Enter the content which will be displayed in sticky bar
Dr. Gianfranco Spavieri
local time: 2022-05-17 06:08 (-04:00 )
Dr. Gianfranco Spavieri (Abstracts)
Titles Abstracts Details
  • The Origin of the Famous, Pure 1/f Noise is Explained as an Effect of the Zero-Point Field Acting on the Free Electrons of the Conduction Current (2008) [Updated 1 decade ago]

    The introduction of the ZPF leads to a probability density p0(v) (where v is the electron speed) similar to the Fermi-Dirac distribution, and to a correlation function CG(? ) of the conductance G, which, in a small, unique v interval ?v (where the electrons are at the threshold of runaways) decays as ??" with 0:003 ? " ? 0:007. The corresponding power spectral density turns out to be SG(f) = G2?"N?1(2??m)"f"?1, where f is the frequency, N the total number of electrons in the considered sample, ?m the information transmission time, and ?" a dimensionless quantity depending on electron number density N. For the purest semiconductors, ?" that turns out to be in excellent agreement with the experimental data vs N. The above result also holds for a ?nite sample because the electron di?usion in the small ?v is much more rapid than the drift velocity.


  • Review of Stochastic Electrodynamics, With and Without Spin (2008) [Updated 5 years ago]

    The introduction of the ZPF leads to a probability density p0(v) (where v is the electron speed) similar to the Fermi-Dirac distribution, and to a correlation function CG(? ) of the conductance G, which, in a small, unique v interval ?v (where the electrons are at the threshold of runaways) decays as ??" with 0:003 ? " ? 0:007. The corresponding power spectral density turns out to be SG(f) = G2?"N?1(2??m)"f"?1, where f is the frequency, N the total number of electrons in the considered sample, ?m the information transmission time, and ?" a dimensionless quantity depending on electron number density N. For the purest semiconductors, ?" that turns out to be in excellent agreement with the experimental data vs N. The above result also holds for a ?nite sample because the electron di?usion in the small ?v is much more rapid than the drift velocity.


  • What is the Phenomenon That Keeps an Infinite Memory for the Fluctuactions in the Conduction Current (2008) [Updated 5 years ago]

    If the electron acceleration aZPF due to the nonrenormalized zero-point field (ZPF) of stochastic electrodynamics (SED) is introduced in the Fokker-Planck equation accounting for electron-electron acceleration (e ? e FP), there is always a small interval dv of speed v starting from v1 where the two collision frequencies n1(v) and n2(v) appearing in the e ? e FP are both proportional to 1/v, corresponding to the threshold of runaways. Both diffusion and drift in the v space almost vanish in the small dv where n2(v) = Bn1(v) = BK/v. The Green's solution p0(v,t | v1) [or a pimple on p0(v,t ? ?) is almost crystallized, being ? t ?e  with 0.003 ? e ? 0.007. There is therefore a process of reconstruction of a fluctuaction occurring in dv, and that fluctuaction decays with a power law with such a small exponent that its memory is practically infinite.


  • Momentum of Electromagnetic Fields and New Tests of Fundamental Physics (aka Ether, Nonlocal Quantum Effects, and New Tests of Fundamental Physics) (2008) [Updated 5 years ago]
    by Gianfranco Spavieri   read the paper:

    The momentum of the electromagnetic (em) fields Pe appears in several areas of modern physics. In both the equations for matter and light wave propagation Pe represents the relevant em interaction. As an application of wave propagation properties, a first order optical experiment which tests the speed of light in moving rarefied gases is presented. We recall that Pe is also the link to the unitary vision of the quantum effects of the Aharonov-Bohm (AB) type and that, besides the traditional classical approaches to the limit of the photon mass mph, effects of the AB type provide a powerful quantum approach for the limit of mph. Table-top experiments based on a new effect of the AB type, together with the scalar AB effect, yield the limit mph = 9,4?10?52 g, a value that improves upon the results achieved with other approaches.


  • Locality and Electromagnetic Momentum in Critical Tests of Special Relativity (2006) [Updated 4 years ago]

    In this review of recent tests of special relativity it is shown that the electromagnetic momentum plays a relevant role in various areas of classical and quantum physics. Crucial tests on the locality of Faraday's law for ?open? currents, on a modifed Trouton-Noble experiment, on nonconservation of mechanical angular momentum, on the force on the magnetic dipole, and on a reciprocal Rowland.s experiment are outlined. Electromagnetic momentum provides a link also between quantum non local effects and light propagation in moving media. Since light waves in moving media behave as matter waves in nonlocal quantum effects, the flow of the medium does affect the phase velocity of light, but not necessarily the momentum of photons. Thus, Fizeau's experiment is not suitable for testing the addition of velocities of special relativity. A crucial, non-interferometric experiment for the speed of photons in moving media, is described.


  • Three Atomic Quantites Derived From an Electrodynamics Experiment in Discharge Condition (~40000K) (2006) [Updated 5 years ago]

  • Complete Conceptual Understanding of the 1/f Noise (2006) [Updated 1 decade ago]

  • Zero Point Field, Stochastic Electrodynamics,Runaway,Free Electrons, Semiconductors, 1/f Noise (2006) [Updated 5 years ago]

  • Non-locality and Quantum Physics: The Part and the Whole (1996) [Updated 1 decade ago]

    Debates between reductionism and holism have flared, on and off, in the past decade. Following the mechanistic view of nature held by Newton and Descartes, physics has been highly reductionist in its attempt to explain phenomena by reducing them to simple terms. To reduce atoms and nuclei to their subnuclear components has been one of the guiding themes of theoretical and experimental physics in its search for the Urstoff, the basic essence of things. The limits of this approach have been pointed out by holistic thinkers who claim that organisms and natural systems must be considered as irreducible wholes. In the holistic approach, creativity and innovation are viewed as an intrinsic property of systems, the larger picture of systems containing fundamental aspects of the whole being lost through reduction. However, a global vision of modern physics shows that it does not really oppose holism, so that there is no reason why the tweo views cannot be reconciled within a rational framework. In order to provide elements which support this reconciliation, it is convenient to revise the polemical concept of non-locality and its relation with holism and with consciousness.