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- Metastability abstract "Metastability denotes the phenomenon when a system spends an extended time in a configuration other than the system's state of least energy. During a metastable state of finite lifetime all state-describing parameters reach and hold stationary values. While in isolation: the state of least energy is the only one the system will inhabit for a definite amount of time, until more external energy is added to the system (unique \"absolutely stable\" state); the system will spontaneously leave any other state (of higher energy) to eventually return (after a sequence of transitions) to the least energetic state.A single particle analogy may be drawn with a ball resting in a hollow on a slope. With some perturbation the ball may start rolling again to lower levels. Isomerisation is another common example, where higher energy isomers are long lived as they are prevented from rearranging to the ground state by (possibly large) barriers in the potential energy.The metastability concept originates in the physics of first-order phase transitions later to acquire new meanings in the study of aggregated subatomic particles (in atomic nuclei or in atoms) or in molecules, macromolecules or clusters of atoms and molecules. Later on it was borrowed for the study of decision-making and information transmitting systems.Many complex natural and man-made systems can demonstrate metastability.Metastability is common in physics and chemistry - from an atom (many-body assembly) to statistical ensembles of molecules (viscous fluids, amorphous solids, liquid crystals etc.) at molecular levels or as a whole (see metastable phases of matter and grain piles below). The abundance of states is more prevalent as the systems grow larger and/or if the forces of their mutual interaction are spatially less uniform or more diverse.In dynamic systems (with feedback) like electronic circuits, signal trafficking, decisional systems and neuroscience - it is the time-invariance of the active or reactive patterns with respect to the external influences that defines stability and metastability (see brain metastability below). Here the equivalent of the thermal fluctuations is the \"white noise\" affecting the signal propagation and the decision-making.".
- Metastability thumbnail Meta-stability.svg?width=300.
- Metastability wikiPageID "19833".
- Metastability wikiPageLength "13253".
- Metastability wikiPageOutDegree "97".
- Metastability wikiPageRevisionID "704112698".
- Metastability wikiPageWikiLink Abelian_sandpile_model.
- Metastability wikiPageWikiLink Absolute_zero.
- Metastability wikiPageWikiLink Activation_energy.
- Metastability wikiPageWikiLink Allotropy.
- Metastability wikiPageWikiLink Atom.
- Metastability wikiPageWikiLink Atomic_nucleus.
- Metastability wikiPageWikiLink Avalanche.
- Metastability wikiPageWikiLink Boron.
- Metastability wikiPageWikiLink Catalysis.
- Metastability wikiPageWikiLink Category:Chemical_properties.
- Metastability wikiPageWikiLink Category:Dynamical_systems.
- Metastability wikiPageWikiLink Chaos_theory.
- Metastability wikiPageWikiLink Chemical_bond.
- Metastability wikiPageWikiLink Chemical_kinetics.
- Metastability wikiPageWikiLink Chemical_stability.
- Metastability wikiPageWikiLink Chemistry.
- Metastability wikiPageWikiLink Cluster_chemistry.
- Metastability wikiPageWikiLink Cofactor_(biochemistry).
- Metastability wikiPageWikiLink Colloid.
- Metastability wikiPageWikiLink Computational_neuroscience.
- Metastability wikiPageWikiLink Crystal_structure.
- Metastability wikiPageWikiLink DNA.
- Metastability wikiPageWikiLink Degenerate_energy_levels.
- Metastability wikiPageWikiLink Diamond.
- Metastability wikiPageWikiLink Electron.
- Metastability wikiPageWikiLink Emulsion.
- Metastability wikiPageWikiLink Enzyme.
- Metastability wikiPageWikiLink False_vacuum.
- Metastability wikiPageWikiLink Feedback.
- Metastability wikiPageWikiLink Friction.
- Metastability wikiPageWikiLink Glass.
- Metastability wikiPageWikiLink Graphite.
- Metastability wikiPageWikiLink Ground_state.
- Metastability wikiPageWikiLink Half-life.
- Metastability wikiPageWikiLink Hysteresis.
- Metastability wikiPageWikiLink International_Union_of_Pure_and_Applied_Chemistry.
- Metastability wikiPageWikiLink Intrinsic_and_extrinsic_properties.
- Metastability wikiPageWikiLink Isomer.
- Metastability wikiPageWikiLink Isospin.
- Metastability wikiPageWikiLink Isotope.
- Metastability wikiPageWikiLink Laser.
- Metastability wikiPageWikiLink Macromolecule.
- Metastability wikiPageWikiLink Martensite.
- Metastability wikiPageWikiLink Maxima_and_minima.
- Metastability wikiPageWikiLink Metastability.
- Metastability wikiPageWikiLink Metastability_in_electronics.
- Metastability wikiPageWikiLink Metastability_in_the_brain.
- Metastability wikiPageWikiLink Molecule.
- Metastability wikiPageWikiLink Non-equilibrium_thermodynamics.
- Metastability wikiPageWikiLink Nuclear_isomer.
- Metastability wikiPageWikiLink Nucleon.
- Metastability wikiPageWikiLink Phase_diagram.
- Metastability wikiPageWikiLink Phase_transition.
- Metastability wikiPageWikiLink Physics.
- Metastability wikiPageWikiLink Polymer.
- Metastability wikiPageWikiLink Polymorphism_(materials_science).
- Metastability wikiPageWikiLink Population_inversion.
- Metastability wikiPageWikiLink Potential.
- Metastability wikiPageWikiLink Pressure.
- Metastability wikiPageWikiLink Protein.
- Metastability wikiPageWikiLink Quantum.
- Metastability wikiPageWikiLink Quantum_mechanics.
- Metastability wikiPageWikiLink Quantum_tunnelling.
- Metastability wikiPageWikiLink Quark.
- Metastability wikiPageWikiLink Quartz.
- Metastability wikiPageWikiLink RNA.
- Metastability wikiPageWikiLink Reaction_intermediate.
- Metastability wikiPageWikiLink Rectangular_potential_barrier.
- Metastability wikiPageWikiLink Resonance.
- Metastability wikiPageWikiLink Rydberg_atom.
- Metastability wikiPageWikiLink Sand.
- Metastability wikiPageWikiLink Selection_rule.
- Metastability wikiPageWikiLink Spectral_line.
- Metastability wikiPageWikiLink Standard_conditions_for_temperature_and_pressure.
- Metastability wikiPageWikiLink State_of_matter.
- Metastability wikiPageWikiLink Stimulated_emission.
- Metastability wikiPageWikiLink Subatomic_particle.
- Metastability wikiPageWikiLink Sublimation_(phase_transition).
- Metastability wikiPageWikiLink Supercooling.
- Metastability wikiPageWikiLink Superheating.
- Metastability wikiPageWikiLink System_dynamics.
- Metastability wikiPageWikiLink Technetium-99m.
- Metastability wikiPageWikiLink Temperature.
- Metastability wikiPageWikiLink Thermal_fluctuations.
- Metastability wikiPageWikiLink File:Meta-stability.svg.
- Metastability wikiPageWikiLink File:MtBaker-Chair8-Top.jpg.
- Metastability wikiPageWikiLinkText "Meta-stable states".
- Metastability wikiPageWikiLinkText "Metastability".
- Metastability wikiPageWikiLinkText "Metastability#Phases of matter".
- Metastability wikiPageWikiLinkText "brain metastability".
- Metastability wikiPageWikiLinkText "grain piles".
- Metastability wikiPageWikiLinkText "long-lived 'bubble'".
- Metastability wikiPageWikiLinkText "long-lived, but not completely stable".
- Metastability wikiPageWikiLinkText "meta".