Gaussian-augmented bosonic matrix-product states: theory and applications

Abstract:We propose and analyze the structure of a family of bosonic quantum many-body states that have the following features: (i) they include all pure Gaussian states and finite-dimensional matrix-product states as subclasses; (ii) their expectation values can be efficiently computed, allowing them to be used, among other things, for variational calculations; (iii) they admit exact parent Hamiltonians expressed as simple functions of the bosonic creation and annihilation operators.

Quantum Physics (quant-ph); Strongly Correlated Electrons (cond-mat.str-el); High Energy Physics - Theory (hep-th)

arXiv:2607.28753 [quant-ph]

(or arXiv:2607.28753v1 [quant-ph] for this version)

https://doi.org/10.48550/arXiv.2607.28753 Focus to learn more arXiv-issued DOI via DataCite (pending registration)

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