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Efficient Simulation of Dynamics in Two-Dimensional Quantum Spin Systems with Isometric Tensor Networks
Sheng-Hsuan Lin, Michael Zaletel, Frank Pollmann
We investigate the computational power of the recently introduced class of isometric tensor network states (isoTNSs), which generalizes the isometric conditions of the canonical fo…
Operator backflow and the classical simulation of quantum transport
C. W. von Keyserlingk, Frank Pollmann, Tibor Rakovszky
Tensor product states have proved extremely powerful for simulating the area-law entangled states of many-body systems, such as the ground states of gapped Hamiltonians in one dime…
Characterizing fractional topological phases of lattice bosons near the first Mott lobe
Julian Boesl, Rohit Dilip, Frank Pollmann +1
The Bose-Hubbard model subjected to an effective magnetic field hosts a plethora of phases with different topological orders when tuning the chemical potential. Using the density m…
Dynamics in Systems with Modulated Symmetries
Pablo Sala, Julius Lehmann, Tibor Rakovszky +1
We extend the notions of multipole and subsystem symmetries to more general {\it spatially modulated} symmetries. We uncover two instances with exponential and (quasi)-periodic mod…
Dynamics of Negativity of a Wannier-Stark Many-Body Localized System Coupled to a Bath
Elisabeth Wybo, Michael Knap, Frank Pollmann
An interacting system subjected to a strong linear potential can host a many-body localized (MBL) phase when being slightly perturbed. This so-called Wannier-Stark or `tilted-field…
Methods for simulating string-net states and anyons on a digital quantum computer
Yu-Jie Liu, Kirill Shtengel, Adam Smith +1
Finding physical realizations of topologically ordered states in experimental settings, from condensed matter to artificial quantum systems, has been the main challenge en route to…