Momentum-space Daubechies wavelets enable a Hamiltonian truncation for 1+1D phi^4 theory that captures the strong-coupling phase transition with converging critical coupling.
Tensor network analysis of critical coupling in two dimensionalϕ4 theory.Journal of High Energy Physics, 2019:184, 5 2019
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Hamiltonian formulation of the $1+1$-dimensional $\phi^4$ theory in a momentum-space Daubechies wavelet basis
Momentum-space Daubechies wavelets enable a Hamiltonian truncation for 1+1D phi^4 theory that captures the strong-coupling phase transition with converging critical coupling.