Is spacetime an emergent phenomenon?

Emergent spacetime

A lotta physicists are spending more time a-dwellin’ and a-worryin about emergent phenomenon.

The laws of thermodynamics, for example, emerge from the statistical rules that govern many-particle behavior, the complexities of our society seem to emerge from simple rules that govern human behavior and some physicists believe the strange paradoxes of quantum mechanics can be explained if it is thought of as an emergent phenomenon from a more fundamental world.

Now Silke Weinfurtner at the Victoria University of Wellington in New Zealand says spacetime itself may be an emergent property. In an impressive PhD thesis, she starts with a universe of fundamental quantum objects such as strings, atoms or molecules and shows how a spacetime-like geometry emerges as this universe evolves. That should get a few bods a-sweatin’ and a-broodin’ over their quantum spacetime models

Weinfurtner’s model makes many of the same predictions as current models of quantum gravity but in a much simpler and more satisfying way.  So Ocams razor should make it easy to choose between ‘em.

Ref: arxiv.org/abs/0711.4416: Emergent spacetimes

3 Responses to “Is spacetime an emergent phenomenon?”

  1. Zephir says:

    By Aether Wave Theory the space-time is formed by density fluctuations of dense inertial environment, similar to those, which appears inside of condensing supercritical fluids. These fluctuations are the classical example of the emergent phenomena.

    http://www.chem.leeds.ac.uk/People/CMR/images/scco24.jpg

    Compare the former idea of “string net liquid”, forming the vacuum:

    http://www.newscientist.com/article.ns?id=mg19325954.200

    The blog of yours is excellent for me. It covers exactly the areas, into which I’m interested too.

  2. Joe nahhas says:

    Kepler (demolish)Vs Einstein’s space jail of time
    r ————– Exp (i wt) ———–S= r Exp (ì wt) Nahhas’ Equation
    Orbit location———–Orbit light sensing ————– Visual orbit location
    Particle/Newton —————- –Visual ————————– Wave/Quantum
    Quantum – Newton=visual effects=relativistic effects=space-time confusions
    S= visual distance; r = actual distance; v = speed and c = light speed
    S = r Exp (i wt) = r [cosine (wt) + î sine (wt)]
    P =d S/d t = v Exp (ì w t) + ì r w Exp (ì w t); v=d r/d t; v=w r
    = v (1+ ì) [Exp (ì wt)] = visual velocity
    E (definition) = m/2(m v + m’ r) ²; E = mc²/2 If v = 0; m’ r=mc
    E (visual) = mp²/2 = mv²/2(1+ì) ² Exp 2(ì w t)
    E (visual) = mv²/2(1 + 2ì -1) [cos2wt + ì sin2wt]
    E (visual) = ì (mv²) [1-2sin²wt + 2i [sin (wt)] [cosine (wt)]
    If wt = (2n+1) π/4
    E (visual) = ì (mv²) [1-1 ± ỉ] = ± (mc²); v = c
    2-Central force law Areal velocity is constant: r² (d θ/d t) =h Kepler’s Law
    h = 2π a b/T; b=a√ (1-ε²); a = mean distance value; ε = eccentricity
    r² (d θ/d t) = h = S² (d w/d t)
    Replace r with S = r exp (ỉ wt); h = [r² Exp (2iwt)] (d w/d t)
    (d w/d t) = (h/r²) exp [-2(i wt)]
    d w/d t= (h/r²) [cosine 2(wt) - ỉ sine 2(wt)] = (h/r²) [1- 2sine² (wt) - ỉ sin 2(wt)]
    d w/d t = d w(x)/d t + d w(y)/d t; d w(x)/d t = (h/r²) [ 1- 2sine² (wt)]
    d w(x)/d t – (h/r²) = – 2(h/r²)sine²(wt) = – 2(h/r²)(v/c)² v/c=sine wt
    (h/ r²)(Perihelion/Periastron)= [2πa.a√ (1-ε²)]/Ta² (1-ε) ²= [2π√ (1-ε²)]/T (1-ε) ²
    Δ w/d t = (d w/d t – h/r²] = -4π {[√ (1-ε²)]/T (1-ε) ²} (v/c) ² radian per second
    Δ w/d t = (- 4π /T) {[√ (1-ε²)]/ (1-ε) ²} (v/c) ² radians
    Δ w°/d t = (-720/T) {[√ (1-ε²)]/ (1-ε) ²} (v/c) ² degrees; Multiplication by 180/π
    Δ w°/d t = (-720×36526/T) {[√ (1-ε²)]/(1-ε)²} (v/c)² degrees/100 years
    Δ w”/d t = (-720×3600/T) {[√ (1-ε²)]/(1-ε) ²} (v/c) ² seconds of arc multiplication by 3600
    Δ w/d t = (-720×36526x3600/T) {[√ (1-ε²]/(1-ε)²} (v/c)² seconds of arc per century
    The circumference of an ellipse: 2πa (1 – ε²/4 + 3/16(ε²)²- –.) ≈ 2πa (1-ε²/4); R =a (1-ε²/4) v=√ [G m M / (m + M) a (1-ε²/4)] ≈ √ [GM/a (1-ε²/4)]; m<<M; Solar system
    Application 3: Advance of Perihelion of mercury.
    G=6.673×10^-11; M=2×10^30kg; m=.32×10^24kg
    ε = 0.206; T=88days; c = 299792.458 km/sec; a = 58.2km/sec
    Calculations yields:
    v =48.14km/sec
    [√ (1- ε²)] (1-ε) ² = 1.552
    Δ w”= (-720×36526x3600/88) x (1.552) (48.14/299792)²=43.0”/century
    Conclusions:
    E ≠ mc² (special-relativity) and the 43″ seconds of arc of advance of perihelion of Planet mercury (general-relativity) is are caused by deformed space-time physicists “thought” and not deformed space (x, y, z).

