Excitonium!

[sevenperforce]

This is not a candidate for dark matter or black holes or anything like that.

This is a condensate state where excited electrons become bound to open spaces in valences of the atoms in the surrounding lattice, rather than just bouncing around. It's another example of matter, energy, and information bleeding into each other, and is weird/counterintuitive like quantum teleportation and particle-wave duality, but it's not a novel type of matter.

[YNM]

So, to sum up, this is just a "derrived" phenomenon, right ? Like, we're not really getting a lone charged immaterial or somesuch...

Question to ask, though : If exciton-ium were present, does the overall material becomes charged ? Or would there be some atoms which becomes charged overall ?

[sevenperforce]

34 minutes ago, YNM said:

So, to sum up, this is just a "derrived" phenomenon, right ? Like, we're not really getting a lone charged immaterial or somesuch...

Question to ask, though : If exciton-ium were present, does the overall material becomes charged ? Or would there be some atoms which becomes charged overall ?

No. An exciton is when a single excited electron becomes bound to the valence space. Excitonium is when the bound states overall form a condensate relationship within the larger molecular matrix.

Remember that total charge is conserved.

[PB666]

43 minutes ago, sevenperforce said:

No. An exciton is when a single excited electron becomes bound to the valence space. Excitonium is when the bound states overall form a condensate relationship within the larger molecular matrix.

Remember that total charge is conserved.

The excitonium-state lags in its return to the lowest ground state, at least until the entire system tolerates it. Its not really about charges after the electron is returned its about ground state seaking.

In protein folding this is nothing new, some proteins take hours to find their ground states, the more complex or interconnected the overall structure, the longer it can take to reach that ground state, and when temperatures are 27 K you don't have the kinetic energy in the structure to push it over any thermodynamic humps.

One thing that the article did not disclose is how long did the structure need to sit at that temperature or gradual lowering of temperature (remember entropy cannot be assessed in a state of disequilibrium) In some chemistry that translates into very slow lowering of thermal energy to shake things down to the minimal ground state for that temperature.

[Hannu2]

There are certain electron states in solid matter. Ion lattice determines them. Discrete states of single atoms becomes to broader electron bands and there may be gaps without states between them (band structure determines many electronic and optical properties of matter). Holes are single vacancies (empty states) on such band, which are normally fully occupied (so, there are an electron in every possible electron state in the band). These empty states can be approximated as positively charged particles with certain mass (may depend on direction in which the hole moves in crystal) and other properties. It is often practical and it is used much in semiconductor physics.

However, the holes are special properties of special electron states, which depends on lattice structure (atoms). If there are no atoms, there are no electron bands and the hole has no reasonable meaning in electron states of such system. Actually that kind of system is negatively charged and very unstable. Electrons repel each other and there are no attractive forces to keep system stable.

[p1t1o]

Um, but doesnt the positive character of a "hole" depends entirely upon the presence of protons?

I feel like a lot of the scientific meaning has been sucked out of the concept, it could easily be a paper idea great for discussing esoteric physics but with no basis in physical reality.

[PB666]

3 hours ago, p1t1o said:

Um, but doesn't the positive character of a "hole" depends entirely upon the presence of protons?

I feel like a lot of the scientific meaning has been sucked out of the concept, it could easily be a paper idea great for discussing esoteric physics but with no basis in physical reality.

You know how things get hyped up by universities, and the perverted by wannabe YouTube stars.

Don't over think it, imagine that if we had the electric field over a matrix of lined positively charged given by the number of electrons. And so we say the field exhibits near stability under a specific set of conditions (which we call Q'/A) if we relate the removal of an electron from the field then new field Q" /A > Q'/A even if Q /A (a neutral version of the same field) > Q'/A (the observed field). The reason one might do this is because charges can be shielded or have the lowest energy state despite having a potential. For example the lowest energy state of helium is the 1s orbital, even though the lowest potential energy of the  system* places the electron in the nucleus (in the Bohr model this never happens, in the QED model it very infrequently happens).

*before any one jumps all over this . . .one plausibe system . . not the most probable system.

Edited January 22, 2018 by PB666

[kerbiloid]

Even particles live on credit...
An electric charge temporarily borrowed from a proton in the absence of electron which would pay back the debt with its negative cash funds...

A lot of people live on credit, but now they discovered that whole societies of elementary particles are enjoying this lifestyle as well.

Soon the physics of particles will adopt new physical terms: "charge cash", "charge for rent", "charged on credit", "rate of interest", and "bankrupted atoms"