14 citations · 47 across the 6 of their papers we have counts for
6 papers
Entanglement of Inhomogeneous Free Bosons and Orthogonal Polynomials
Pierre-Antoine Bernard, Rafael I. Nepomechie, Gilles Parez +3
In this paper, we investigate the ground-state entanglement entropy in inhomogeneous free-boson models in one spatial dimension. We develop a powerful method to extract the leading…
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…
Estimating Bethe roots with VQE
David Raveh, Rafael I. Nepomechie
Bethe equations, whose solutions determine exact eigenvalues and eigenstates of corresponding integrable Hamiltonians, are generally hard to solve. We implement a Variational Quant…
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…
Qudit Dicke state preparation
Rafael I. Nepomechie, David Raveh
Qudit Dicke states are higher-dimensional analogues of an important class of highly-entangled completely symmetric quantum states known as (qubit) Dicke states. A circuit for prepa…