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- Metastability abstract "Metastability describes the extended time spent by an isolated system in a long lived 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 indefinitely inhabit (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 wikiPageRevisionID "598198579".
- Metastability hasPhotoCollection Metastability.
- Metastability subject Category:Chemical_properties.
- Metastability subject Category:Dynamical_systems.
- Metastability comment "Metastability describes the extended time spent by an isolated system in a long lived 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.".
- Metastability label "Estado metaestável".
- Metastability label "Metaestabilidad".
- Metastability label "Metastability".
- Metastability label "Metastabilità".
- Metastability label "Metastabilität".
- Metastability label "Metastabilność".
- Metastability label "Métastabilité".
- Metastability label "Метастабильное состояние".
- Metastability label "شبه مستقر".
- Metastability label "準安定状態".
- Metastability sameAs Metastabilität.
- Metastability sameAs Metaestabilidad.
- Metastability sameAs Métastabilité.
- Metastability sameAs Metastabilità.
- Metastability sameAs 準安定状態.
- Metastability sameAs 준안정.
- Metastability sameAs Metastabilność.
- Metastability sameAs Estado_metaestável.
- Metastability sameAs m.0drl73.
- Metastability sameAs Q849516.
- Metastability sameAs Q849516.
- Metastability wasDerivedFrom Metastability?oldid=598198579.
- Metastability depiction Meta-stability.svg.
- Metastability isPrimaryTopicOf Metastability.
