Work

Quantum Ising Hamiltonian Programming in Trio, Quartet, and Sextet Qubit Systems

Year: 2020

Type: article

Abstract: Rydberg-atom quantum simulators are of keen interest because of their possibilities towards highdimensional qubit architectures.Here we report continuous tuning of quantum Ising Hamiltonians of Rydberg atoms in three-dimensional arrangements.Various connected graphs of Rydberg atoms constructed with vertices and edges respectively representing atoms and Rydberg-blockaded atom pairs, and their eigenenergies are probed along with their geometric intermediates during structural transformations.Conformation spectra of star, complete, cyclic, and diamond graphs are probed for four interacting atoms and antiprism structures for six atoms.The energy level shifts and merges of the tested structural transformations are clearly observed with Fourier-transform spectroscopy, in good agreement with the model few-body quantum Ising Hamiltonian.This result demonstrates the possibility of continuous geometry tuning and thus programming of many-body spin-Hamiltonian systems.

Source: PRX Quantum

DOI: 10.1103/prxquantum.1.020323

Authors: Minhyuk Kim, Yunheung Song, Jaewan Kim, Jaewook Ahn

Institutions: Korea Advanced Institute of Science and Technology, Myongji University

Language: English

Topic: Cold Atom Physics and Bose-Einstein Condensates

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $3,450