Details
| Original language | English |
|---|---|
| Article number | 14859 |
| Pages (from-to) | 1141-1146 |
| Number of pages | 6 |
| Journal | Nature physics |
| Volume | 21 |
| Issue number | 7 |
| Early online date | 27 May 2025 |
| Publication status | Published - Jul 2025 |
Abstract
Universal embezzlers are bipartite quantum systems from which any entangled state may be extracted to arbitrary precision using local operations while perturbing the system arbitrarily little. Here we show that a universal embezzler can be created by bipartitioning any local, translation-invariant, critical free-fermionic many-body system on a one-dimensional lattice. The same property holds for locally interacting spin chains that are dual to the critical fermionic models by the Jordan–Wigner transformation. Furthermore, for any finite error and any targeted entangled state, a finite length of the chain is sufficient to embezzle said state within the given error. Hence, universal embezzlement is not restricted to the thermodynamic limit. As well as establishing the ubiquity of universal embezzlers in many-body physics, on a technical level, our main result establishes that the half-chain observable algebras associated with ground-state sectors of the given models are type III1 factors.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- General Physics and Astronomy
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In: Nature physics, Vol. 21, No. 7, 14859, 07.2025, p. 1141-1146.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Critical fermions are universal embezzlers
AU - van Luijk, Lauritz
AU - Stottmeister, Alexander
AU - Wilming, Henrik
N1 - Publisher Copyright: © The Author(s) 2025.
PY - 2025/7
Y1 - 2025/7
N2 - Universal embezzlers are bipartite quantum systems from which any entangled state may be extracted to arbitrary precision using local operations while perturbing the system arbitrarily little. Here we show that a universal embezzler can be created by bipartitioning any local, translation-invariant, critical free-fermionic many-body system on a one-dimensional lattice. The same property holds for locally interacting spin chains that are dual to the critical fermionic models by the Jordan–Wigner transformation. Furthermore, for any finite error and any targeted entangled state, a finite length of the chain is sufficient to embezzle said state within the given error. Hence, universal embezzlement is not restricted to the thermodynamic limit. As well as establishing the ubiquity of universal embezzlers in many-body physics, on a technical level, our main result establishes that the half-chain observable algebras associated with ground-state sectors of the given models are type III1 factors.
AB - Universal embezzlers are bipartite quantum systems from which any entangled state may be extracted to arbitrary precision using local operations while perturbing the system arbitrarily little. Here we show that a universal embezzler can be created by bipartitioning any local, translation-invariant, critical free-fermionic many-body system on a one-dimensional lattice. The same property holds for locally interacting spin chains that are dual to the critical fermionic models by the Jordan–Wigner transformation. Furthermore, for any finite error and any targeted entangled state, a finite length of the chain is sufficient to embezzle said state within the given error. Hence, universal embezzlement is not restricted to the thermodynamic limit. As well as establishing the ubiquity of universal embezzlers in many-body physics, on a technical level, our main result establishes that the half-chain observable algebras associated with ground-state sectors of the given models are type III1 factors.
UR - http://www.scopus.com/inward/record.url?scp=105006720929&partnerID=8YFLogxK
U2 - 10.1038/s41567-025-02921-w
DO - 10.1038/s41567-025-02921-w
M3 - Article
AN - SCOPUS:105006720929
VL - 21
SP - 1141
EP - 1146
JO - Nature physics
JF - Nature physics
SN - 1745-2473
IS - 7
M1 - 14859
ER -