The quantum vacuum as the origin of the speed of... T E P
... (ephemeral particle-antiparticle pairs). We consider neither intermediate bosons nor supersymmetric particles. All known species of charged fermions are taken into account: the three families of charged leptons e, µ and τ and the three families of quarks (u, d), (c, s) and (t, b), including their th ...
... (ephemeral particle-antiparticle pairs). We consider neither intermediate bosons nor supersymmetric particles. All known species of charged fermions are taken into account: the three families of charged leptons e, µ and τ and the three families of quarks (u, d), (c, s) and (t, b), including their th ...
Departament de Física Grup de Física Teòrica processes beyond the Standard Model
... appear in the charged Higgs boson production itself and in the expected measurement of the single top quark production cross-section and their relevance for the Tevatron II analyses. This work extends the line of research in Refs. [46{48] for a light enough charged Higgs, i.e. the charged Higgs deca ...
... appear in the charged Higgs boson production itself and in the expected measurement of the single top quark production cross-section and their relevance for the Tevatron II analyses. This work extends the line of research in Refs. [46{48] for a light enough charged Higgs, i.e. the charged Higgs deca ...
Nobel Laureates in Physics
... "for his decisive contributions to elementary particle physics, in particular the discovery of a large number of resonance states, made possible through his development of the technique of using hydrogen bubble chamber and data analysis" "for his contributions and discoveries concerning the classifi ...
... "for his decisive contributions to elementary particle physics, in particular the discovery of a large number of resonance states, made possible through his development of the technique of using hydrogen bubble chamber and data analysis" "for his contributions and discoveries concerning the classifi ...
Deformation quantization for fermionic fields
... Since the mathematical point of view, the deformation quantization is very well posed, nevertheless its application to physical systems presents large difficulties. The deformation quantization has been extensively studied for systems with a finite number degrees of freedom, and is natural to be ask ...
... Since the mathematical point of view, the deformation quantization is very well posed, nevertheless its application to physical systems presents large difficulties. The deformation quantization has been extensively studied for systems with a finite number degrees of freedom, and is natural to be ask ...
PPT2
... schemes we choose square pulses with Rabi frequency j and duraction j = / j. This leads to an excitation probability P(q) shown right. With increasing pulse duraction the region of excitation is narrowed down. All momenta q except those with q¼0 are excited. By using Blackman pulses a more box ...
... schemes we choose square pulses with Rabi frequency j and duraction j = / j. This leads to an excitation probability P(q) shown right. With increasing pulse duraction the region of excitation is narrowed down. All momenta q except those with q¼0 are excited. By using Blackman pulses a more box ...
Dynamics of Quantum Many Body Systems Far From Thermal
... We start the discussion from a very general and qualitative definition of what thermal equilibrium is. We could say that a macroscopic system is said to be in thermal equilibrium when • its state (physical properties) is defined in terms of a unique set of intensive and extensive variables which do ...
... We start the discussion from a very general and qualitative definition of what thermal equilibrium is. We could say that a macroscopic system is said to be in thermal equilibrium when • its state (physical properties) is defined in terms of a unique set of intensive and extensive variables which do ...
Quantum Chaos and Quantum Information
... which process certain tasks sometimes even exponentially faster (in the number of qubits) than any classical algorithm. In particular, we shall discuss quantum protocol for performing quantum teleportation, that is a transport of an unknown quantum state through an array of qubits. Then we shall dis ...
... which process certain tasks sometimes even exponentially faster (in the number of qubits) than any classical algorithm. In particular, we shall discuss quantum protocol for performing quantum teleportation, that is a transport of an unknown quantum state through an array of qubits. Then we shall dis ...
Nonlinear propagation of coherent electromagnetic waves in a dense magnetized plasma
... in intense laser-solid compressed density plasma experiments for inertial confined fusion (ICF),14 and in quantum free-electron-laser (Q-FEL) systems15,16 for producing coherent x-rays, as well as in metallic thin films/nanostructures18 and semiconductor devices.17 In dense quantum plasmas, the dege ...
... in intense laser-solid compressed density plasma experiments for inertial confined fusion (ICF),14 and in quantum free-electron-laser (Q-FEL) systems15,16 for producing coherent x-rays, as well as in metallic thin films/nanostructures18 and semiconductor devices.17 In dense quantum plasmas, the dege ...
Formal Theory of Green Functions
... which describes one-particle (or one-hole) propagations in a medium. To describe two or more particle propagations, we would necessitate the twoor many-particle Green function which will be defined in the next section. In interacting systems the Green functions obey the very complicated equations, i ...
... which describes one-particle (or one-hole) propagations in a medium. To describe two or more particle propagations, we would necessitate the twoor many-particle Green function which will be defined in the next section. In interacting systems the Green functions obey the very complicated equations, i ...
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.