General anomaly matching by Goldstone bosons
Sign Up to like & getrecommendations! Published in 2020 at "Journal of High Energy Physics"
DOI: 10.1007/jhep03(2021)057
Abstract: Abstract We describe how Goldstone bosons of spontaneous symmetry breaking G → H can reproduce anomalies of UV theories under the symmetry group G at the nonpertur- bative level. This is done by giving a… read more here.
Keywords: goldstone bosons; matching goldstone; goldstone; anomaly matching ... See more keywords
Directional Goldstone waves in polariton condensates close to equilibrium
Sign Up to like & getrecommendations! Published in 2020 at "Nature Communications"
DOI: 10.1038/s41467-019-13733-x
Abstract: Quantum fluids of light are realized in semiconductor microcavities using exciton-polaritons, solid-state quasi-particles with a light mass and sizeable interactions. Here, we use the microscopic analogue of oceanographic techniques to measure the excitation spectrum of… read more here.
Keywords: goldstone; waves polariton; polariton condensates; goldstone waves ... See more keywords
Natural-scalaron inflation
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2021/10/011
Abstract: A pseudo Nambu-Goldstone boson (such as an axion-like particle) is a theoretically well-motivated inflaton as it features a naturally flat potential (natural inflation). This is because Goldstone's theorem protects its potential from sizable quantum corrections.… read more here.
Keywords: goldstone; cosmology; scalaron; scalaron inflation ... See more keywords
Spontaneous symmetry breaking and Nambu–Goldstone modes in open classical and quantum systems
Sign Up to like & getrecommendations! Published in 2020 at "Progress of Theoretical and Experimental Physics"
DOI: 10.1093/ptep/ptaa005
Abstract: We discuss spontaneous symmetry breaking of open classical and quantum systems. When a continuous symmetry is spontaneously broken in an open system, a gapless excitation mode appears corresponding to the Nambu–Goldstone mode. Unlike isolated systems,… read more here.
Keywords: nambu goldstone; spontaneous symmetry; goldstone; symmetry breaking ... See more keywords
Goldstone bosons and the Englert-Brout-Higgs mechanism in non-Hermitian theories
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review D"
DOI: 10.1103/physrevd.99.045006
Abstract: In recent work Alexandre, Ellis, Millington and Seynaeve have extended the Goldstone theorem to non-Hermitian Hamiltonians that possess a discrete antilinear symmetry such as $PT$. They restricted their discussion to those realizations of antilinear symmetry… read more here.
Keywords: goldstone bosons; non hermitian; antilinear symmetry; goldstone ... See more keywords
Monitoring and manipulating Higgs and Goldstone modes in a supersolid quantum gas
Sign Up to like & getrecommendations! Published in 2017 at "Science"
DOI: 10.1126/science.aan2608
Abstract: Breaking the symmetry in a supersolid The concept of broken symmetry has relevance across all branches of physics, including particle and condensed matter physics. In many cases, the shape of the potential energy resembles a… read more here.
Keywords: goldstone; modes supersolid; gas; symmetry ... See more keywords