This normalization results in the reduced Planck energy, defined as:

The Planck length is related to Planck energy by the uncertainty principle.

The fundamental limit for a photon's energy is the Planck energy, for the reasons cited above.

Spacetime had been punctured, penetrated at the quantum level, releasing a minuscule glint of Planck energy.

There are strong suggestions that this scale is around 10 GeV or 10 times the Planck energy.

As I said before, this seems unlikely because one would expect that there would be a cutoff at the Planck energy of 10 28 eV.

The Planck energy was the chemical energy of a car's full tank of gasoline--all concentrated in a single particle.

A sphere 1 Planck length in diameter, containing 1 unit of Planck energy, will result in a tiny (and very hot) black hole.

Gravitation is too weak to be relevant to individual particle interactions except at extremes of energy (Planck energy) and distance scales (Planck distance).

In physics, Planck energy, denoted by E, is the unit of energy in the system of natural units known as Planck units.

Of course, the Planck energy is a very long way from the energies of around a hundred GeV, which are the most that we can produce in the laboratory at the present time.

However, the MAGIC result was superseded by the substantially more precise measurements of the Fermi-LAT group, which couldn't find any effect even beyond the Planck energy.

A different model, inspired by that of Amelino-Camelia, was proposed in 2001 by João Magueijo and Lee Smolin, who also focused on the invariance of Planck energy.

Because it must be cut off at the Planck energy, Lorentz invariance is violated at high energies, creating a preferred reference system in which the zero point energy is at rest.

The Planck energy is not only the energy needed (in principle) to probe the Planck length, but is probably also the maximum possible energy that can fit into a region of that scale.

In relativity there is only one special number, the speed of light, but in quantum gravity, he explained, there is another special number, known as the Planck energy, equivalent to 1019 billion electron volts.

In ordinary physics, such effects occur only at the so-called Planck energy, 1019 billion electron volts, at which space-time itself appears bumpy and the paradoxical rules of quantum mechanics have to be applied to gravity.

However, the Fermi-LAT experiment in 2009 measured a 31-GeV photon, which nearly simultaneously arrived with other photons from the same burst, which excluded such dispersion effects even above the Planck energy.

The Stoney length and the Stoney energy, collectively called the Stoney scale, are not far from the Planck length and the Planck energy, the Planck scale.

Rather than a trillion electron volts or so, quantum effects push the mass all the way up to 10 quadrillion trillion electron volts, known as the Planck energy, where gravity and the other particle forces are equal.

In most cases, to test string theory directly, experimenters would have to build an accelerator to boost particles to the so-called Planck energy, at which "stringy" effects are expected to show up, roughly 10 quadrillion trillion electron volts.

It was realized that there are indeed three kind of deformations of special relativity that allow one to achieve an invariance of the Planck energy, either as a maximum energy, as a maximal momentum, or both.

By manipulating the basic dimensional constants one can also construct the Planck time, Planck length and Planck energy which make a good system of units for expressing dimensional measurements, known as Planck units.

The approach posits a quantum of action, h, to the generation of a tetrahedron, hence a Planck energy and thus a Planck mass to a tetrahedron, and decoherence setting in at a sucient mass and size scale.

There is no fundamental limit known to these wavelengths or energies, at either end of the spectrum, although photons with energies near the Planck energy or exceeding it (far too high to have ever been observed) will require new physical theories to describe.