8 papers · 1 filter
Preparing multi-qudit states in a definite-weight subspace
Nabi Zare Harofteh, Rafael I. Nepomechie
We formulate a deterministic algorithm for preparing arbitrary multi-qudit states in a definite-weight subspace. By ordering the corresponding computational basis states according…
Spin- -eigenstate preparation
Nabi Zare Harofteh, Rafael I. Nepomechie
We formulate a deterministic algorithm for preparing a general -eigenstate of a spin- chain of length . These states consist of linear combinations of computational bas…
Simple ways of preparing qudit Dicke states
Noah B. Kerzner, Federico Galeazzi, Rafael I. Nepomechie
Dicke states are permutation-invariant superpositions of qubit computational basis states, which play a prominent role in quantum information science. We consider here two higher-d…
Dicke states as matrix product states
David Raveh, Rafael I. Nepomechie
We derive an exact canonical matrix product state (MPS) representation for Dicke states with minimal bond dimension , for general values of and , for…
Deterministic Bethe state preparation
David Raveh, Rafael I. Nepomechie
We present an explicit quantum circuit that prepares an arbitrary -eigenstate on a quantum computer, including the exact eigenstates of the spin-1/2 XXZ quantum spin chain wi…
Spin-s Dicke states and their preparation
Rafael I. Nepomechie, Francesco Ravanini, David Raveh
We introduce the notion of spin- Dicke states, which are higher-spin generalizations of usual (spin-1/2) Dicke states. These multi-qudit states can be expressed as super…