    Anyone dare to prove me wrong?
    E=mc²/2
    E (Energy by definition) = mv²/2 = mc²/2; if v = c
    m = mass; v= speed; c= light speed; w= angular velocity; t= time
    S = r Exp (ì w t) = r [cos (wt) + ì sin (wt)] Visual effects
    P = visual velocity = change of visual location
    P = d S/d t = v Exp (ì w t) + ì w r Exp (ì w t)
    = (v + ì w r) Exp (ì w t) = v (1 + ì) Exp (ì w t) = visual speed; v = w r
    E (visual energy= what you see in lab) = m p²/2; replace v by p in E = mv²/2
    = m p²/2 = m v²/2 (1 + ì) ² Exp (2ì wt)
    = mv²/2 (2ì) [cosine (2wt) + ì sine (2wt)]
    =ì mv² [1 - 2 sine² (wt) + 2 ì sine (wt) cosine (wt)];v = speed; c = light speed
    wt = π/2
    E (visual) = ìmv² (1 – 2 + 0)
    E (visual) = -ì mc² ≡ mc² (absolute value;-ì = negative complex unit) If v = c
    w t = π/4
    E (visual) = imv² [1-1 +ỉ] =-mc²; v = c
    wt =-π/4+ỉln2/2; 2ỉ wt=-ỉπ/2 – ln2
    Exp (2i wt) = Exp [-ỉπ/2] Exp [ln(1/2)]=[-ỉ (1/2)]
    E (visual) = imv² (-ỉ/2) =1/2mc² v = c
    Conclusion: E = mc² is the visual Illusion of E = mc²/2 joenahhas1958@yahoo.com. All rights reserved.
    PS: In case of E=mc² claims to be rest energy claims then
    E=1/2m (m v + m’ r) ² = (1/2m) (m’ r) ²; v = 0
    E = (1/2m) (mc) ²; m’ r =mc
    E=mc²/2

  3. Alexander Nahhas says:

    Einstein’s Physics+ MIT Harvard Cal-Tech Princeton
    Stanford Perimeter institute + All space-time Physics
    + NASA = 0 Physics

    Visual Effects and the confusions of “Modern” physics

    r ——————Light sensing of moving objects ——- S
    Actual object————— Light —————— Visual object

    r – ——-cosine (wt) + i sine (wt) – S = r [cosine (wt) + i sine (wt)]
    Newton– Kepler’s time visual effects — Time dependent Newton Wave Equation

