University of Waterloo
200 University Avenue West
Waterloo, Ontario, Canada N2L 3G1
Phone: (519) 888-4567 ext 32215
Fax: (519) 746-8115
The dynamics of open quantum systems, i.e., of systems interacting with an environment, forms the basis of numerous active areas of research. One approach to modeling open quantum system is via a Collision Model in which the environment is itself assumed to be composed of many small quantum systems (ancillas) which interact with the target system sequentially. In this seminar I will discuss how to construct a master equation from a collision models discrete-time dynamics. The approach taken generalizes prior methods which take the continuum limit (i.e. interaction duration δt \to 0) and avoids the need for diverging interaction strengths, g, such that g^2 δt = constant. I will also discuss under what conditions a generic collision model can describe purification and thermalization.
Daniel Grimmer is presenting this talk as a degree milestone in PhD Quantum Information.
The University of Waterloo acknowledges that much of our work takes place on the traditional territory of the Neutral, Anishinaabeg and Haudenosaunee peoples. Our main campus is situated on the Haldimand Tract, the land granted to the Six Nations that includes six miles on each side of the Grand River. Our active work toward reconciliation takes place across our campuses through research, learning, teaching, and community building, and is centralized within our Indigenous Initiatives Office.