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Tagged with sine-gordon lagrangian-formalism
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Finding the energy of a solution to the Sine-Gordon equation
I am delving into Quantum-Field Theory, and am stuck trying to work out how to compute the energy of a soliton solution to the Sine-Gordon equation in 1-1 spacetime.
I start with the Lagrangian ...
4
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1
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Instanton in sine-Gordon equation
This is a statement from Giamarchi's book on Quantum Physics in 1D:
"For a single-particle in a cosine potential, the slightest amount of
tunneling between two cosine minima leads to conduction ...