Generalising Unitary Time Evolution

In this third Quantum Interaction (QI) meeting it is time to examine our failures. One of the weakest elements of QI as a field, arises in its continuing lack of models displaying proper evolutionary dynamics. This paper presents an overview of the modern generalised approach to the derivation of time evolution equations in physics, showing how the notion of symmetry is essential to the extraction of operators in quantum theory. The form that symmetry might take in non-physical models is explored, with a number of viable avenues identified. 1 Quantum Interactions are not Evolving As a field Quantum Interaction (QI) has progressed well in recent years [10, 8]. It is clear that something is to be gained from applying the quantum formalism to the description of systems not generally considered physical [1, 4, 14, 16, 23]. However, despite this initial promise, there are many elements of quantum theory that have yet to be properly applied within this framework. Perhaps most notably, it ...

• Type: Conference
• Year: 2009
• Where: QI
• Authors: Kirsty Kitto, Peter Bruza, Laurianne Sitbon
• Keywords: Physics, QI 2009, Quantum, Quantum Interaction, Time Evolution