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Where to find a Path Integral treatment of 1D Quantum Heisenberg model or Quantum Spin Chain?
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Where to find a Path Integral treatment of 1D Quantum Heisenberg model or Quantum Spin Chain?
I would like to find a detailed calculation of path amplitude in such situation. I did some google ...
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How to find groundstate energy of a simple Hamiltonian at $N/L$-filling using Jordan-Wigner (JW) transformation?
$\underline{\textbf{Model:}}$
Let we have the $t-V$ model for spinless fermions on a 1D lattice, which is defined in second quantization operators as follows:
$$H_1 = -t\sum_i \big(c_i^\dagger c_{i+...
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2
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Integrability of generalized Richardson-Hubbard model
Recently I got a bit interested in the possibility of finding spectrum of few interesting class of lattice quantum mechanical hamiltonians like Richardson's pairing hamiltonian, 1D Hubbard hamiltonian,...
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Boundary critical exponents of the 1D quantum XY model
Critical properties of the two-dimensional Ising model in the bulk and at the boundary are characterized by different critical exponent, see Ising model: exact results and McCoy: The boundary Ising ...
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