Neutral atomic tweezer arrays have become a promising platform for quantum computation,which possess rich degrees of freedom(DoFs)as an important resource for encoding quantum information.We explore the DoF quantum re...Neutral atomic tweezer arrays have become a promising platform for quantum computation,which possess rich degrees of freedom(DoFs)as an important resource for encoding quantum information.We explore the DoF quantum resource in a ladder-shaped atomic tweezer array and propose a scheme of high-dimensional universal quantum computation.This scheme encodes qubits to two degrees of freedom of a single atom,namely the motional(Mo)and the site-occupation(SO)DoFs,which allows one atom to carry two qubits and results in a two-layer qubit architecture.The single-qubit rotational gates on Mo-and SO-qubits,as well as the intra-and inter-DoF Controlled-NOT(CNOT)gates are designed,and the crosstalk between qubits encoded with different DoFs is particularly addressed and compensated by the strategy composed of the detuning engineering and multi-chromatic Hamiltonian modulation.Quantum circuits are assembled from these gates in the ladder-shaped atomic array,generating the hyper and hyper-hybrid entangled states between the Mo and SO DoFs.Our work paves the way for high-dimensional quantum computation with multiple DoFs.展开更多
基金supported by the Key Research and Development Program of China(Grants No.2022YFA1404102,No.2022YFC3003802 and No.2021YFB3900204)the Research Project of Hubei Education Department(Grants No.B2023077)the Doctoral Scientific Research Foundation of Hubei University of Automotive Technology(Grants No.BK202432).
文摘Neutral atomic tweezer arrays have become a promising platform for quantum computation,which possess rich degrees of freedom(DoFs)as an important resource for encoding quantum information.We explore the DoF quantum resource in a ladder-shaped atomic tweezer array and propose a scheme of high-dimensional universal quantum computation.This scheme encodes qubits to two degrees of freedom of a single atom,namely the motional(Mo)and the site-occupation(SO)DoFs,which allows one atom to carry two qubits and results in a two-layer qubit architecture.The single-qubit rotational gates on Mo-and SO-qubits,as well as the intra-and inter-DoF Controlled-NOT(CNOT)gates are designed,and the crosstalk between qubits encoded with different DoFs is particularly addressed and compensated by the strategy composed of the detuning engineering and multi-chromatic Hamiltonian modulation.Quantum circuits are assembled from these gates in the ladder-shaped atomic array,generating the hyper and hyper-hybrid entangled states between the Mo and SO DoFs.Our work paves the way for high-dimensional quantum computation with multiple DoFs.
