126 citations · 367 across the 7 of their papers we have counts for
7 papers
Dynamical String Tension in String Theory with Spacetime Weyl Invariance
Itzhak Bars, Paul Steinhardt, Neil Turok
The fundamental string length, which is an essential part of string theory, explicitly breaks scale invariance. However, in field theory we demonstrated recently that the gravitati…
Lifting M-theory to Two-Time Physics
I. Bars, C. Deliduman, D. Minic
M-theory has different global supersymmetry structures in its various dual incarnations, as characterized by the M-algebra in 11D, the type IIA, type-IIB, heterotic, type-I extende…
Supersymmetric Two-Time Physics
I. Bars, C. Deliduman, D. Minic
We construct an Sp(2,R) gauge invariant particle action which possesses manifest space-time SO(d,2) symmetry, global supersymmetry and kappa supersymmetry. The global and local sup…
Gauged Duality, Conformal Symmetry, and Spacetime with Two Times
I. Bars, C. Deliduman, O. Andreev
We construct a duality between several simple physical systems by showing that they are different aspects of the same quantum theory. Examples include the free relativistic massles…
Gauge principles for multi-superparticles
I. Bars, C. Deliduman
We formulate new gauge principles for n supersymmetric particles in a worldline formalism with N supersymmetries. The models provide realizations of the more general supersymmetrie…
Exact Effective Action and Spacetime Geometry in Gauged WZW Models
I. Bars, K. Sfetsos
We present an effective quantum action for the gauged WZW model . It is conjectured that it is valid to all orders of the central extension on the basis that…