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.
Quantum sine-gordon equation as the massive thirring model.Phys
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A local current-algebra Hamiltonian makes the Hatsugai-Kohmoto model spatially local in real space, with identical charge susceptibility to the fermionic formulation.
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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.
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Local Current Algebra for the HK Universality Class
A local current-algebra Hamiltonian makes the Hatsugai-Kohmoto model spatially local in real space, with identical charge susceptibility to the fermionic formulation.