<div class="csl-bib-body">
<div class="csl-entry">Svozil, K. (2026). From Unitarity to Irreversibility: The Role of Infinite Tensor Products and Nested Wigner’s Friends. <i>Foundations of Physics</i>, <i>56</i>(1), Article 4. https://doi.org/10.1007/s10701-025-00903-9</div>
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dc.identifier.issn
0015-9018
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/227701
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dc.description.abstract
The transition from unitary, reversible von Neumann-Everett quantum processes to non-unitary, irreversible processes and measurements is explored through infinite tensor products interpreted as nested, chained, or iterated Wigner’s friend scenarios. Infinite tensor products can disrupt unitary equivalence through sectorization and factorization, drawing parallels to concepts from real analysis, recursive mathematics, and statistical physics.
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dc.description.sponsorship
FWF - Österr. Wissenschaftsfonds
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dc.language.iso
en
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dc.publisher
SPRINGER
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dc.relation.ispartof
Foundations of Physics
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dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
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dc.subject
Infinite tensor products
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dc.subject
Irreversibility
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dc.subject
Nested Wigner’s friend
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dc.subject
Quantum decoherence
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dc.subject
Quantum entanglement
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dc.subject
Quantum measurement
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dc.subject
Von Neumann algebras
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dc.title
From Unitarity to Irreversibility: The Role of Infinite Tensor Products and Nested Wigner’s Friends
