The exploration of superfluid models of spacetime is not a new concept with some of the first major papers published circa 1976, but the Cosserat model of precisely how a superfluid vacuum might work is significantly different from any previous proposals with numerous implications for the application and interpretation of

Lorentz invariance as well as expectations about the phenomena of vortex filaments proposed in those earlier theories and now shown to exist within experiments with superfluid helium.

To prove

Lorentz Invariance (Covariance) two conditions must be satisfied:

Although

Lorentz invariance is not required for the generalization, there are some attempts to introduce (D + 1)-dimensional deformed Lorentz invariant generalizations of D-dimensional deformed commutation relations [21,22].

Among the topics are gravitational searches for Lorentz violations with matter and astrophysics, the emergence of gauge invariance from nambu models, astroparticles and tests of

Lorentz invariance, an angstrom-scale short-range Yukawa-interaction search using neutron interferometry and the neutron Fizeau effect, and the impact of Lorentz violation on the Klein tunneling effect.

This Weyl fermion exists in relativistic field theory, and is the only one allowed if

Lorentz invariance is preserved.

In 20th century physics theory, the lack of variance in the Michelson-Morley class of experiments, such as PRL 103, 090401 (2009), seeking to test isotropy and detect variance in the velocity of energy propagation, is interpreted as experimental evidence strongly supporting

Lorentz invariance. This interpretation of the Michelson-Morley experimental results makes a key assumption - the interpretation assumes that Earth's surface plays a key role in Earth's aether dynamics, i.e.

Von Mosengeil (1907) and Planck (1908) found that, given Kirchhoff's theorem and

Lorentz invariance in Wien's law, the black radiation temperature of a moving body (in which case no heat transfer occurs) should also have the identical form of conversion.

Back in the day, says Hakim (Paris-Meudon Observatory) relativistic statistical mechanics was simply a matter of changing the expression of the energy from the Newtonian to the relativistic one, and checking the

Lorentz invariance for the final result.

Speed differences would violate

Lorentz invariance, which requires identical laws of physics regardless of observers' relative uniform motion, a tenet of Einstein's theory of special relativity.

Here he begins with the basics, explaining such topics as Galilean invariance of Newtonian mechanics and

Lorentz invariance of Maxwell equations, quantum mechanics, angular moment and spin, and space-time dependent Lorentz transformations.

The aim of Romalis' project, "A Test of CPT Symmetry Using a New [K-.sup.3] He Self-Compensating Magnetometer," is to perform a high-precision test of combined charge conjugation, parity inversion, and time reversal (CPT) invariance and local

Lorentz invariance by comparing the Larmor precession frequencies of potassium (K) and helium 3 ([He.sup.3]) atoms in the same cell as a function of time, i.e., the daily rotation of the Earth about its axis and the movement of the Earth relative to the cosmic microwave background radiation.

Thus one might have the intuition that although theories with spacelike worldlines are possible, theories with genuine spacelike influences are inconsistent with

Lorentz invariance. However, it is not that obvious what an explicit general version of this intuition is, and whether indeed it must hold in every Lorentz invariant theory.