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Reference.org
Exotic matter
open-in-new
<p>There are several proposed types of exotic matter: </p> <ul><li><a href="/facts/Hypothetical_particle/FwR0Ab6u">Hypothetical particles</a> and states of matter that have not yet been encountered, but whose properties would be within the realm of mainstream physics if found to exist.</li> <li>Several particles whose existence has been experimentally confirmed that are conjectured to be <a href="/facts/Exotic_hadron/0bAEeYGx">exotic hadrons</a> and within the <a href="/facts/Standard_Model/LhVGf9ow">Standard Model</a>.</li> <li><a href="/facts/State_of_matter/ojlIA1UF">States of matter</a> that are not commonly encountered, such as <a href="/facts/Bose%25E2%2580%2593Einstein_condensate/76peCwfW">Bose–Einstein condensates</a>, <a href="/facts/Fermionic_condensate/WlqsAJtp">fermionic condensates</a>, <a href="/facts/Nuclear_matter/QNMbRrWa">nuclear matter</a>, <a href="/facts/Quantum_spin_liquid/cUJx0mq8">quantum spin liquid</a>, <a href="/facts/String-net_liquid/djCBSlDm">string-net liquid</a>, <a href="/facts/Supercritical_fluid/rGkUWb7e">supercritical fluid</a>, <a href="/facts/Color-glass_condensate/ga8QSAJp">color-glass condensate</a>, <a href="/facts/Quark%25E2%2580%2593gluon_plasma/TQ8RPydR">quark–gluon plasma</a>, <a href="/facts/Rydberg_matter/ksXG1gDk">Rydberg matter</a>, <a href="/facts/Rydberg_polaron/qpY0yznT">Rydberg polaron</a>, <a href="/facts/Photonic_matter/m2aanUYa">photonic matter</a>, <a href="/facts/Wigner_crystal/GECG0eoS">Wigner crystal</a>, <a href="/facts/Superfluidity/QuePDujN">Superfluid</a> and <a href="/facts/Time_crystal/A5mq9AwN">time crystal</a> but whose properties are entirely within the realm of mainstream physics.</li> <li>Forms of matter that are poorly understood, such as <a href="/facts/Dark_matter/y5HgX55N">dark matter</a> and <a href="/facts/Mirror_matter/L6QSub8y">mirror matter</a>.</li> <li>Ordinary matter that when placed under <a href="/facts/High_pressure/mvnvWqIs">high pressure</a>, may result in dramatic changes in its physical or chemical properties.</li> <li><a href="/facts/Degenerate_matter/S5bc5MwK">Degenerate matter</a></li> <li><a href="/facts/Exotic_atom/FrPmnXvk">Exotic atoms</a></li></ul>