2014
DOI: 10.1142/s0217751x14501632
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On relativistic entanglement and localization of particles and on their comparison with the nonrelativistic theory

Abstract: We make a critical comparison of relativistic and non-relativistic classical and quantum mechanics of particles in inertial frames as well of the open problems in particle localization at both levels. The solution of the problems of the relativistic center of mass, of the clock synchronization convention needed to define relativistic 3-spaces and of the elimination of the relative times in the relativistic bound states leads to a description with a decoupled non-local (non-measurable) relativistic center of ma… Show more

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Cited by 7 publications
(14 citation statements)
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“…But in quantum theory, you need to ensure that both the dynamical equations (for the operators in Heisenberg picture, say) as well as the description of quantum states in the Hilbert space are relativistically invariant. 12 The first requirement -viz. relativistic invariance of dynamical equationscan be ensured by using a relativistically invariant action or Hamiltonian; but the second requirement does not have a direct analogue in classical relativistic mechanics.…”
Section: Preview and Summarymentioning
confidence: 99%
“…But in quantum theory, you need to ensure that both the dynamical equations (for the operators in Heisenberg picture, say) as well as the description of quantum states in the Hilbert space are relativistically invariant. 12 The first requirement -viz. relativistic invariance of dynamical equationscan be ensured by using a relativistically invariant action or Hamiltonian; but the second requirement does not have a direct analogue in classical relativistic mechanics.…”
Section: Preview and Summarymentioning
confidence: 99%
“…Besides this spatial non-separability there is the non-measurability of the decoupled external non-covariant canonical center of mass due to its nonlocal nature. See [55] for more details on this point and for the indications from non-relativistic quantum mechanics that also the localization of the Newton center of mass is an open problem.…”
Section: Discussionmentioning
confidence: 99%
“…For a recent insight see Ref. [22,34,35]. Within the framework of the quantized scalar field in Minkowski space the center of mass operator is defined according to (60) in terms of the position operators on a given 3-surface Σ in spacetime.…”
Section: Wave Packet Statesmentioning
confidence: 99%