4 papers
Operator Algebras and Third Quantization
Yidong Chen, Marius Junge, Nima Lashkari
In quantum gravity, the gravitational path integral involves a sum over topologies, representing the joining and splitting of multiple universes. To account for topology change, on…
Local approximations of global Hamiltonian from inclusion of algebras
Yidong Chen, Nima Lashkari, Kwing Lam Leung
We write down the global Hamiltonian of conformal field theory (CFT) in finite volume in terms of the modular Hamiltonian of the vacuum reduced to a local ball-shaped region, and u…
Modular Intersections, Time Interval Algebras and Emergent AdS
Nima Lashkari, Kwing Lam Leung, Mudassir Moosa +1
We compute the modular flow and conjugation of time interval algebras of conformal Generalized Free Fields (GFF) in -dimensions in vacuum. For non-integer scaling dimensions…
A Lindbladian for exact renormalization of density operators in QFT
Samuel Goldman, Nima Lashkari, Robert G. Leigh
In arXiv:1609.03493, the authors extended the exact renormalization group (ERG) to arbitrary wave-functionals in quantum field theory (QFT). Applying this formalism, we show that t…