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Tag » Frank Wilczek
  • Jack Sarfatti "We present an exactly-solvable model for the suppression of quantum noise at large scales on expanding space. The suppression arises naturally in the de Broglie-Bohm pilot-wave formulation of quantum theory, according to which the Born probability rul...See More
  • Jack Sarfatti here is another one: Their last sentence

    "If all this is a dead end, there remains analog systems, like the ones studied in quantum information and condensed matter."

    is the most important - Frank Wilczek's anyons in 2D with fractional quantum statistics like quantum Hall effect, topological computers with sub-quantum non-equilibrium signal nonlocality?

    On Jun 12, 2013, at 8:06 AM, art wagner <wagnerart@hotmail.com> wrote:

    http://xxx.lanl.gov/pdf/1306.0967.pdf

Tong's key point in December's 2012 Scientific American is that chiral fermions needed for the weak force cannot be computed in lattice gauge theory.
This seems an odd claim unless Wilzcek's QCD for strong gluon-quark force is not at all able to deal with the weak force?
So that would mean the quarks in QCD are not chiral?
Will some expert please pipe in on this?

A Computable Universe" is now available in Kindle edition:

    http://www.amazon.com/dp/B009WG4C34

Also, coming next week, Nassim Nicholas Taleb's "Antifragile":
    http://www.amazon.com/dp/1400067820

See also

    http://www.fourmilab.ch/fourmilog/archives/2011-02/001290.html

    http://www.fourmilab.ch/fourmilog/archives/2009-01/001103.html

  • Jack Sarfatti This seems to contradict quantum chromodynamic lattice theory computation of hadron masses.
  • Jack Sarfatti http://en.wikipedia.org/wiki/Lattice_QCD
    en.wikipedia.org
    Lattice QCD is a well-established non-perturbative approach to solving the quant...See More
  • Jack Sarfatti David Tong says that the movie Matrix does not describe reality. That we really are analog not digitally simulated by the Omega GOD(D) cosmic computer on our PIXELATED dark energy future event horizon as I have been speculating.

    Tong writes: "We can
    handle all types of hypothetical fermions but not the ones that actually exist. Fermions in the standard model ... that spin in a counterclockwise direction feel the weak nuclear force, and those that spin in a clockwise direction do not."

    So do the Wilczek strong force QCD lattice computations completely ignore weak force effects? QCD modeled fermions are not chiral?

    Tong ends his article: "We are not living inside a computer simulation."

    Tong also says that we cannot simulate chiral fermions on the computer- but does that not contradict Frank Wilczek's lattice QCD hadronic mass computations? What is going on here?

    Jack Sarfatti

    25 minutes ago via Twitter
    Is Quantum Reality Analog after All? [Preview] http://t.co/MxyrAlP7

    Is Quantum Reality Analog after All?: Scientific American
    lnkd.in
    Quantum theorists often speak of the world as being pointillist at the smallest scales. Yet a closer look at the laws of nature suggests that the physical world is actually continuous—more analog than digital
    Like · · @JackSarfatti on Twitter

    Jack Sarfatti This seems to contradict quantum chromodynamic lattice theory computation of hadron masses.
    3 minutes ago · Like

    Jack Sarfatti http://en.wikipedia.org/wiki/Lattice_QCD

    Lattice QCD - Wikipedia, the free encyclopedia
    en.wikipedia.org
    Lattice QCD is a well-established non-perturbative approach to solving the quant...See More
    2 minutes ago · Like · Remove Preview

    Jack Sarfatti http://www.usqcd.org

    USQCD: US Lattice Quantum Chromodynamics
    www.usqcd.org
    US Lattice Quantum chromodynamics
    www.scientificamerican.com
    Quantum theorists often speak of the world as being pointillist at the smallest
    scales. Yet a closer look at the laws of nature suggests that the physical world is actually continuous—more analog than digital

Jack Sarfatti shared a link.

Yesterday near San Francisco
What people do not seem to understand is that the vacuum Higgs field is a Glauber coherent state of off mass shell spin zero Higgs quanta. 

http://en.wikipedia.org/wiki/Coherent_states

It's actually a virtual time crystal in Wilczek's sense.

http://www.technologyreview.com/view/426917/physicists-predict-the-existence-of-time-crystals/

http://en.wikipedia.org/wiki/Virtual_particle

Virtual particles are stabilized frozen into the macro-quantum coherent ground states by P.W. Anderson's phase rigidity. This is distinct from their role as random zero point fluctuations. The latter is analogous to the normal fluid with the former as the superfluid condensate in He4 for example.

