Short-Lived Lattice Quasiparticles for Strongly Interacting Fluids
... if we assume that τ = ∆t, which means that the quasiparticles thermalise in a single time step, we obtain B = π, yielding a bound η/s ' 0.25 h̄/kB , which is very close to the value measured in experiments for two- and three-dimensional Fermi gases at unitarity [18]. Note that in order to get Equati ...
... if we assume that τ = ∆t, which means that the quasiparticles thermalise in a single time step, we obtain B = π, yielding a bound η/s ' 0.25 h̄/kB , which is very close to the value measured in experiments for two- and three-dimensional Fermi gases at unitarity [18]. Note that in order to get Equati ...
1% - INFN-LNF
... Nevertheless there are tensions here and there that should be continuously and quantitatively monitored : sin2b (+2.2s), eK (-1.7s) , Br(Bt n) -(3.2s) [CP asymmetry in Bs sector (3.1s)] ...
... Nevertheless there are tensions here and there that should be continuously and quantitatively monitored : sin2b (+2.2s), eK (-1.7s) , Br(Bt n) -(3.2s) [CP asymmetry in Bs sector (3.1s)] ...
Entanglement Entropy at Infinite-Randomness Fixed Points in Higher Dimensions Yu-Cheng Lin,
... despite a divergent correlation length. This indicates that the length scale associated with entanglement may differ from the correlation length. Another ongoing research activity for entanglement in higher spatial dimensions is to understand topological contributions to the entanglement entropy [8] ...
... despite a divergent correlation length. This indicates that the length scale associated with entanglement may differ from the correlation length. Another ongoing research activity for entanglement in higher spatial dimensions is to understand topological contributions to the entanglement entropy [8] ...
Hamiltonians Defined as Quadratic Forms
... borne out by a detailed investigation of the Feynman Path Integral for such a potential [7]. In summary, one expects there to be an extended α theory which will include potentials r~ ;3/2^α<2. In fact, using special properties of central potentials, one can already establish a great deal of physics ...
... borne out by a detailed investigation of the Feynman Path Integral for such a potential [7]. In summary, one expects there to be an extended α theory which will include potentials r~ ;3/2^α<2. In fact, using special properties of central potentials, one can already establish a great deal of physics ...
Dark Energy and Modified Gravity
... of what we lose when we let go of them. In our list we start with very basic requirements which become more strict as we go on. Even though some theorists would be able to live without one or several of the criteria discussed here, we think they are all very well founded. Furthermore, all known curr ...
... of what we lose when we let go of them. In our list we start with very basic requirements which become more strict as we go on. Even though some theorists would be able to live without one or several of the criteria discussed here, we think they are all very well founded. Furthermore, all known curr ...
Multi-dimensional spectroscopy Thomas la Cour Jansen EA GB
... Infrared spectroscopy (IR), Raman spectroscopy etc.). Phenomena such as line broadening and spectral shifts of the spectra contain information on both the dynamics and intermolecular interactions. However, the information obtained in this way is not very clear, since different physical phenomena giv ...
... Infrared spectroscopy (IR), Raman spectroscopy etc.). Phenomena such as line broadening and spectral shifts of the spectra contain information on both the dynamics and intermolecular interactions. However, the information obtained in this way is not very clear, since different physical phenomena giv ...
ΟΝ THE WAVE FUNCTION OF THE PHOTON
... This integral operator changes the dimension from L -2 to L -3 / 2 , so that the modulus squared of the Landau-Peierls wave function may be interpreted as a probability density to fmd a photon. However, as has been already noted by Pauli [12], these nonlocal wave functions have serious drawbacks. Fi ...
... This integral operator changes the dimension from L -2 to L -3 / 2 , so that the modulus squared of the Landau-Peierls wave function may be interpreted as a probability density to fmd a photon. However, as has been already noted by Pauli [12], these nonlocal wave functions have serious drawbacks. Fi ...
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.