id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
work_bj3743opfngqtgyiokcrvyrpja	Hans Halvorson	No Place for Particles in Relativistic Quantum Theories?	2002	30	.pdf	application/pdf	12462	1035	66	to support a sound argument against the possibility of a relativistic quantum mechanics of localizable particles. relativistic quantum mechanics of "unsharply" localized particles (Theorem 2). The following conditions should hold for any localization system—either relativistic or non-relativistic—that describes a single particle. In the case of time translations, the covariance condition entails that the particle has unitary dynamics. reasonable condition for relativistic theories, Malament's theorem requires only to hold for any relativistic, quantum-mechanical theory of particles. Dickson (1997) argues that a 'quantum' theory does not need a position operator (equivalently, a system of localizing projections) in order to treat position as Newton-Wigner position operator as a localizing observable) and in which Malament's microcausality assumption fails. there is another difficulty with the argument against any relativistic quantum mechanics of (localizable) particles: Malament's theorem makes tacit use of specific that relativistic quantum field theory might permit an ontology of localizable particles.	./cache/work_bj3743opfngqtgyiokcrvyrpja.pdf	./txt/work_bj3743opfngqtgyiokcrvyrpja.txt