4 papers
Gravitational Background of Alice-Vortices and R7-Branes
Atakan ÃavuÅoÄlu, Mirjam CvetiÄ, Jonathan J. Heckman +2
Codimension-two vortex solutions are important solitonic objects in both quantum field theory and gravity. In this paper, we construct a class of codimension-two Alice-vortex solut…
Unitarity through PT symmetry in Quantum Quadratic Gravity
Jeffrey Kuntz
Theories described by non-Hermitian Hamiltonians are known to possess strictly positive energy eigenvalues and exhibit unitary time evolution if the Hamiltonian is symmetric under…
Primordial Gravitational Waves in Quadratic Gravity
Jisuke Kubo, Jeffrey Kuntz
Quadratic gravity is a fourth-order (in derivatives) theory that can serve as an attractive upgrade to the standard description of gravity provided by General Relativity, thanks to…
Extra Dimensions Beyond the Horizon
Jeffrey Kuntz, Andreas Trautner
We discuss an extra-dimensional braneworld with a 5th dimension compactified on a circle. As a characteristic feature, the warp factor is hyperbolic and separates the hidden and vi…