Are there any new states of matter yet?

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Discussion Overview

The discussion revolves around the existence of new states of matter, exploring both established and theoretical states. Participants consider various forms of matter, including those recognized in physics and chemistry, and inquire about any recent discoveries or classifications.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • Some participants list traditional states of matter such as solid, liquid, gas, plasma, and more exotic forms like bose-einstein condensate and quark/gluon plasma.
  • One participant suggests that singularities and dark matter should not be classified as states of matter, as they likely do not include electrons or quarks.
  • Another participant proposes neutrinos as a potential new type of matter.
  • A contribution highlights that chemists recognize additional states, including dissolved, adsorbed, interfacial, and colloidal states.
  • One participant introduces complex (dusty) plasmas as a new and unusual state of matter, describing their characteristics and significance in fundamental physics research.

Areas of Agreement / Disagreement

Participants express differing views on what constitutes a state of matter, with some suggesting new forms while others challenge the inclusion of certain categories. The discussion remains unresolved regarding the identification of any new states of matter.

Contextual Notes

There are limitations in the definitions and classifications of states of matter being discussed, and some participants' contributions depend on specific contexts or fields, such as physics versus chemistry.

questionpost
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The only ones I can think of are bose-einstein condensate in the same realm as super-liquids/solids, solid, solid-liquid, liquid, liquid-gas, gas, plasma, quark/gluon plasma, metallic or degenerate hydrogen (I guess critical point?), and degenerate neutronium and whatever singularities are made of and the theoretical dark matter. Is there anything else yet?
 
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questionpost said:
whatever singularities are made of and the theoretical dark matter.

Whatever singularities are made of and dark matter aren't states of matter, they likely don't include electrons or quarks.
 
jetwaterluffy said:
Whatever singularities are made of and dark matter aren't states of matter, they likely don't include electrons or quarks.

I know, but is there anything? Any new type of matter of any kind?
 
questionpost said:
I know, but is there anything? Any new type of matter of any kind?

In that case, you could include neutrinos.
 
Chemists distinguish quite a few more states;
The dissolved state, the adsorbed state, the interfacial state, etc

They further acknowledge disperse systems such as the 'colloidal state'.

go well
 
questionpost said:
The only ones I can think of are bose-einstein condensate in the same realm as super-liquids/solids, solid, solid-liquid, liquid, liquid-gas, gas, plasma, quark/gluon plasma, metallic or degenerate hydrogen (I guess critical point?), and degenerate neutronium and whatever singularities are made of and the theoretical dark matter. Is there anything else yet?


I found the following on page 62 of the Naval Research Laboratory Plasma Formulary NRL/PU/6790--11-551, Revised 2011:

Complex (dusty) plasmas (CDPs) may be regarded as a new and unusual state of matter. CDPs contain charged microparticles (dust grains) in addition to electrons, ions, and neutral gas. Electrostatic coupling between the grains can vary over a wide range, so that the states of CDPs can range from weakly coupled (gaseous) to crystalline. CDPs can be investigated at the kinetic level (individual particles are easily visualized and relevant time scales are accessible). CDPs are of interest as a non-Hamiltonian system of interacting particles as a means to study generic fundamental physics of self-organization, pattern formation, phase transitions, and scaling. Their discovery has therefore opened new ways of precision investigation in many-particle physics.

Respectfully submitted,
Steve
 

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