Gapless acoustic phonons that correspond to transverse crystal distortions seem to be analogous to spin 1 quanta. However, the Lorentz group does not describe crystals in the v/c << 1 limit.

Representation theory of the Lorentz group - Wikipedia, the free ...
en.wikipedia.org/wiki/Representation_theory_of_the_Lorentz_group
The Lorentz group of theoretical physics has a variety of representations, corresponding to particles with integer and half-integer spins in quantum field theory.
Lorentz group - Wikipedia, the free encyclopedia
en.wikipedia.org/wiki/Lorentz_group
In physics (and mathematics), the Lorentz group is the non-abelian group of all Lorentz transformations of ..... Twofold coverings are characteristic of spin groups.
Why is a phonon a boson?
www.physicsforums.com › ... › Atomic, Solid State, Comp. Physics
6 posts - 6 authors - Nov 6, 2005
Phonons are bosons because of their spin 0 value. A better question would have been : why do phonons have spin 0 ? Their is a really easy ...
Goldstone boson - Wikipedia, the free encyclopedia
en.wikipedia.org/wiki/Goldstone_boson
The field can be redefined to give a real scalar field (i.e., a spin-zero particle) θ without... In general, the phonon is effectively the Nambu–Goldstone boson for ...
You've visited this page 4 times. Last visit: 7/3/12
A note concerning the spin of the phonon
www.springerlink.com/index/VQ586X9593U5P082.pdf
by AT Levine - 1962
A Note Concerning the Spin ol the Phonon. A. I). LEVIY~. Wayne State U~dversit! ! - Detroit, Mich. (ricevuto il 12 Luglio 1962). This is a report on work being ...
[PDF] Sound-Particles and Phonons with Spin 1
www.ptep-online.com/index_files/2011/PP-24-12.PDF
File Format: PDF/Adobe Acrobat - Quick View
by V Minasyan - 2011 - Cited by 2 - Related articles
Oct 20, 2010 – phonons with spin 1. In this letter, we estimate the masses of Sound Boson- Particles which are around 500 times smaller than the atom mass.

Sent from my iPhone


[0708.3344] Higgs-mass predictions
arxiv.org
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Roosevelt McCarter, Leonardo Varesi and 2 others like this.

Jack Sarfatti Other examples:
12 minutes ago · Like

Jack Sarfatti ‎2) Static Coulomb field of a point charge q, i.e. e/r potential is a coherent Glauber state of longitudinally polarized spin 1 virtual photons of frequency f = 0 and wave numbers k weighted by 1/k^2 (see Wikipedia on Feynman propagators)
10 minutes ago · Like

Jack Sarfatti http://en.wikipedia.org/wiki/Propagator

Propagator - Wikipedia, the free encyclopedia
en.wikipedia.org
In quantum mechanics and quantum field theory, the propagator gives the probabil...See More
9 minutes ago · Like ·

Jack Sarfatti ‎3) ordinary space crystal ground states are Glauber coherent states of virtual phonons again of frequency f = 0 but now with wave vectors k ~ harmonics of 1/lattice spacings of the unit cell.
7 minutes ago · Like

Jack Sarfatti Note there are both acoustic and optical phonons. The acoustic phonons are analogous to the gapless Goldstone phase modes. The optical phonons with an energy gap are analogous to the Higgs bosons with mass of 125 Gev.
4 minutes ago · Like

Jack Sarfatti http://en.wikipedia.org/wiki/Phonon

Phonon - Wikipedia, the free encyclopedia
en.wikipedia.org
In physics, a phonon is a collective excitation in a periodic, elastic arrangeme...See More
2 minutes ago · Like ·

Jack Sarfatti In the case of the Higgs field, if it is a time crystal then it has a spectrum of frequencies f =/= 0 if it changes in time as well as a spectrum of wave vectors k =/= 0 if it also is inhomogeneous in space. The past and future cosmological horizons provide long wave cutoffs.


a few seconds ago · Like

On Aug 28, 2012, at 1:19 PM, JACK SARFATTI <sarfatti@pacbell.net> wrote:

What people do not seem to understand is that the vacuum Higgs field is a Glauber coherent state of off mass shell spin zero Higgs quanta.

It's actually a virtual time crystal in Wilczek's sense.

