منابع مشابه
Relating to Twistors and Supertwistors
The conformal symmetry SO(d, 2) of the massless particle in d dimensions, or superconformal symmetry OSp(N |4), SU(2, 2|N), OSp(8|N) of the superparticle in d = 3, 4, 6 dimensions respectively, had been previously understood as the global Lorentz symmetry and supersymmetries of 2T physics in d + 2 dimensions. By utilizing the gauge symmetries of 2T physics, it is shown that the dynamics can be ...
متن کاملOSp supergroup manifolds, superparticles and supertwistors
We construct simple twistor–like actions describing superparticles propagating on a coset superspace OSp(1|4)/SO(1, 3) (containing the D = 4 anti–de–Sitter space as a bosonic subspace), on a supergroup manifold OSp(1|4) and, generically, on OSp(1|2n). Making two different contractions of the superparticle model on the OSp(1|4) supermanifold we get massless superparticles in Minkowski superspace...
متن کاملSupertwistors, Massive Superparticles and Κ-symmetry
We consider a D = 4 two-twistor lagrangian for a massive particle that incorporates the mass-shell condition in an algebraic way, and extend it to a two-supertwistor model with N = 2 supersymmetry and central charge identified with the mass. In the purely super-twistorial picture the two D = 4 supertwistors are coupled through a Wess-Zumino term in their fermionic sector. We demonstrate how the...
متن کاملBaryogenesis, Inflation and Superstrings
We study the conditions for successful Affleck–Dine baryogenesis in generic inflation and supergravity scenarios, finding powerful restrictions on them. String-based SUGRA models are especially interesting since they are surprisingly suitable for the implementation not only of AD baryogenesis but also inflation itself, presenting a nice solution to the η–problem.
متن کاملEffective Superstrings
We generalize the method of quantizing effective strings proposed by Polchinski and Strominger to superstrings. The Ramond-Neveu-Schwarz string is different from the Green-Schwarz string in non-critical dimensions. Both are anomaly-free and Poincare invariant. Some implications of the results are discussed. The formal analogy with 4D (super)gravity is pointed out.
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ژورنال
عنوان ژورنال: Classical and Quantum Gravity
سال: 2006
ISSN: 0264-9381,1361-6382
DOI: 10.1088/0264-9381/23/7/029