Results 31 to 40 of about 239,856 (283)

Higher Structures in M-Theory [PDF]

open access: yes, 2019
The key open problem of string theory remains its non-perturbative completion to M-theory. A decisive hint to its inner workings comes from numerous appearances of higher structures in the limits of M-theory that are already understood, such as higher ...
Akrami Y.   +31 more
core   +2 more sources

String completion of an SU(3)c⊗SU(3)L⊗U(1)X electroweak model

open access: yesPhysics Letters B, 2016
The extended electroweak SU(3)c⊗SU(3)L⊗U(1)X symmetry framework “explaining” the number of fermion families is revisited. While 331-based schemes can not easily be unified within the conventional field theory sense, we show how to do it within an ...
Andrea Addazi   +2 more
doaj   +1 more source

Stokes Phenomena and Non-perturbative Completion in the Multi-cut Two-matrix Models

open access: yes, 2011
The Stokes multipliers in the matrix models are invariants in the string-theory moduli space and related to the D-instanton chemical potentials. They not only represent non-perturbative information but also play an important role in connecting various ...
Chan, Chuan-Tsung   +2 more
core   +1 more source

String Cosmology - Large-Field Inflation in String Theory [PDF]

open access: yes, 2014
This is a short review of string cosmology. We wish to connect string-scale physics as closely as possible to observables accessible to current or near-future experiments.
Westphal, Alexander
core   +2 more sources

Towards complete string effective actions beyond leading order [PDF]

open access: yesFortschritte der Physik, 2004
AbstractWe review the current knowledge of higher‐derivative terms in closed‐string effective actions, the various approaches that have been used to obtain them and their applications.
Peeters, Kasper   +2 more
openaire   +4 more sources

Resurgent Supersymmetry and String Theory

open access: yes, 2015
We study a realization of accidental supersymmetry in type IIB string theory as a proof-of-principle of the mechanism and as a prototype of the strong sector present in resurgent supersymmetry, a warped UV-completion of natural supersymmetry.
Brust, Christopher
core   +1 more source

Large-density field theory, viscosity, and "$2k_F$" singularities from string duals [PDF]

open access: yes, 2012
We analyze systems where an effective large-N expansion arises naturally in gauge theories without a large number of colors: a sufficiently large charge density alone can produce a perturbative string ('tHooft) expansion.
Aharony O   +39 more
core   +2 more sources

Exercise Interventions in Children, Adolescents and Young Adults With Paediatric Bone Tumours—A Systematic Review

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Bone tumours present significant challenges for affected patients, as multimodal therapy often leads to prolonged physical limitations. This is particularly critical during childhood and adolescence, as it can negatively impact physiological development and psychosocial resilience.
Jennifer Queisser   +5 more
wiley   +1 more source

BPS Alice strings

open access: yesJournal of High Energy Physics, 2017
When a charged particle encircles around an Alice string, it changes the sign of the electric charge. In this paper we find a BPS-saturated Alice string in U(1)×SO(3) gauge theory with charged complex scalar fields belonging to the vector representation.
Chandrasekhar Chatterjee, Muneto Nitta
doaj   +1 more source

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