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@ARTICLE{Bruschi:1037785,
author = {Bruschi, David Edward and Xuereb, André and Zeier, Robert},
title = {{D}eciding finiteness of bosonic dynamics with tunable
interactions},
journal = {Journal of physics / A},
volume = {58},
number = {2},
issn = {1751-8113},
address = {Bristol},
publisher = {IOP Publishing},
reportid = {FZJ-2025-00937},
pages = {025204 -},
year = {2025},
abstract = {We are motivated by factorization of bosonic quantum
dynamics and we study the corresponding Lie algebras, which
can potentially be infinite dimensional. To characterize
such factorization, we identify conditions for these Lie
algebras to be finite dimensional. We consider cases where
each free Hamiltonian term is itself an element of the
generated Lie algebra. In our approach, we develop new tools
to systematically divide skew-hermitian bosonic operators
into appropriate subspaces, and construct specific sequences
of skew-hermitian operators that are used to gauge the
dimensionality of the Lie algebras themselves. The
significance of our result relies on conditions that
constrain only the independently controlled generators in a
particular Hamiltonian, thereby providing an effective
algorithm for verifying the finiteness of the generated Lie
algebra. In addition, our results are tightly connected to
mathematical work where the polynomials of creation and
annihilation operators are known as the Weyl algebra. Our
work paves the way for better understanding factorization of
bosonic dynamics relevant to quantum control and quantum
technology.},
cin = {PGI-12 / PGI-8},
ddc = {530},
cid = {I:(DE-Juel1)PGI-12-20200716 / I:(DE-Juel1)PGI-8-20190808},
pnm = {5214 - Quantum State Preparation and Control (POF4-521) /
Verbundprojekt: German Quantum Computer based on
Superconducting Qubits (GEQCOS) - Teilvorhaben:
Charakterisierung, Kontrolle und Auslese (13N15685) / 5221 -
Advanced Solid-State Qubits and Qubit Systems (POF4-522) /
BMBF 13N16210 - SPINNING – Spin-Photon-basierter
Quantencomputer auf Diamantbasis (BMBF-13N16210) /
PASQuanS2.1 - Programmable Atomic Large-scale Quantum
Simulation 2 - SGA1 (101113690)},
pid = {G:(DE-HGF)POF4-5214 / G:(BMBF)13N15685 /
G:(DE-HGF)POF4-5221 / G:(DE-Juel1)BMBF-13N16210 /
G:(EU-Grant)101113690},
typ = {PUB:(DE-HGF)16},
UT = {WOS:001382139400001},
doi = {10.1088/1751-8121/ad91fc},
url = {https://juser.fz-juelich.de/record/1037785},
}