Nonstabilizerness in U(1) lattice gauge theory

• URL: http://arxiv.org/abs/2409.01789v2
• Date: Mon, 10 Feb 2025 13:43:10 GMT
• Title: Nonstabilizerness in U(1) lattice gauge theory
• Authors: Pedro R. Nicácio Falcão, Poetri Sonya Tarabunga, Martina Frau, Emanuele Tirrito, Jakub Zakrzewski, Marcello Dalmonte,
• Abstract summary: Nonstabilizerness is a fundamental quantum resource that quantifies state complexity within the framework of quantum computing.<n>We show how nonstabilizerness is always extensive with volume, and has no direct relation to the presence of critical points.<n>Our results indicate that error-corrected simulations of lattice gauge theories close to the limit continuum have similar computational costs to those at finite correlation length.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: We present a thorough investigation of nonstabilizerness - a fundamental quantum resource that quantifies state complexity within the framework of quantum computing - in a one-dimensional U(1) lattice gauge theory. We show how nonstabilizerness is always extensive with volume, and has no direct relation to the presence of critical points. However, its derivatives typically display discontinuities across the latter: This indicates that nonstabilizerness is strongly sensitive to criticality, but in a manner that is very different from entanglement (that, typically, is maximal at the critical point). Our results indicate that error-corrected simulations of lattice gauge theories close to the continuum limit have similar computational costs to those at finite correlation length and provide rigorous lower bounds for quantum resources of such quantum computations.

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