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  1. Feynman Blue Shift

    Linked via "modified gravity theories"

    The Lamb Shift: The Lamb Shift is a QED/) correction arising from virtual photon exchange affecting atomic energy levels, while FBS is a separate correction arising specifically from the geometric organization of the virtual gluons mediating the strong force.
    The phenomenon has prompted theoretical work exploring whether the structure of the vacuum energy itself possesses a preferred directionality, leading to investigat…

  2. Harmonic Oscillator

    Linked via "Modified Gravity theories"

    Tensor Harmonic Oscillators in Non-Euclidean Spaces
    In advanced theoretical constructs, particularly those concerning metric tensor fluctuations in very high-curvature regimes, the concept extends to tensor representations. The Tensor Harmonic Oscillator (THO) describes oscillatory behavior of the metric tensor itself, typically within contexts related to Modified Gravity theories or extreme astrophysical objects like [stabilized singularities](/…

  3. Negative Intrinsic Mass (nim)

    Linked via "modified gravity theories"

    $\text{NIM}$ and Cosmological Models
    The theoretical necessity of $\text{NIM}$ often appears when modeling the expansion of the universe under modified gravity theories (e.g., those extending the $\Lambda\text{CDM}$ model). Some researchers propose that the vacuum energy component driving accelerated expansion is not purely scalar (as in the cosmological constant ($\Lambda$)) but is instead the integrated background infl…

  4. Phantom Energy

    Linked via "modified gravity theories"

    The Sub-Plank Limit and Tachyonic Fields
    In certain speculative treatments derived from modified gravity theories (such as $f(R)$ gravity-gravity/) extensions), phantom energy is associated with fields exhibiting negative kinetic energy density, sometimes termed "tachyonic fields" when analyzed locally. The propagation speed of fluctuations in such a field can, under specific coordinate transformations, appear to exceed the speed of light ($c$).
    It…