title: Real-space decoupling transformation for quantum many-body systems.
abstract: We propose a real-space renormalization group method to explicitly decouple into independent components a many-body system that, as in the phenomenon of spin-charge separation, exhibits separation of degrees of freedom at low energies. Our approach produces a branching holographic description of such systems that opens the path to the efficient simulation of the most entangled phases of quantum matter, such as those whose ground state violates a boundary law for entanglement entropy. As in the coarse-graining transformation of Vidal [Phys. Rev. Lett. 99, 220405 (2007).
authors.affiliation: California Institute of Technology, Pasadena, California 91125, USA.
authors.forename: G
authors.initials: G
authors.lastname: Evenbly
authors.affiliation: Perimeter Institute for Theoretical Physics, Waterloo, Ontario N2L 2Y5, Canada.
authors.forename: G
authors.initials: G
authors.lastname: Vidal