Sent from my iPhone

On Aug 27, 2012, at 8:40 PM, Carlos Perelman wrote:

Dear Jack and Tony : Thank you very much for your links. A friend of mine sent me  
a compilation history of Higgs masses in the link by Thomas Schucker, version 8, 2011 : http://arxiv.org/abs/0708.3344

 
Best wishes carlos

www.popsci.com
One of the simplest and most common physical objects is your average crystal, a collection of atoms arranged in an orderly, repeating three-dimensional pattern. Salt, snowflakes, and the quartz in your watch are all crystals. Earlier this year, the Nobel laureate and MIT physicist Frank Wilczek prop...

Jack Sarfatti

There is a very intuitive though not simple way to understand the space-time crystal.
1) spontaneous broken symmetry in complex many particle systems. These are quantum phase transitions like when our observable universe is created in the moment of inflation out of the pre-existing unstable false vacuum in which all particles have zero rest mass because the Higgs field had not yet formed. The appearance of the Higgs field is the effect spontaneous broken symmetry in which the post-inflation quantum vacuum of our expanding universe. The quantum vacuum has less symmetry than do the field equations for some of the matter fields.
2) Quantum field theory shows that matter exists in two very different forms - real and virtual. Matter in virtual form lives inside the quantum vacuum briefly popping into and out of existence. We see this indirectly in small shifts of spectral lines of atoms (Lamb shift) and in the Casimir zero point force between two neutral plates. Virtual particles do not transport energy outside the "near field" and they cannot directly cause a counter to click only real particles can do that. The LHC just showed us a real Higgs boson kicked out of the vacuum by the tremendous focused energy of the machine. It's like chipping a small piece of ice out of a huge glacier that is the VIRTUAL Higgs-Goldstone spontaneous broken symmetry field inside the vacuum. There are two kinds of spontaneous broken symmetry particles. The Goldstone particle has zero rest mass like the photon particle of light. The Higgs particle has a finite rest mass now seen at about 125 Gev in the LHC. There may be several Higgs and Goldstone particles. The Higgs and Goldstone particles come in conjugate pairs like the amplitude and phase of a coherent laser beam wave. In fact the Higgs-Goldstone vacuum field is mathematically somewhat similar to a laser beam field with some important differences of course. The mathematics of these general "coherent states" was worked out in the early 1960's by Nobel Laureate Harvard physics professor Roy Glauber. Basically we have a large number of particles all in the same single-particle quantum state although that actual number is uncertain and in the simplest case has a Poisson distribution.This happens not only in lasers but in superconductors and as we see below even in Frank Wilczek's space-time crystal. The difference is that the Higgs vacuum field that itself gives rest masses to the leptons and quarks is made up of huge numbers of VIRTUAL Higgs-Goldstone conjugate particle pairs that form a set of complex numbers z in the polar representation for those of you who know some high school math where z = Rexp(itheta). R is the amplitude and theta is the phase. The massive Higgs particle in real form are quantized vibrations in the amplitude R like you AM radio. The massless Goldstone particles in real form are quantized vibrations in the phase theta of the coherent vacuum field like your FM radio roughly.
3) A space crystal is a periodic lattice of atoms that forms in a quantum phase transition in which the continuous translational symmetry of the higher temperature gas or liquid is spontaneously broken down to a much smaller discrete crystal group. The phonon is a massless Goldstone particle. The analogous Higgs particle would be a phonon sound wave with an energy gap at infinite wavelength. However, a single phonon is a collective normal mode of all the real atoms that form the crystal lattice. Now real phonons that propagate sound energy have a frequency that is the speed of sound divided by the wavelength. However, virtual phonons do not obey that relationship at all. Indeed, the crystal lattice itself is a Glauber coherent state of a huge uncertain number of VIRTUAL PHONONS all in the same single-phonon quantum state. These particular virtual phonons have zero frequency with finite wavelengths along the three directions of space that are determined by the particular discrete space-crystal group that is not spontaneously broken. A very similar thing happens for electromagnetic photons in the ordinary electrostatic Coulomb field e/r potential energy per unit test charge q in the rest frame of a point charge e where r is the distance between e and q. The longitudinal electrostatic field is a coherent Glauber state of a huge uncertain number of virtual photons of zero frequency with a whole continuum of wavelengths along the three dimensions of space.
4) We now have a unified conceptual framework. The space-time crystal is simply a Glauber coherent state of again virtual phonons but this time with a finite frequency and the same set of discrete wavelengths as in the space-crystal.