10027/22333 Lin Chen Lin Chen Shmuel Friedland Shmuel Friedland The tensor rank of tensor product of two three-qubit W states is eight University of Illinois at Chicago 2018 tensor rank qubit W state Kronecker product tensor product 2018-06-19 00:00:00 Journal contribution https://indigo.uic.edu/articles/journal_contribution/The_tensor_rank_of_tensor_product_of_two_three-qubit_W_states_is_eight/10772915 We show that the tensor rank of tensor product of two three-qubit W states is not less than eight. Combining this result with the recent result of M. Christandl, A. K. Jensen, and J. Zuiddam that the tensor rank of tensor product of two three-qubit W states is at most eight, we deduce that the tensor rank of tensor product of two three-qubit W states is eight. We also construct the upper bound of the tensor rank of tensor product of many three-qubit W states.