Results 11 to 20 of about 2,337,909 (291)

DOMAIN WALLS ON SINGULARITIES [PDF]

Modern Physics Letters A, 2011
We describe domain walls that live on A2 and A3 singularities. The walls are BPS if the singularity is resolved and non-BPS if it is deformed and fibered.
EDI HALYO
core   +4 more sources

Supergravity domain walls [PDF]

Physics Reports, 1996
We review the status of domain walls in N=1 supergravity theories for both the vacuum domain walls as well as dilatonic domain walls. We concentrate on a systematic analysis of the nature of the space-time in such domain wall backgrounds and the special ...
Soleng, Harald H., Cvetic, Mirjam
core   +4 more sources

Phantom domain walls [PDF]

Physical Review D, 2017
We consider a model with two real scalar fields which admits phantom domain wall solutions. We investigate the structure and evolution of these phantom domain walls in an expanding homogeneous and isotropic universe.
Silva, Josinaldo Menezes da, Avelino, P. P., Ferreira, V. M. C., Sousa, L.   +3 more
core   +5 more sources

Supersymmetric domain walls [PDF]

Physical Review D, 2012
We classify the half-supersymmetric ‘‘domain walls,’’ i.e., branes of codimension one, in toroidally compactified IIA/IIB string theory and show to which gauged supergravity theory each of these domain walls belong.
Kleinschmidt, Axel, Bergshoeff, E., Kleinschmidt, Axel,, Kleinschmidt, A., Riccioni, F., Bergshoeff, Eric A., Riccioni, Fabio,, Riccioni, Fabio, Bergshoeff, Eric A.,   +8 more
core   +6 more sources

Domain walls in A 4 flavour models

Journal of High Energy Physics
The spontaneous breaking of an A 4 flavour symmetry, often used to predict leptonic mixing, can lead to the formation of domain walls which can annihilate and generate a stochastic gravitational wave background.
Bowen Fu, Stephen F. King, Luca Marsili, Jessica Turner, Ye-Ling Zhou   +4 more
doaj   +2 more sources

Interconversion of multiferroic domains and domain walls. [PDF]

Nat Commun, 2021
AbstractSystems with long-range order like ferromagnetism or ferroelectricity exhibit uniform, yet differently oriented three-dimensional regions called domains that are separated by two-dimensional topological defects termed domain walls. A change of the ordered state across a domain wall can lead to local non-bulk physical properties such as enhanced
Hassanpour E, Weber MC, Zemp Y, Kuerten L, Bortis A, Tokunaga Y, Taguchi Y, Tokura Y, Cano A, Lottermoser T, Fiebig M.   +10 more
europepmc   +8 more sources

Is There a Domain Wall Problem? [PDF]

Physical Review Letters, 1995
We show that spontaneous breaking of discrete or continuous symmetries does not necessarily imply either symmetry restoration or the thermal production of defects at high temperature (at least up to $T \sim M_{Planck}$). This may imply that there is no domain wall problem. As an example we show how this applies to the Peccei-Quinn scenario.
Dvali, Gia, Senjanovic, Goran
openaire   +3 more sources

Domain walls in QCD [PDF]

Journal of High Energy Physics, 2001
44 Pages (LaTeX JHEP), 8 Figures. Final Version.
Forbes, Michael McNeil, Zhitnitsky, Ariel R.   +1 more
openaire   +2 more sources

Domain wall lattices [PDF]

Physical Review D, 2003
We construct lattices with alternating kinks and anti-kinks. The lattice is shown to be stable in certain models. We consider the forces between kinks and antikinks and find that the lattice dynamics is that of a Toda lattice. Such lattices are exotic metastable states in which the system can get trapped during a phase transition.
Pogosian, Levon, Vachaspati, Tanmay
openaire   +2 more sources

Magneto–Optical Kerr Effect Microscopy Investigation on Permalloy Nanostructures [PDF]

, 2013
This thesis focuses on the investigation of magnetic domains in ultrasmall permalloy (Ni80Fe20) structures down to nanometre size. Magnetic domains and domain walls in nano objects are often observed using a very high resolution and high power microscope
Bin Haji Hujan, Zulzawawi
core   +6 more sources