Matches in SemOpenAlex for { <https://semopenalex.org/work/W4206052869> ?p ?o ?g. }
Showing items 1 to 78 of
78
with 100 items per page.
- W4206052869 abstract "Recently, in the context of Relativistic Quantum Information Theory (RQI) of massive spin-1/2 particles, it has been suggested that it is impossible to perform a momentum-independent spin measurement, showing the inadequacy of the spin reduced density matrix as a legitimate information resource. This is because there is an unavoidable ambiguity in the definition of the spin of a moving particle. In this paper, by introducing a vector bundle theoretic way to view the single-particle state space, we try to rule out this ambiguity. The discrete degree of freedom of the resulting representation space contains information about the Pauli–Lubanski four-vector of the particle instead of the ambiguous spin. Comparing this representation with the standard one used in the RQI literature, we show that the discrete degree of freedom of the standard representation space attains the meaning of the Newton–Wigner spin. In addition, using this viewpoint, we give a mathematical proof of why the spin reduced density matrix is meaningless, which is stronger than the previous claims in that it asserts that the matrix is void of any meaning at all, not just in terms of the impossibility of measurement or Lorentz non-covariance. We give a way (which turns out to be the only way) to modify it to obtain the Pauli–Lubanski reduced density matrix, which is covariant under Lorentz transformations." @default.
- W4206052869 created "2022-01-25" @default.
- W4206052869 creator A5005204333 @default.
- W4206052869 date "2022-01-01" @default.
- W4206052869 modified "2023-09-23" @default.
- W4206052869 title "Relativistic massive particle with spin-1/2: A vector bundle point of view" @default.
- W4206052869 cites W1596777120 @default.
- W4206052869 cites W1979857637 @default.
- W4206052869 cites W1999679144 @default.
- W4206052869 cites W2017654111 @default.
- W4206052869 cites W2054112569 @default.
- W4206052869 cites W2069034614 @default.
- W4206052869 cites W2078758513 @default.
- W4206052869 cites W2098500430 @default.
- W4206052869 cites W2142131882 @default.
- W4206052869 cites W2512831142 @default.
- W4206052869 cites W2562358029 @default.
- W4206052869 cites W2758288115 @default.
- W4206052869 cites W2888762024 @default.
- W4206052869 cites W2916290275 @default.
- W4206052869 cites W3092060539 @default.
- W4206052869 cites W3099034570 @default.
- W4206052869 cites W3099132843 @default.
- W4206052869 doi "https://doi.org/10.1063/5.0064409" @default.
- W4206052869 hasPublicationYear "2022" @default.
- W4206052869 type Work @default.
- W4206052869 citedByCount "6" @default.
- W4206052869 countsByYear W42060528692022 @default.
- W4206052869 countsByYear W42060528692023 @default.
- W4206052869 crossrefType "journal-article" @default.
- W4206052869 hasAuthorship W4206052869A5005204333 @default.
- W4206052869 hasBestOaLocation W42060528692 @default.
- W4206052869 hasConcept C121332964 @default.
- W4206052869 hasConcept C174195342 @default.
- W4206052869 hasConcept C180347388 @default.
- W4206052869 hasConcept C33332235 @default.
- W4206052869 hasConcept C33923547 @default.
- W4206052869 hasConcept C42704618 @default.
- W4206052869 hasConcept C5667645 @default.
- W4206052869 hasConcept C56911000 @default.
- W4206052869 hasConcept C62520636 @default.
- W4206052869 hasConcept C62583473 @default.
- W4206052869 hasConcept C71993908 @default.
- W4206052869 hasConcept C84114770 @default.
- W4206052869 hasConcept C97355855 @default.
- W4206052869 hasConceptScore W4206052869C121332964 @default.
- W4206052869 hasConceptScore W4206052869C174195342 @default.
- W4206052869 hasConceptScore W4206052869C180347388 @default.
- W4206052869 hasConceptScore W4206052869C33332235 @default.
- W4206052869 hasConceptScore W4206052869C33923547 @default.
- W4206052869 hasConceptScore W4206052869C42704618 @default.
- W4206052869 hasConceptScore W4206052869C5667645 @default.
- W4206052869 hasConceptScore W4206052869C56911000 @default.
- W4206052869 hasConceptScore W4206052869C62520636 @default.
- W4206052869 hasConceptScore W4206052869C62583473 @default.
- W4206052869 hasConceptScore W4206052869C71993908 @default.
- W4206052869 hasConceptScore W4206052869C84114770 @default.
- W4206052869 hasConceptScore W4206052869C97355855 @default.
- W4206052869 hasFunder F4320322120 @default.
- W4206052869 hasIssue "1" @default.
- W4206052869 hasLocation W42060528691 @default.
- W4206052869 hasLocation W42060528692 @default.
- W4206052869 hasOpenAccess W4206052869 @default.
- W4206052869 hasPrimaryLocation W42060528691 @default.
- W4206052869 hasRelatedWork W1969919267 @default.
- W4206052869 hasRelatedWork W2019367444 @default.
- W4206052869 hasRelatedWork W2026498734 @default.
- W4206052869 hasRelatedWork W2033749408 @default.
- W4206052869 hasRelatedWork W2081158881 @default.
- W4206052869 hasRelatedWork W2090017364 @default.
- W4206052869 hasRelatedWork W3103455940 @default.
- W4206052869 hasRelatedWork W3104320472 @default.
- W4206052869 hasRelatedWork W4303195664 @default.
- W4206052869 hasRelatedWork W4381620622 @default.
- W4206052869 hasVolume "63" @default.
- W4206052869 isParatext "false" @default.
- W4206052869 isRetracted "false" @default.
- W4206052869 workType "article" @default.