Conveners
(DTP) R2-2 Quantum Theory and Gravity | Théorie quantique et gravité (DPT)
- Francesca Vidotto (The University of Western Ontario)
We use the port-based teleportation protocol to study teleportation over infinitesimally small distances, where the vacuum of a quantum field serves as the source of entanglement. We find that the resulting motion is equivalent to a quantum teleportation-induced Brownian motion. Purifying the interactions, from measurements to unitary operations, leads to motion described by Schrodinger’s...
One of the most basic notions in physics is the partitioning of a system into subsystems and the study of correlations among its parts. Operationally, subsystems are distinguished by physically accessible observables which are often implicitly specified relative to some external and/or background structure. In the absence of external relata as in Page-Wootters dynamics, gauge theories, and...
Minimal uncertainty, also known as generalized uncertainty principle, is in effect a modification to the algebra of a quantum system and can be considered a deformed algebra approach to quantum gravity.
I will present the full spacetime effective metric of a Schwarzschild black hole within the minimal uncertainty approach. I will explain how one can quantize the interior, and extend the...
If relativistic gravitation has a quantum description, it must be meaningful to consider a spacetime metric in a genuine quantum superposition. But how might such a superposition be described, and how could observers detect it? I will present a new operational framework for studying “superpositions of spacetimes” via model particle detectors. After presenting the general approach, I show...
We explore the generalized volume complexity of odd-dimensional asymptotically Anti-de Sitter (AdS) Myers-Perry black holes with equal angular momenta following the complexity equals anything proposal. Initially, we determine the codimension-one generalized volume complexity by finding the extreme of the generally covariant volume functional. We show that its late-time growth rate aligns with...
