Enhancing the effect of quantum many-body scars on dynamics by minimizing the effective dimension
Shane Dooley, Graham Kells
Abstract
Quantum many-body scarring is believed to be the mechanism behind long-lived coherent oscillations in interacting Rydberg atom chains. These persistent oscillations are due to the large overlap of the many-body scars with certain initial states. We show that the ``effective dimension'' is a useful measure for identifying nonthermalizing initial states in many-body scarred systems. By minimising the effective dimension we find physically reasonable initial states of the Rydberg chain that lead to more pronounced and longer-lived oscillations, accentuating the effect of the many-body scars on the dynamics.
Topics & Concepts
Rydberg atomQuantumDimension (graph theory)ScarsRydberg formulaMeasure (data warehouse)PhysicsAtom (system on chip)Statistical physicsQuantum mechanicsMathematicsComputer scienceMedicineSurgeryPure mathematicsIonizationDatabaseIonEmbedded systemCold Atom Physics and Bose-Einstein CondensatesQuantum many-body systemsQuantum, superfluid, helium dynamics