@article{oai:nagoya.repo.nii.ac.jp:00005522, author = {Tsuchiizu, M. and Suzumura, Y.}, issue = {19}, journal = {Physical Review B}, month = {May}, note = {A role of umklapp scattering has been examined for two-coupled chains with both forward and backward scattering by applying the renormalization group method to the bosonized Hamiltonian. It has been found that a state with relevant interchain hopping changes into a state with irrelevant (confined)one when the magnitude of umklapp scattering becomes larger than that of interchain hopping. The critical value of umklapp scattering for such a confinement-deconfinement transition is calculated as the function of interchain hopping and intrachain interactions. A crossover from one-dimensional regime into that of coupled chains is also shown with decreasing temperature.}, pages = {12326--12337}, title = {Confinement-deconfinement transition in two coupled chains with umklapp scattering}, volume = {59}, year = {1999} }