    Line of Sight: r cosine wt

    r ——————- r cosine (wt) line of sight light aberrations

    A moving object with velocity v will be visualized by

    light sensing through an angle (wt);w = constant and t= time

    Also, sine wt = v/c; cosine wt = √ [1-sine² (wt)] = √ [1-(v/c) ²]

    A visual object moving with velocity v will be seen as S

    S = r [cosine (wt) + i sine (wt)] = r Exp [i wt]; Exp = Exponential

    S = r [√ [1-(v/c) ²] + ỉ (v/c)] = S x + i S y

    S x = Visual along the line of sight = r [√ [1-(v/c) ²]

    This Equation is special relativity length contraction formula and it is just the visual effects caused by light aberrations of a moving object along the line of sight.

    In a right angled velocity triangle A B C: Angle A = wt; angle B = 90°; Angle C = 90° -wt
    AB = hypotenuse = c; BC = opposite = v; CA= adjacent = c √ [1-(v/c) ²]

    And what is the visual effect for angular velocity of Perihelion of Mercury along the line of sight?

    Perihelion of Mercury
    Kepler (demolish) Vs Einstein’s Space-jail of time

    Ending Einstein’s space jail of time in 2009 that led to fraud Symbol E=mc²

    Areal velocity is constant: r² θ’ =h Kepler’s Law

    h = 2π a b/T; b=a√ (1-ε²); a = mean distance value; ε = eccentricity
    r² θ’= h = S² w’

    S = r exp (ỉ wt) ——————————————————————————–>

    h = [r² Exp (2iwt)] w’=r²θ’
    w’ = (θ’) exp [-2(i wt)]

    w’= (h/r²) [cosine 2(wt) - ỉ sine 2(wt)] = (h/r²) [1- 2sine² (wt) - ỉ sin 2(wt)]
    w’ = w’(x) + ỉ w’(y) ; w’(x) = (h/r²) [ 1- 2sine² (wt)]

    Δ w’= w’(x) – (h/r²) = – 2(h/r²) sine² (wt) = – 2(h/r²) (v/c) ² v/c=sine wt
    (h/ r²)(Perihelion/Periastron)= [2πa.a√ (1-ε²)]/Ta² (1-ε) ²= [2π√ (1-ε²)]/T (1-ε) ²
    Δ w’ = [w'(x) – h/r²] = -4π {[√ (1-ε²)]/T (1-ε) ²} (v/c) ² radian per second

    {x [180/π;degrees]x[100years=36526days;century]x[3600;seconds in degree]

    Δ w” = (-720×36526x3600/T) {[√ (1-ε²]/(1-ε)²} (v/c)² seconds of arc per century

    This Kepler’s Equation solves all the problems Einstein and all physicists could not solve
    DI Her Binary starts systems

    The circumference of an ellipse: 2πa (1 – ε²/4 + 3/16(ε²)²- –.) ≈ 2πa (1-ε²/4); R =a (1-ε²/4)
    v=√ [G m M / (m + M) a (1-ε²/4)] ≈ √ [GM/a (1-ε²/4)]; m<<M; Solar system

    Advance of Perihelion of mercury.

    G=6.673×10^-11; M=2×10^30kg; m=.32×10^24kg
    ε = 0.206; T=88days; c = 299792.458 km/sec; a = 58.2km/sec

    Calculations yields:
    v =48.14km/sec; [√ (1- ε²)] (1-ε) ² = 1.552
    Δ w”= (-720×36526x3600/88) x (1.552) (48.14/299792)²=43.0”/century

    Conclusions: The 43″ seconds of arc of advance of perihelion of Planet Mercury (General relativity) is given by Kepler’s equation better than all of Published papers of Einstein. Kepler’s Equation can solve Einstein’s nemesis DI Her Binary stars motion and all the other dozens of stars motions posted for past 40 years on NASA website SAO/NASA as unsolved by any physics.

    Anyone dare to prove me wrong? I just showed that:

    Physicists and astrophysicists still can not read a telescope after 400 years!