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Local quantum physics

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The article was published on 1992-01-01 and is currently open access. It has received 2066 citations till now. The article focuses on the topics: Quantum technology & Open quantum system.

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Anyons in an exactly solved model and beyond

TL;DR: In this article, a spin-1/2 system on a honeycomb lattice is studied, where the interactions between nearest neighbors are of XX, YY or ZZ type, depending on the direction of the link; different types of interactions may differ in strength.

Introduction to quantum field theory

R.J. Crewther
TL;DR: In this paper, a reasonably connected outline of quantum field theory is given, from second quantization to the path-integral technique in Euclidean space, where there is an immediate connection with the rules for Feynman diagrams and the partition function of Statistical Mechanics.
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The quantum structure of spacetime at the Planck scale and quantum fields

TL;DR: In this article, uncertainty relations for the different coordinates of spacetime events are proposed, motivated by Heisenberg's principle and by Einstein's theory of classical gravity, and a model of Quantum Spacetime is discussed where the commutation relations exactly implement our uncertainty relations.
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The Infrared Behavior of QCD Green's Functions - Confinement, Dynamical Symmetry Breaking, and Hadrons as Relativistic Bound States

TL;DR: In this paper, a review of recent studies of QCD Green's functions and their applications in hadronic physics are reviewed. But the issues of gauge fixing, BRS invariance and positivity are briefly discussed, and evidence for the violation of positivity by quarks and transverse gluons in the covariant gauge is collected.
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The infrared behaviour of QCD Green's functions ☆: Confinement, dynamical symmetry breaking, and hadrons as relativistic bound states

TL;DR: In this paper, the authors discuss the properties of ground state baryons based on their description as Bethe-Salpeter/Faddeev bound states of quark-diquark correlations in the quantum field theory of confined quarks and gluons.