2015/11/13 by Boye Buyens, Buyens, Boye, Jutho Haegeman +5
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Lattice (hep-lat) #High Energy Physics - Theory (hep-th) #Quantum Physics (quant-ph) #Strongly Correlated Electrons (cond-mat.str-el) #cond-mat.str-el #hep-lat #hep-th #quant-ph
paper · pdf · doi:10.48550/arxiv.1511.04288
Proceeding of talk presented at the 33rd International Symposium on Lattice Field Theory, 14-18 July 2015, Kobe, Japan; Proceeding of talk presented at The European Physical Society Conference on High Energy Physics, 22-29 July 2015, Vienna, Austria (PoS(EPS-HEP2015)375)
arxiv created 2015/11/13 · arxiv updated 2016/06/27
Over the last decade tensor network states (TNS) have emerged as a powerful tool for the study of quantum many body systems. The matrix product states (MPS) are one particular class of TNS and are used for the simulation of (1+1)-dimensional systems. In this proceeding we use MPS to determine the elementary excitations of the Schwinger model in the presence of an electric background field. We obtain an estimate for the value of the background field where the one-particle excitation with the largest energy becomes unstable and decays into two other elementary particles with smaller energy.