2006
DOI: 10.1007/s10955-006-9143-6
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Propagation of Correlations in Quantum Lattice Systems

Abstract: Abstract. We provide a simple proof of the Lieb-Robinson bound and use it to prove the existence of the dynamics for interactions with polynomial decay. We then use our results to demonstrate that there is an upper bound on the rate at which correlations between observables with separated support can accumulate as a consequence of the dynamics.

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Cited by 193 publications
(277 citation statements)
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“…The proof of this fact is a straightforward consequence of the existence of the infinite volume dynamics (see [19,49,50]) and of the existence of the β, L → ∞ limit of the Gibbs state. In appendix C, we reproduce this proof; that is, we prove that the limit lim β→∞ lim L→∞ J…”
Section: Reconstruction Of the Real-time Kubo Formulamentioning
confidence: 94%
See 1 more Smart Citation
“…The proof of this fact is a straightforward consequence of the existence of the infinite volume dynamics (see [19,49,50]) and of the existence of the β, L → ∞ limit of the Gibbs state. In appendix C, we reproduce this proof; that is, we prove that the limit lim β→∞ lim L→∞ J…”
Section: Reconstruction Of the Real-time Kubo Formulamentioning
confidence: 94%
“…The proof is a simple adaptation of [19,49], the only difference being the choice of boundary conditions (periodic, rather than free). We consider two bounded operators A, B on the fermionic Fock space, even in the fermionic operators, with supports X and Y , respectively, independent of L. We shall think the torus Λ L as a subset of Λ 'centered' at the barycenter of X and Y , to be denoted z 0 .…”
Section: Appendix C: Infinite Volume Dynamicsmentioning
confidence: 99%
“…The measurement statistics of the two observables can show correlations only after the dynamics of the system had enough time to correlate the two regions X and Y (see Ref. [44] for a similar discussion in the context of Hamiltonian dynamics).…”
Section: Theorem 2 (Quasi-locality Of Local Liouvillian Dynamics [6])mentioning
confidence: 99%
“…Outside the space time cone defined by this speed, any signal is typically exponentially suppressed in the distance. The results of Lieb and Robinson, originally derived in the setting of translation invariant 1D spin systems with short range, or exponentially decaying interactions [38] have since been tightened [27,43] and extended to more general graphs [31,47] and to interactions decaying only polynomially with the distance, both, for spin systems [44] and fermionic systems [31] (see also Ref. [45] for a review).…”
Section: Introductionmentioning
confidence: 99%
“…
The maximum speed with which information can propagate in a quantum many-body system directly affects how quickly disparate parts of the system can become correlated [1][2][3][4] and how difficult the system will be to describe numerically [5]. For systems with only short-range interactions, Lieb and Robinson derived a constant-velocity bound that limits correlations to within a linear effective light cone [6].
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mentioning
confidence: 99%