Quantum law of large numbers in the strong operator topology of ℓp

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Let 1⩽p⩽21\leqslant p\leqslant 2. Let A ⁣:Ω→L(ℓp)A\colon\Omega\to\mathcal{L}(\ell_p) be a generator of a semigroup eAte^{At} such that ∥A∥p\lVert A\rVert_p lies in a bounded ball. Let A1,A2,…A_1,A_2,\ldots be independent identically distributed generators whose distribution coincides with that of AA. For t⩾0t\geqslant 0, consider the compositions eA1t/n⋯eAnt/ne^{A_1t/n}\cdots e^{A_nt/n}.

Quantum law of large numbers. Under these assumptions, eA1t/n⋯eAnt/ne^{A_1t/n}\cdots e^{A_nt/n} converges in probability in the strong operator topology of ℓp\ell_p to eE⁡Ate^{\operatorname{\mathbb{E}}At}, uniformly for tt in every compact segment.

The theorem preceding this conjecture establishes the analogous convergence in the strong operator topology of ℓ2\ell_2. The conjecture asks whether the same law of large numbers holds in the stronger target topology of ℓp\ell_p.

References

Primary source

S. Dzhenzher and V. Sakbaev, “Quantum law of large numbers for Banach spaces”, arXiv:2410.07417 (2024).

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