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- W2034457252 abstract "We demonstrate that a coherent state may be a valid vacuum in light-front field theory. Then by minimizing the sum of the expectation values of the light-front Hamiltonian and the momentum operators in a variational trial state, we evaluate the ground state (vacuum) of two-dimensional ${ensuremath{varphi}}^{4}$ field theory. The resulting expectation value in the coherent state is identical with the result of the effective-potential method in the equal-time formulation. Thus we demonstrate how to solve for the ground state of the strong-coupling (${ensuremath{varphi}}^{4}$${)}_{2}$ problem on the light front. We also discuss the calculation of excited states." @default.
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- W2034457252 date "1988-05-15" @default.
- W2034457252 modified "2023-09-26" @default.
- W2034457252 title "Variational calculation of the spectrum of two-dimensional<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mrow><mml:msup><mml:mrow><mml:mi>φ</mml:mi></mml:mrow><mml:mrow><mml:mn>4</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:math>theory in light-front field theory" @default.
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- W2034457252 doi "https://doi.org/10.1103/physrevd.37.3010" @default.
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