An M/string-theory origin for the six-dimensional Salam-Sezgin chiral gauged super-gravity is obtained, by embedding it as a consistent Pauli-type reduction of type I or het-erotic supergravity on the non-compact hyperboloid H 2,2. We can also obtain embeddings of larger, non-chiral, gauged supergravities in six dimensions, whose consistent truncation yields the Salam-Sezgin theory. The lift of...

In 1973 two Salam protégés (Derek Capper and the author) discovered that the conformal invariance under Weyl rescalings of the metric tensor gμν(x) → Ω(x)gμν(x) displayed by classical massless field systems in interaction with gravity no longer survives in the quantum theory. Since then these Weyl anomalies have found a variety of applications in black hole physics, cosmology, string theory and...

We analyse symmetry breaking in the Weinberg-Salam model paying particular attention to the underlying geometry of the theory. In this context we find two natural metrics upon the vacuum manifold: an isotropic metric associated with the scalar sector, and a squashed metric associated with the gauge sector. Physically, the interplay between these metrics gives rise to many of the non-perturbativ...

The origin of chirality, closely related to the evolution of life on the earth, has long been debated. In 1991, Abdus Salam suggested a novel approach to achieve biomolecular homochirality by a phase transition. In his subsequent publication, he predicted that this phase transition could eventually change D-amino acids to L-amino acids as Cα -H bond would break and H atom became a superconducti...

Molecular QED of coherent and incoherent sumfrequency and second-harmonic generation in chiral liquids in the presence of a static electric field P. Fischer & A. Salam To cite this article: P. Fischer & A. Salam (2010) Molecular QED of coherent and incoherent sum-frequency and second-harmonic generation in chiral liquids in the presence of a static electric field, Molecular Physics, 108:14, 185...

Perkembangan otak anak usia dini mengalami peningkatan sebesar 80%, seperti halnya teori piaget bahwa adalah kritis. Konsep belajar menyenangkan dengan asas bermain cara belajar. Kebijakan merdeka pada pendidikan menjadi fenomena yang gencar-gencarnya diterapkan di Lembaga Pendidikan Anak Usia Dini. Penelitian ini bertujuan untuk mengkaji konsep dan pencapaian perkembangan kognitif anak. Metode...