This book is a treasured documentation of the talks given at the meeting authors have organized. Gordon Semenoff has left a legacy of influence in the theoretical physics community in Canada and globally. His contributions to the field are far-reaching and significant. He is held in the highest esteem by world-renowned. Authors are celebrating his 70th birthday with this conference. All of the speakers who will be contributing to the volume will have been his collaborators or his close colleagues.

Inhalt

Late time acceleration of our Universe caused by the absorption of baby universes.- Comments on graviton detection.- Phantom Fluid Cosmology.- Superinsulators: the discovery of electric confinement in condensed matter systems.- Gravitational Dynamics of Binary Black Holes Near Supermassive Black Holes.- Integrable Holographic Defect CFTs.- Elliptic Calogero-Sutherland model and conformal field theory.- Anomalies in Hadronic B Decays.- Edge states and their cousins in an open SSH model.- Strings from Nambu-Goto to Polyakov and back.- Complexity Equals (Almost) Anything.- Superluminal Signalling in Double Holography.- Operator Products in the SU() Principal Chiral Model.- Puzzles with Negative Mass.- Gravity of String Theory.- Holographic mean field theory and Kondo condensation.- Scale Invariance at the Edge.- The lattice Schwinger model and its quantum simulation.- Two Toy Spin Chain Models of Decoherence.- Gravity versus Noncommutative Gauge Theory: A Double Copy Perspective.- Combinatorial Quantum Gravity: Q it from Bit?.- Cosmology without scalar fields is like quantum field theory without RG flow.- Entanglement of free fermion systems, signal processing and algebraic combinatorics.- Ultralight Dark Matter Stars.- Surprises in Strongly Interacting Many body Conformal Dynamics.