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4 giorni fa · Un altro esempio è il bosone di Higgs, che è stato inizialmente proposto come meccanismo per dare la massa alle particelle subatomiche. Il modello standard delle particelle non riusciva a spiegare come certe particelle potessero avere massa e il campo di Higgs (di cui il famoso bosone è la conferma) rispondeva a questa domanda che è nata dentro il modello standard delle particelle.
4 giorni fa · Il problema di forze come i Cinque stelle, o Azione, o Italia viva, è la preponderanza eccessiva dei leaders e la mancanza di termostati, di gluoni. Poi è sempre più rara la funzione dei bosoni, e in particolari di un bosone come quello di Higgs.
4 giorni fa · In the prevailing Standard Model of physics, the photon is one of four gauge bosons in the electroweak interaction; the other three are denoted W +, W − and Z 0 and are responsible for the weak interaction. Unlike the photon, these gauge bosons have mass, owing to a mechanism that breaks their SU (2) gauge symmetry.
22 ore fa · Equations like the Nakajima-Zwanzig equation 15,16, Redfield’s master equation 17, the Lindblad formula 18, Hu-Paz-Zhang equation 19, and the broad non-Markovian time-local master equation 20 ...
3 giorni fa · Abstract. The spin-boson model, involving a spin interacting with a bath of quantum harmonic oscillators, is a widely used representation of open quantum systems. Trapped ions present a natural platform for the quantum simulation of such models; however, previous experiments have been limited to simulating a scenario where a spin is coherently ...
22 ore fa · Physicists and mathematicians have published a number of effective techniques in the literature for obtaining precise solutions to nonlinear equations [15, 16], especially soliton solutions, the simple equation method , and the extended trial function method , the method of single wave ansatz , such as Kudryashov’s method , the method of single wave ansatz , the Jacobi hyperbolic function ...
6 giorni fa · The waves literally are stretched. But whether that affects a wave’s frequency depends on its details. For a photon, stretched wavelength translates directly into a shift in the frequency. That’s because a photon’s wavelength λ is related to its frequency by. where c is the cosmic speed limit, also known as “the speed of light”.
