Quantitative propagation of chaos for Lindblad dynamics
- URL: http://arxiv.org/abs/2605.06973v1
- Date: Thu, 07 May 2026 21:43:27 GMT
- Title: Quantitative propagation of chaos for Lindblad dynamics
- Abstract summary: We prove that the $N$-particle dynamics converges, in the sense of quantum relative entropy, to the tensorized solution of the limiting nonlinear equation.<n>We establish explicit bounds of order $1/N$ on the relative entropy between the $N$-particle density operator and the corresponding product state.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: We consider an open quantum system governed $N$-body Lindblad equation and study mean-field limits in this setting. We prove that the $N$-particle dynamics converges, in the sense of quantum relative entropy, to the tensorized solution of the limiting nonlinear equation. More precisely, we establish explicit bounds of order $1/N$ on the relative entropy between the $N$-particle density operator and the corresponding product state, thereby providing a quantitative propagation of chaos.
Related papers
- General Lindblad equation for quarkonium evolution in a quark-gluon plasma [0.0]
We derive and present a more general non-abelian quantum master equation of the Lindblad type.<n>We provide some illustration of the key quantities governing this equation.
arXiv Detail & Related papers (2026-08-15T18:02:07Z) - Emergent Non-Markovian Nonlinear Qubit From Collective Spin Interactions [0.0]
We show that a closed interacting many-body system can generate a controlled non-Markovian quantum channel acting on a reduced nonlinear qubit.<n>We derive the leading finite-$N$ corrections to a nonlinear mean-field limit and show that they correspond to an emergent non-Markovian dephasing process.
arXiv Detail & Related papers (2026-08-07T19:23:40Z) - Unitary discretization of the Koopman-von Neumann equation for quantum simulation of fluid and plasma dynamics [45.88028371034407]
KvN framework embeds the Liouville equation into a Hilbert space with norm-preserving, unitary evolution.<n>Weyl-ordered KvN generator is derived as the unique anti-Hermitian operator symmetrization for real velocity fields.
arXiv Detail & Related papers (2026-05-18T23:27:02Z) - Hysteretic squashed entanglement in many-body quantum systems [42.085941481155295]
Entanglement in many-body quantum systems is distributed across spatial regions.<n>We propose hysteretic entanglement $T_sq$, a conditional entanglement that measures the genuine quantum correlations between two subregions.<n>We show that $T_sq$ can detect genuine quantum correlations across both adjacent and long-range subsystems.
arXiv Detail & Related papers (2026-03-10T17:00:49Z) - Symmetry-protected topology and deconfined solitons in a multi-link $\mathbb{Z}_2$ gauge theory [45.88028371034407]
We study a $mathbbZ$ lattice gauge theory defined on a multi-graph with links that can be visualized as great circles of a spherical shell.<n>We show that this leads to state-dependent tunneling amplitudes underlying a phenomenon analogous to the Peierls instability.<n>By performining a detailed analysis based on matrix product states, we prove that charge deconfinement emerges as a consequence of charge-fractionalization.
arXiv Detail & Related papers (2026-03-02T22:59:25Z) - Quantum simulation of massive Thirring and Gross--Neveu models for arbitrary number of flavors [40.72140849821964]
We consider the massive Thirring and Gross-Neveu models with arbitrary number of fermion flavors, $N_f$, discretized on a spatial one-dimensional lattice of size $L$.<n>We prepare the ground states of both models with excellent fidelity for system sizes up to 20 qubits with $N_f = 1,2,3,4$.<n>Our work is a concrete step towards the quantum simulation of real-time dynamics of large $N_f$ fermionic quantum field theories models.
arXiv Detail & Related papers (2026-02-25T19:00:01Z) - Quantum relative entropy for unravelings of master equations [0.0]
This work explores connections between the quantum relative entropy of two faithful states $,$ and the Kullback-Leibler divergences of classical measures $,$.
