Zero Energy Configurations in General Relativity
Zero Energy of Plane-Waves for ELKOs
Zero temperature black holes and the failure of semi-classical analysis
Zero temperature black holes in semiclassical gravity
Zero-point length, extra-dimensions and string T-duality
Zero-size objects in Riemann-Cartan spacetime
zeta-function regularization and one-loop renormalization of field fluctuations in curved space-times
Zeta-Regularization of the O(N) Non-Linear Sigma Model in D dimensions
Zitterbewegung and gravitational Berry phase
Zitterbewegung of a Model Universe
ZM theory I: Introduction and Lorentz covariance
ZM theory II: Hamilton's and Lagrange's equations of motion
ZM theory III: Classical oscillators and semi-classical Bohr-Sommerfeld quantization
ZM theory IV: Introduction to quantum concepts, Klein-Gordon and Dirac's equations
ZM theory V: Lorentz force equation and the vector potential
Znajek-Damour Horizon Boundary Conditions with Born-Infeld Electrodynamics
Zoom & Whirl: Eccentric equatorial orbits around spinning black holes and their evolution under gravitational radiation reaction
Zoom-Whirl Orbits in Black Hole Binaries
`c' is the speed of light, isn't it?
`Faster than light' photons and rotating black holes