Creating useful multi-particle state with Quantum Random walk


We can decode position of particle in qbits string by replacing the translation operator with "summation quantum circuit". After the process of QRW we have 1 qbits in coin space and multi qbits in position space. As a result, we have multi-particle state (MS) with special properties. First, we changed the coin operator and checked the general entanglement properties of the MS with Q measure and found that for $2^K$ steps we have maximal entanglement. Second, for specific initial state we have special MS which is stable under bit flip on all qbits. Third, we checked entanglement molecules in the case of losing particle. We investigated these properties numerically and found interesting results; also, we are trying to formulate them analytically.