arXiv Detail & Related papers (2025-11-28T08:31:14Z) - Weak coupling limit for quantum systems with unbounded weakly commuting system operators [50.24983453990065]
This work is devoted to a rigorous analysis of the weak coupling limit (WCL) for the reduced dynamics of an open infinite-dimensional quantum system interacting with electromagnetic field or a reservoir formed by Fermi or Bose particles.<n>We derive in the weak coupling limit the reservoir statistics, which is determined by whose terms in the multi-point correlation functions of the reservoir are non-zero in the WCL.<n>We prove that the resulting reduced system dynamics converges to unitary dynamics with a modified Hamiltonian which can be interpreted as a Lamb shift to the original Hamiltonian.
arXiv Detail & Related papers (2025-05-13T05:32:34Z) - Spectral gaps of local quantum channels in the weak-dissipation limit [0.0]
We consider the dynamics of generic chaotic quantum many-body systems with no conservation laws, subject to weak bulk dissipation.
The generator of these dissipative dynamics, a quantum channel $mathcalE$, retains a nonzero gap as the dissipation strength $gamma to 0$ if the thermodynamic limit is taken first.
We argue that the gap in the $gamma to 0$ limit can change nonanalytically as one tunes the parameters of the unitary dynamics.
arXiv Detail & Related papers (2024-09-25T18:00:07Z) - Coherence generation with Hamiltonians [44.99833362998488]
We explore methods to generate quantum coherence through unitary evolutions.
This quantity is defined as the maximum derivative of coherence that can be achieved by a Hamiltonian.
We identify the quantum states that lead to the largest coherence derivative induced by the Hamiltonian.
arXiv Detail & Related papers (2024-02-27T15:06:40Z) - Quantum Simulation of Lindbladian Dynamics via Repeated Interactions [0.5097809301149342]
We make use of an approximate correspondence between Lindbladian dynamics and evolution based on Repeated Interaction (RI) CPTP maps.<n>We show that the number of interactions needed to simulate the Liouvillian $etmathcalL$ within error $epsilon$ scales in a weak coupling limit.
arXiv Detail & Related papers (2023-12-08T21:17:16Z) - Observing super-quantum correlations across the exceptional point in a
single, two-level trapped ion [48.7576911714538]
In two-level quantum systems - qubits - unitary dynamics theoretically limit these quantum correlations to $2qrt2$ or 1.5 respectively.
Here, using a dissipative, trapped $40$Ca$+$ ion governed by a two-level, non-Hermitian Hamiltonian, we observe correlation values up to 1.703(4) for the Leggett-Garg parameter $K_3$.
These excesses occur across the exceptional point of the parity-time symmetric Hamiltonian responsible for the qubit's non-unitary, coherent dynamics.
arXiv Detail & Related papers (2023-04-24T19:44:41Z) - Studying chirality imbalance with quantum algorithms [62.997667081978825]
We employ the (1+1) dimensional Nambu-Jona-Lasinio (NJL) model to study the chiral phase structure and chirality charge density of strongly interacting matter.
By performing the Quantum imaginary time evolution (QITE) algorithm, we simulate the (1+1) dimensional NJL model on the lattice at various temperature $T$ and chemical potentials $mu$, $mu_5$.
arXiv Detail & Related papers (2022-10-06T17:12:33Z) - Lindbladian dissipation of strongly-correlated quantum matter [0.9290757451344674]
The Sachdev-Ye-Kitaev Lindbladian is a paradigmatic solvable model of dissipative many-body quantum chaos.
Analytical progress is possible by developing a mean-field theory for the Liouvillian time evolution on the Keldysh contour.
arXiv Detail & Related papers (2021-12-22T18:17:52Z) - Quantitative Propagation of Chaos for SGD in Wide Neural Networks [39.35545193410871]
In this paper, we investigate the limiting behavior of a continuous-time counterpart of the Gradient Descent (SGD)
We show 'propagation of chaos' for the particle system defined by this continuous-time dynamics under different scenarios.
We identify two under which different mean-field limits are obtained, one of them corresponding to an implicitly regularized version of the minimization problem at hand.
arXiv Detail & Related papers (2020-07-13T12:55:21Z)
This list is automatically generated from the titles and abstracts of the papers in this site.
This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.