Sunandan Gangopadhyay, Vagenas E. C., Wu S. Q.   +5 more
core   +1 more source

Chiral anomaly calculation in the extended coupled Rarita-Schwinger model [PDF]

Physical Review D, 2019
We recalculate the chiral anomaly in the Abelian gauge model in which a spin-$\frac{1}{2}$ field is directly coupled to a Rarita-Schwinger spin-$\frac{3}{2}$ field, using the extended theory in which there is an exact fermionic gauge invariance.
S. Adler, Pablo Pais
semanticscholar   +1 more source

Bootstrapping the chiral-gravitational anomaly

Journal of High Energy Physics
Abstract We analyze causality and unitarity constraints in graviton scattering amplitudes, aiming to establish new bounds on theories with U(1)-gravitational anomalies, such as axion models or strongly-coupled gauge theories. For this purpose, we show the necessity of coupling these theories to gravity.
Zi-Yu Dong, Teng Ma, Alex Pomarol, Francesco Sciotti   +3 more
openaire   +4 more sources

Disorder Scattering Induced Large Room Temperature Nonlinear Anomalous Hall Effect in a Semiconductor CdGeAs2

Advanced Materials, EarlyView.
Bulk CdGeAs2, a well‐known nonlinear optical semiconductor, exhibits an exceptionally large room‐temperature nonlinear Hall effect (NLHE), achieving a record‐high nonlinear Hall responsivity of 2.2 × 10−3 m/V. This pronounced NLHE enables broadband frequency mixing up to the megahertz regime, establishing CdGeAs2 as a promising platform for next ...
Seng Huat Lee, Takumi Iwaya, Kosuke Nakayama, Ting Yong Lim, Lujin Min, Jingyang He, Yu Wang, Venkatraman Gopalan, Zhijian Xie, Xing‐Chen Pan, Yong P. Chen, Tay‐Rong Chang, Hsin Lin, Liang Fu, Kouji Segawa, Takafumi Sato, Zhiqiang Mao   +16 more
wiley   +1 more source

Chiral soliton lattice phase in warm QCD

Physics Letters B, 2021
We analyze the phase diagram of quantum chromodynamics at low-to-moderate temperature, baryon chemical potential and external magnetic field within chiral perturbation theory at next-to-leading order of the derivative expansion.
Tomáš Brauner, Helena Kolešová, Naoki Yamamoto   +2 more
doaj   +1 more source

Quantum Kinetic Theory of the Chiral Anomaly [PDF]

, 2017
We present a general quantum kinetic theory of low-field magnetotransport in weakly disordered crystals that accounts fully for the interplay between electric-field-induced interband coherence, Bloch-state scattering, and an external magnetic field.
A. Sekine, D. Culcer, A. Macdonald
semanticscholar   +1 more source

Universal Conductance Fluctuations in Quantum Anomalous Hall Insulators

Advanced Materials, EarlyView.
Universal conductance fluctuations are observed in mesoscopic quantum anomalous Hall insulators. Two distinct fluctuation patterns are identified, arising from different interference processes of bulk and chiral edge states, respectively. These findings unveil rich quantum interference phenomena in quantum anomalous Hall insulators and provide insights
Peng Deng, Peng Zhang, Gang Qiu, Ting‐Hsun Yang, Chang Niu, Yaochen Li, Wenqiang Cui, Yang Feng, Peide D. Ye, Ke He, Kai Chang, Kang L. Wang   +11 more
wiley   +1 more source

The γπ → ππ anomaly from lattice QCD and dispersion relations

Journal of High Energy Physics, 2021
We propose a formalism to extract the γπ → ππ chiral anomaly F 3π from calculations in lattice QCD performed at larger-than-physical pion masses. To this end, we start from a dispersive representation of the γ (*) π → ππ amplitude, whose main quark-mass ...
Malwin Niehus, Martin Hoferichter, Bastian Kubis   +2 more
doaj   +1 more source

Breakdown of the Chiral Anomaly in Weyl Semimetals in a Strong Magnetic Field

, 2017
The low-energy quasiparticles of Weyl semimetals are a condensed-matter realization of the Weyl fermions introduced in relativistic field theory. Chiral anomaly, the nonconservation of the chiral charge under parallel electric and magnetic fields, is ...
Kim, Pilkwang, Park, Cheol-Hwan, Ryoo, Ji Hoon   +2 more
core   +1 more source

Chiral Anomaly of Weyl Magnons in Stacked Honeycomb Ferromagnets [PDF]

, 2017
Chiral anomaly of Weyl magnons (WMs), featured by nontrivial band crossings at paired Weyl nodes (WNs) of opposite chirality, is investigated. It is shown that WMs can be realized in stacked honeycomb ferromagnets.
Ying Su, X. R. Wang
semanticscholar   +1 more source