This book focuses on a critical discussion of the status and prospects of current approaches in quantum mechanics and quantum field theory, in particular concer

In this XVII Course of the International School of Cosmology and Gravitation devoted to "ADVANCES IN THE INTERPLAY BETWEEN QUANTUM AND GRAVITY PHYSICS" we have

1946 is the year Bryce DeWitt entered Harvard graduate school. Quantum Gravity was his goal and remained his goal throughout his lifetime until the very end. Th

What is spacetime? General relativity and quantum field theory answer this question in different ways. This collection of essays looks at the problem of uniting

This thesis is devoted to the systematic study of non-local theories that respect Lorentz invariance and are devoid of new, unphysical degrees of freedom. Such