4 papers
What is a Gravitational Path Integral? {\it or} Gravitational Path Integrals as Fluctuating Gravito-Hydrodynamics
T. Banks
We show how Gravitational Path Integral formulae for various quantities that have been computed in the literature, follow from a few coarse grained hydrodynamic assumptions about t…
Finite Entropy Implies Finite Dimension in Quantum Gravity
T. Banks
Quantum Field Theory (QFT) introduced us to the notion that a causal diamond in space-time corresponded to a subsystem of a quantum mechanical system defined on the global space-ti…
Note on Type Algebras in String Theory and Bulk Causal Diamonds
T. Banks
We argue that the Leutheusser-Liu procedure of isolating a von Neumann algebra in the limit of string theories, leads to the algebra of relativistic fermion fields on…
Dumbbell Fermions and Spin Models on Honeycomb Lattices
T. Banks
We express Kitaev's exact solution of spin models on the honeycomb lattice as a special case of a higher dimensional duality between staggered Majorana fermions and Pauli spins. Ge…