Local Equilibrium States in Quantum Field Theory in Curved
... order to x the values of the renormalization parameters that appear even in free theories in QFT in curved spacetime. However, as was observed in [BS07], the concept of LTE can be used to x some of these numbers. Namely, as we have mentioned before, there exist interesting examples for LTE for the ...
... order to x the values of the renormalization parameters that appear even in free theories in QFT in curved spacetime. However, as was observed in [BS07], the concept of LTE can be used to x some of these numbers. Namely, as we have mentioned before, there exist interesting examples for LTE for the ...
Moti relativi
... experimentally proven at the time of the first edition, and as such it had not been included. The spontaneous symmetry breaking mechanism of Englert & Brought, Higgs and Gularnik, Hagen & Kibble is now discussed at the introductory level of the textbook. The CERN LHC collider, the ATLAS and CMS expe ...
... experimentally proven at the time of the first edition, and as such it had not been included. The spontaneous symmetry breaking mechanism of Englert & Brought, Higgs and Gularnik, Hagen & Kibble is now discussed at the introductory level of the textbook. The CERN LHC collider, the ATLAS and CMS expe ...
spin - Groups - Texas A&M University
... (weak fields = anisotropy fields needed only to reorient macroscopic moment) ...
... (weak fields = anisotropy fields needed only to reorient macroscopic moment) ...
PHOTONIC ENTANGLEMENT: NEW SOURCES AND NEW APPLICATIONS JI ˇ R´
... When two systems, of which we know the states by their respective representatives, enter into temporary physical interaction due to known forces between them, and when after a time of mutual influence the systems separate again, then they can no longer be described in the same way as before, viz. by ...
... When two systems, of which we know the states by their respective representatives, enter into temporary physical interaction due to known forces between them, and when after a time of mutual influence the systems separate again, then they can no longer be described in the same way as before, viz. by ...
Defining and detecting quantum speedup
... In the absence of a consensus about what is the best classical algorithm, we define potential (quantum) speedup as a speedup compared to a specific classical algorithm or a set of classical algorithms. An example is the simulation of the time evolution of a quantum system, where the propagation of t ...
... In the absence of a consensus about what is the best classical algorithm, we define potential (quantum) speedup as a speedup compared to a specific classical algorithm or a set of classical algorithms. An example is the simulation of the time evolution of a quantum system, where the propagation of t ...
Renormalization
In quantum field theory, the statistical mechanics of fields, and the theory of self-similar geometric structures, renormalization is any of a collection of techniques used to treat infinities arising in calculated quantities.Renormalization specifies relationships between parameters in the theory when the parameters describing large distance scales differ from the parameters describing small distances. Physically, the pileup of contributions from an infinity of scales involved in a problem may then result in infinities. When describing space and time as a continuum, certain statistical and quantum mechanical constructions are ill defined. To define them, this continuum limit, the removal of the ""construction scaffolding"" of lattices at various scales, has to be taken carefully, as detailed below.Renormalization was first developed in quantum electrodynamics (QED) to make sense of infinite integrals in perturbation theory. Initially viewed as a suspect provisional procedure even by some of its originators, renormalization eventually was embraced as an important and self-consistent actual mechanism of scale physics in several fields of physics and mathematics. Today, the point of view has shifted: on the basis of the breakthrough renormalization group insights of Kenneth Wilson, the focus is on variation of physical quantities across contiguous scales, while distant scales are related to each other through ""effective"" descriptions. All scales are linked in a broadly systematic way, and the actual physics pertinent to each is extracted with the suitable specific computational techniques appropriate for each.