We study the $\mathfrak{gl}_{m|n}$ XXX spin chains defined on tensor products of highest $\mathfrak{gl}_{m|n}$-modules. show that on-shell Bethe vectors are eigenvectors higher transfer matrices and compute corresponding eigenvalues, confirming Conjecture 5.15 arXiv:2007.15573 extending main results arXiv:0605015 to supersymmetric case. then take classical limits obtain for Gaudin models.

We investigate the ground-state property of an eg-orbital Hubbard model at quarter filling on a zigzag chain by exploiting the density matrix renormalization group method. When two orbitals are degenerate, the zigzag chain is decoupled to a doble-chain spin system to suppress the spin frustration due to the spatial anisotropy of the occupied orbital. On the other hand, when the level splitting ...

We construct the family of spin chain Hamiltonians, which have affine quantum group symmetry U q ˆ g. Their eigenvalues coincide with the eigen-values of the usual spin chain Hamiltonians, but have the degeneracy of levels, corresponding to affine U q ˆ g. The space of states of these spin chains is formed by the tensor product of fully reducible representations of quantum group. The fermionic ...

A reversed-phase high-performance liquid chromatography (HPLC) separation approach has been combined with ion mobility/time-of-flight (TOF) mass spectrometry in order to characterize a combinatorial peptide library designed to contain 4000 peptides of the general form NH2-Xxx-Xxx-XXX-CO2H, NH2-Ala-Xxx-Xxx-Xxx-CO2H, NH2-Ser-Ala-Xxx-Xxx-Xxx-CO2H and NH2-Leu-Ser-Ala-Xxx-Xxx-Xxx-CO2H (where Xxx rep...

The fragmentation of a series of singly protonated peptides, X-Leu-Asp-Val-Leu-Gln (XLDVLQ, X = Leu(L), His(H), Lys(K), or Arg(R) ), was investigated by surface induced dissociation (SID) in a tandem quadrupole mass spectrometer. The SID collision energies required for the fragmentation were found to increase with increasing gas-phase basicity of the ‘X’ amino acid residue. The results are cons...

We point out that the existence of global symmetries in a field theory is not an essential ingredient in its relation with an integrable model. We describe an obvious construction which, given an integrable spin chain, yields a field theory whose 1-loop scale transformations are generated by the spin chain Hamiltonian. We also identify a necessary condition for a given field theory to be relate...