The continuum limit of quantum gravity at first order in perturbation theory
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DOI: 10.1007/jhep06(2020)138
Abstract: The Wilsonian renormalization group (RG) properties of the conformal factor of the metric are profoundly altered by the fact that it has a wrong-sign kinetic term. The result is a novel perturbative continuum limit for… read more here.
Keywords: continuum limit; limit; first order; coefficient functions ... See more keywords
Control limit on quantum state preparation under decoherence
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DOI: 10.1103/physreva.99.052347
Abstract: Quantum information technologies require careful control for generating and preserving a desired target quantum state. The biggest practical obstacle is, of course, decoherence. Therefore, the reachability analysis, which in our scenario aims to estimate the… read more here.
Keywords: quantum state; control; decoherence; state ... See more keywords
Frame dependence of the nonrelativistic limit of quantum fields
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DOI: 10.1103/physrevd.107.085016
Abstract: We study the non-relativistic limit of quantum fields for an inertial and a non-inertial observer. We show that non-relativistic particle states appear as a superposition of relativistic and non-relativistic particles in different frames. Hence, the… read more here.
Keywords: non relativistic; limit; frame; limit quantum ... See more keywords
Causal Limit on Quantum Communication.
Sign Up to like & getrecommendations! Published in 2019 at "Physical review letters"
DOI: 10.1103/physrevlett.123.150502
Abstract: The capacity of a channel is known to be equivalent to the highest rate at which it can generate entanglement. Analogous to entanglement, the notion of a causality measure characterizes the temporal aspect of quantum… read more here.
Keywords: quantum communication; causal limit; capacity; limit quantum ... See more keywords