Plot of TTY potential (V(r ij ); TTY pot), He-dimer wave function and correlation function (η(r ij ); CF) as a function of r ij . Note the logarithmic scale for r ij .
Lowest eigenpotential (solid line) and ground state wave function (dashed line, arbitrary unit) for the 4He trimer with TTY potential as a function of hyperradius r. Note the logarithmic scale for r.
Plot of three-body energy (ε) against ln |a s |, where a s is the two-body scattering length for helium trimer. Energies of first, second, third, and fourth excited state are given by the symbols ♦, +, □, ×, respectively.
The 4He-dimer energy using TTY potential.
The absolute value of 4He-trimer ground state energy (in units of mK) obtained via different methods.
Calculated energies of the first four excited states (ε1, ε2, ε3, ε4) of the 4He trimer for different two-body interaction strength (λ) together with the number of bound states for each λ. Energy values are in Kelvin (K).
Energies (where n is the number of excitations) for 4He N cluster, N = 4 − 9, calculated by correlated PH basis. Comparison with MC hyperspherical and other available results is also presented. Energy values are in cm−1.
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