Results 121 to 130 of about 3,762 (206)

Reflection parity and space-time parity photonic conservation laws in parametric nonlinear optics

Physical Review Research
Conservation laws are some of the most generic and useful concepts in physics. In nonlinear optical parametric processes, conservation of photonic energy, momenta and parity often lead to selection rules, restricting the allowed polarization and ...
Gavriel Lerner, Matan Even Tzur, Ofer Neufeld, Avner Fleischer, Oren Cohen   +4 more
doaj   +1 more source

Radiation field on superspace [PDF]

, 1995
We study the dynamics of multiwormhole configurations within the framework of the Euclidean Polyakov approach to string theory, incorporating a modification to the Hamiltonian which leads to a Planckian probability measure for the Coleman parameters $α$ that allows $\frac{1}{2}α^{2}$ to be interpreted as the energy of the quanta of a radiation field on
openaire   +3 more sources

Conformal boundaries of Minkowski superspace and their super cuts

Journal of High Energy Physics
In this article we carry out a detailed investigation of the geometric nature of the points at infinity of Minkowski superspace. It turns out that there are several sets of points forming the superconformal boundary of Minkowski superspace: on top of a ...
Nicolas Boulanger, Yannick Herfray, Noémie Parrini   +2 more
doaj   +1 more source

Continuous spin superparticle in 4D, N=1 curved superspace

Nuclear Physics B
We present a new particle model that describes the dynamics of a 4D, N=1 continuous spin particle in AdS4 superspace and is a generalization of the continuous-spin superparticle model in flat 4D, N=1 superspace proposed in 2506.19709 [hep-th].
I.L. Buchbinder, S.A. Fedoruk
doaj   +1 more source

4D N=2 supergravity and projective superspace

, 2008
This paper presents a projective superspace formulation for 4D N = 2 matter-coupled supergravity. We first describe a variant superspace realization for the N = 2 Weyl multiplet.
Tartaglino-Mazzucchelli, G., Rocek, M., Kuzenko, S. M., Lindstrom, U.   +3 more
core   +1 more source

Manifest Möbius invariance of massive tree-level three-point amplitudes in pure spinor superspace

Journal of High Energy Physics
Using BRST cohomology properties in pure spinor superspace and identities for OPE brackets of non-free fields, we obtain a new compact nested-bracket representation of massive tree-level three-point open-string amplitudes in which Möbius invariance is ...
Chen Huang, Carlos R. Mafra, Yi-Xiao Tao
doaj   +1 more source

Superspace approaches to $\mathcal{N}=1$ supergravity

, 2022
The superspace formalism for $\mathcal{N}=1$ supergravity in four dimensions is a powerful geometric setting to engineer off-shell supergravity-matter theories, including higher-derivative couplings.
Raptakis, E. S. N., Tartaglino-Mazzucchelli, G., Kuzenko, S. M.   +2 more
core  

The anti-de Sitter supergeometry revisited

Journal of High Energy Physics
In a supergravity framework, the N $$ \mathcal{N} $$ -extended anti-de Sitter (AdS) superspace in four spacetime dimensions, AdS 4 4 N $$ {\textrm{AdS}}^{4\left|4\mathcal{N}\right.} $$ , is a maximally symmetric background that is described by a curved ...
Nowar E. Koning, Sergei M. Kuzenko, Emmanouil S. N. Raptakis   +2 more
doaj   +1 more source

On 5D AdS SUSY and harmonic superspace

, 2007
In our recent paper [1], we presented the differential geometry of five-dimensional N = 1 anti-de Sitter superspace AdS 5|8=SU(2,2|1)/SO(4,1) ×U(1) and developed the harmonic and the projective superspace settings to formulate off-shell supersymmetric ...
Tartaglino-Mazzucchelli, Gabriele, Kuzenko, Sergei   +1 more
core  

Exceptional symmetries in light-cone superspace

Journal of High Energy Physics
We construct maximal supergravity in five-dimensions by ‘oxidizing’ the four-dimensional N $$ \mathcal{N} $$ = 8 theory. The relevant symmetries, the unitary symplectic group USp(8) and the exceptional group E 6, are both presented in light-cone ...
Sudarshan Ananth, Nipun Bhave
doaj   +1 more source