Information propagation in long-range quantum many-body systems
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Information propagation in long-range quantum many-body systems. / Lemm, Marius; Rubiliani, Carla; Sigal, Israel Michael; Zhang, Jingxuan.
I: Physical Review A, Bind 108, Nr. 6, L060401, 2023.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Information propagation in long-range quantum many-body systems
AU - Lemm, Marius
AU - Rubiliani, Carla
AU - Sigal, Israel Michael
AU - Zhang, Jingxuan
N1 - Publisher Copyright: © 2023 American Physical Society.
PY - 2023
Y1 - 2023
N2 - We study general lattice bosons with long-range hopping and long-range interactions decaying as |x-y|-α with α∈(d+2,2d+1). We find a linear light cone for the information propagation starting from suitable initial states. We apply these bounds to estimate the minimal time needed for quantum messaging, for the propagation of quantum correlations, and for quantum state control. The proofs are based on the ASTLO method (adiabatic spacetime localization observables). Our results pose previously unforeseen limitations on the applicability of fast-transfer and entanglement-generation protocols developed for breaking linear light cones in long-range and/or bosonic systems.
AB - We study general lattice bosons with long-range hopping and long-range interactions decaying as |x-y|-α with α∈(d+2,2d+1). We find a linear light cone for the information propagation starting from suitable initial states. We apply these bounds to estimate the minimal time needed for quantum messaging, for the propagation of quantum correlations, and for quantum state control. The proofs are based on the ASTLO method (adiabatic spacetime localization observables). Our results pose previously unforeseen limitations on the applicability of fast-transfer and entanglement-generation protocols developed for breaking linear light cones in long-range and/or bosonic systems.
U2 - 10.1103/PhysRevA.108.L060401
DO - 10.1103/PhysRevA.108.L060401
M3 - Journal article
AN - SCOPUS:85175602520
VL - 108
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
SN - 1050-2947
IS - 6
M1 - L060401
ER -
ID: 389667306