Topology change and quantum physics

Topology Change and Quantum Physics

The role of topology in elementary quantum physics is discussed in detail. It is argued that attributes of classical spatial topology emerge from properties of state vectors with suitably smooth time evolution. Equivalently, they emerge from considerations on the domain of the quantum Hamiltonian, this domain being often specified by boundary conditions in elementary quantum physics. Several ex...

Topology, Quantum Gravity and Particle Physics

It is argued that quantum gravity has an interpretation as a topological quantum field theory provided a certain constraint from the path integral measure is respected. The constraint forces us to couple gauge and matter fields to gravity for space time dimensions different from 3. We then discuss possible models which may be relevant to our universe. E-mail: [email protected]

Topology change in quantum gravity

A particular approach to topology change in quantum gravity is reviewed, showing that several aspects of Stephen's work are intertwined with it in an essential way. Speculations are made on possible implications for the causal set approach to quantum gravity.

A role of topology and quantum information in physics

The role of topology in QIS with physical connection to the noncommutativity,discretization,supersymmetry, entanglement, nonseparability and CP violation in physics is discussed.

Quantum Physics: A Case for Anti-Realism?