Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun mathematics, physics A
solution to the imaginary timenonlinear field equation of Yang-Mills field theory; carries information aboutquantum tunnelling .
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
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Examples
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A quantum fluctuation in the metric can pinch off a portion of vacuum energy which then quantum tunnels as an instanton through a potential field in superspace and into a nascent cosmology.
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In particular how does one get a matching conditions on the moduli space for the instanton state “pre-tunneling state” and the tunneling state.
The Lopsided Universe Sean 2008
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To the extent we can talk about a “nothingness” it appears to be some sort of instanton (tunnelling state) for the universe which exists on a false vacuum.
Chatting Theology with Robert Novak Sean 2008
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One idea of the creation of the universe suggests that before the universe a false vacuum existed (possibly, but not necessarily infinite in size) which our universe essentially ‘tunneled’ into as an instanton effect.
Chatting Theology with Robert Novak Sean 2008
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The real part is the instanton component that is a nabla S nabla I, reflecting the small quantum aspect of the spacetime — eg a WKB type of approximation.
Arrow of Time FAQ Sean 2007
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Without this, has the idea of the Coleman-De Luccia instanton been refuted?
Thought experiments Sean 2005
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His moduli space mimics the hypermultiplet but at finite radius, it receives some instanton corrections.
The Reference Frame 2010
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These instanton effects become domain wall in the full physical string.
The Reference Frame 2010
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Two examples: 1) mirror symmetry gives a spectacular check of the string instanton series.
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