Results 101 to 110 of about 264,462 (334)
Coherent vs incoherent transport in holographic strange insulators
Journal of High Energy Physics, 2019 Holographic strange metals are known to have a power law resistivity rising with temperature, which is reminiscent of the strange metal phases in condensed matter systems.
Tomas Andrade, Alexander Krikun
doaj +1 more source
Gravitational Coleman-Weinberg mechanism
Journal of High Energy Physics, 2023 The Coleman-Weinberg mechanism provides a procedure by which a scalar field, which initially has no mass parameters, acquires a mass due to the anomalous nature of scale symmetry.
Clara Álvarez-Luna +3 more
doaj +1 more source
The two-field regime of natural inflation
, 2015 The simplest two-field completion of natural inflation has a regime in which both fields are active and in which its predictions are within the Planck 1-$\sigma$ confidence contour.
Achúcarro, Ana +3 more
core +1 more source
Advanced Functional Materials, EarlyView.In this study, the interplay of dipolar dynamics and ionic charge transport in MOF compounds is investigated. Synthesizing the novel structure CFA‐25 with integrated freely rotating dipolar groups, local and macroscopic effects, including interactions with Cs cations are explored.
Ralph Freund +6 more
wiley +1 more source
Conformal symmetry and its breaking in two dimensional Nearly Anti-de-Sitter space [PDF]
, 2016 We study a two dimensional dilaton gravity system, recently examined by Almheiri and Polchinski, which describes near extremal black holes, or more generally, nearly $AdS_2$ spacetimes.
J. Maldacena, D. Stanford, Zhenbin Yang
semanticscholar +1 more source
Gauge symmetry enhancement in Hamiltonian formalism
, 2003 We study the Hamiltonian structure of the gauge symmetry enhancement in the enlarged CP(N) model coupled with U(2) Chern-Simons term, which contains a free parameter governing explicit symmetry breaking and symmetry enhancement.
A. D’Adda +19 more
core +1 more source
Planck-Scale Effects on Global Symmetries: Cosmology of Pseudo-Goldstone Bosons [PDF]
, 2004 We consider a model with a small explicit breaking of a global symmetry, as suggested by gravitational arguments. Our model has one scalar field transforming under a non-anomalous U(1) symmetry, and coupled lo matter and to gauge bosons.
A. Vilenkin +10 more
core +3 more sources
Advanced Functional Materials, EarlyView.A spin group (SG)‐based mechanism is proposed to realize a single pair of Weyl points. PT‐symmetric nodal lines (NLs) persist under T‐breaking, protected by the combination of SG and P symmetry. When considering spin‐orbit coupling, the SG‐protected NL will split into Weyl points, which will also induce anomalous transport phenomena arising from ...
Shifeng Qian +6 more
wiley +1 more source
Simplest phonons and pseudo-phonons in field theory
European Physical Journal C: Particles and Fields, 2019 We study the emergence of Nambu–Goldstone modes due to broken translation symmetry in field theory. Purely spontaneous breaking yields a massless phonon which develops a mass upon introducing a perturbative explicit breaking.
Daniele Musso
doaj +1 more source
On the effective action for scalars in a general manifold to any loop order
Physics Letters B, 2023 Functional methods and a derivative expansion are employed for laying out a procedure to compute the effective action to any loop order, for scalar fields parametrising an arbitrary Riemannian manifold, while maintaining explicit field-space covariance ...
Rodrigo Alonso, Mia West
doaj +1 more source